A positioning device for parts connection with fast switching function

Abstract

The present invention discloses a positioning device for connecting parts with a quick switching function, comprising: a support seat, a swing arm positioning piece, a pin shaft, a sleeve, a swing arm, a connecting arm, a lifting mechanism, an upper positioning shaft and a lower positioning shaft. Wherein: the swing arm positioning piece is fixed to the top of the support seat, the pin shaft is vertically fixed to one end of the swing arm positioning piece, and the sleeve is rotatably sleeved on the pin shaft. The swing arm is fixed to the outer wall of the sleeve, and the swing arm and the swing arm positioning piece are detachably connected. The connecting arm is symmetrically fixed to the outer wall of the sleeve relative to the swing arm. The lifting mechanism is fixed to the connecting arm, the upper positioning shaft is fixed to the lifting rod of the lifting mechanism, and the lower positioning shaft is fixed below the upper positioning shaft. The positioning device can quickly switch between the two working conditions of positioning and disengaging parts. It is not only efficient, but also effectively solves the problem that the traditional positioning device is difficult to remove parts after the parts are assembled and welded, which easily causes the parts to collide.

Description

Technical Field

[0001] The invention relates to the field of component positioning devices, and in particular to a component connection positioning device with a fast switching function. Background Art

[0002] The information disclosed in the background of the invention is only intended to enhance the understanding of the overall background of the invention and should not be necessarily regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0003] In the field of engineering machinery, the assembly and welding of medium and thick plate structural parts involves the positioning of key dimensions and key components, which requires high precision. In addition, since the weight of medium and thick plate material parts is relatively heavy, these key factors need to be considered in the process of use. At present, the multi-hole and end face positioning in the assembly and welding of medium and thick plate parts adopts rigid positioning. It is very difficult to hoist the upper and lower parts during use, which is easy to bump and collide, and the clamping operation is cumbersome during use, which causes great inconvenience to the production.

[0004] In summary, the inventors have found that the existing positioning devices still have the following deficiencies during use: 1. The positioning device has high manufacturing precision, but the key positioning wearing parts are troublesome to disassemble and replace, and the maintenance cost is high; 2. During the use of the positioning device, unnecessary operations such as tightening bolts are required to clamp the workpiece, which is cumbersome and has low production efficiency; 3. Different product models cannot share a set of positioning devices during use, and adjustment is difficult during product change; 4. During use, the positioning device cannot be adjusted away from the workpiece, and it is easy to bump into the tooling, causing damage to the product and the tooling. Summary of the invention

[0005] The present invention provides a positioning device for connecting parts with a fast switching function, which can not only realize the precise positioning of the assembly welding parts, but also can quickly switch between the two working conditions of positioning and detaching the parts, which is not only efficient, but also effectively solves the problem that the traditional positioning device is difficult to remove the parts after the assembly welding of the parts is completed, which easily causes the parts to collide. To achieve the above purpose, the technical solution of the present invention is as follows.

[0006] A positioning device for connecting parts with a quick switching function, comprising: a support seat, a swing arm positioning member, a pin shaft, a sleeve, a swing arm, a connecting arm, a lifting mechanism, an upper positioning shaft and a lower positioning shaft. Wherein: the swing arm positioning member is fixed to the top of the support seat, the pin shaft is vertically fixed to one end of the swing arm positioning member, and the sleeve is rotatably sleeved on the pin shaft. The swing arm is fixed to the outer wall of the sleeve, and the swing arm and the swing arm positioning member are detachably connected. The connecting arm is symmetrically fixed to the outer wall of the sleeve relative to the swing arm. The lifting mechanism is fixed to the connecting arm, the upper positioning shaft is fixed to the lifting rod of the lifting mechanism, and the lower positioning shaft is fixed below the upper positioning shaft, so that the parts to be positioned are clamped and positioned by the upper positioning shaft and the lower positioning shaft.

[0007] Furthermore, the swing arm and the swing arm positioning member are detachably connected via bolts.

[0008] Alternatively, the swing arm positioning member and the swing arm are both provided with positioning holes corresponding to each other, and a positioning rod is inserted into the positioning hole, so that the swing arm and the swing arm positioning member are detachably connected. After the assembly welding of the parts is completed, the positioning rod is pulled out, so that the lifting mechanism and the upper positioning shaft can be moved to one side by swinging the swing arm, so that the parts can be lifted and removed conveniently.

[0009] Furthermore, the support seat is fixed on the bottom plate, and the lower positioning shaft is fixed on the bottom plate; preferably, a first reinforcing rib plate is fixed between the support seat and the bottom plate to increase the stability of the support seat.

[0010] Furthermore, it also includes a guide rail, the base plate is slidably connected to the guide rail, a positioning piece is fixed under the base plate, and the base plate and the positioning piece are detachably connected to facilitate moving the support seat according to workpieces of different specifications, thereby achieving rapid production change and improving work efficiency.

[0011] Furthermore, the support seat is connected to a telescopic mechanism, and the telescopic mechanism can drive the support seat and the base plate to reciprocate along the guide rail to reduce the work intensity of the operator.

[0012] Furthermore, the lifting mechanism and telescopic mechanism include any one of a hydraulic cylinder, a pneumatic cylinder, a stepping motor, etc., and the upper positioning shaft is driven downward by the lifting mechanism to achieve positioning of the components below.

[0013] Furthermore, an oil filling hole is provided in the pin shaft, and the oil filling hole extends into the gap between the pin shaft and the sleeve, so as to inject lubricating oil into the gap between the pin shaft and the sleeve.

[0014] Furthermore, the connecting arm is fixed to the upper portion of the outer wall of the sleeve so as to increase the component accommodating space and facilitate the positioning of components with larger sizes.

[0015] Furthermore, it also includes a fixing sleeve, the outer wall of the lower positioning shaft has an outwardly convex inclined surface, the lower positioning shaft is installed in the mounting hole of the fixing sleeve and the inclined surfaces of the two are in contact. The threaded sleeve is threadedly connected to the outer wall of the fixing sleeve, and the threaded sleeve is pressed against the top surface of the inclined surface, so that the lower positioning shaft is detachably fastened in the fixing sleeve.

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

[0017] (1) The positioning device of the present invention utilizes a swing arm to realize the movement of the connecting arm carrying the lifting mechanism and the upper positioning shaft, thereby moving away from the welded parts, which is convenient for lifting / unloading the parts and preventing the parts from colliding or being damaged due to the interference of the connecting arm, the positioning shaft, etc. Because such welded parts are large in size and heavy in weight, they need to be lifted at the positioning device by a lifting machine before the parts are positioned, and the parts need to be lifted again after the welding is completed. Therefore, a large operating space is required, otherwise it is easy to cause collisions between the parts and the positioning device, which may easily lead to damage to the positioning device and the parts. The positioning device of the present invention has a fast switching function, which can realize fast switching between the two working conditions of positioning and detaching the parts. Therefore, before the positioning of the parts and after the welding is completed, the connecting arm carrying the lifting mechanism and the upper positioning shaft that may affect the parts can be moved to the side, thereby overcoming the problem that the welding machine has difficulty in unloading the parts after the welding is completed, which may easily lead to collisions or damage to the parts.

[0018] (2) The positioning device of the present invention not only has high positioning accuracy, but also can be applied to the positioning and assembly welding of parts of various types and models. When in use, the swing arm support seat is pulled by the telescopic mechanism to move on the guide rail, so that different products can share the device, realize rapid production change, and improve work efficiency. After testing, the production change time is saved by more than 70%, and the labor intensity of workers is significantly reduced. In addition, the manufacturing cost of the positioning device of the present invention is reduced by more than 20% compared with the traditional positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a front view of the positioning device for connecting parts in an embodiment of the present invention.

[0021] Figure 2 It is a left view of the positioning device for connecting parts in an embodiment of the present invention.

[0022] Figure 3 It is a front view of the swing arm positioning member in an embodiment of the present invention.

[0023] Figure 4 It is a schematic diagram of the positioning device for connecting parts in the embodiment of the present invention in use.

[0024] Figure 5 Schematic diagram of the structure of another lower positioning shaft in an embodiment of the present invention.

[0025] The marks in the figure represent: 1-support seat, 2-swing arm positioning piece, 3-pin shaft, 4-sleeve, 5-swing arm, 6-connecting arm, 7-lifting mechanism, 8-upper positioning shaft, 9-lower positioning shaft, 10-positioning hole, 11-positioning rod, 12-base plate, 13-guide rail, 14-positioning piece, 15-telescopic mechanism, 16-oil filling hole, 17-parts, 18-fixing sleeve, 19-inclined portion, 20-threaded sleeve. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0027] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to need to have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. Now further explanation is given in conjunction with the drawings and specific embodiments of the specification.

[0028] refer to Figures 1 to 4 , an example of a positioning device for connecting parts with a quick switching function, including: a support seat 1, a swing arm positioning member 2, a pin shaft 3, a sleeve 4, a swing arm 5, a connecting arm 6, a lifting mechanism 7, an upper positioning shaft 8 and a lower positioning shaft 9. Among them:

[0029] The support base 1 is fixed vertically, and the swing arm positioning member 2 is fixed horizontally on the top surface of the support base 1 , and a positioning hole 10 is opened on the upper surface of the swing arm positioning member 2 to facilitate fixing the swing arm 5 .

[0030] The pin shaft 3 is a circular shaft, which is vertically fixed on the upper surface of the swing arm positioning member 2, and the pin shaft 3 is concentrically arranged with the support seat 1 to ensure good support for the pin shaft 3. The sleeve 4 is a circular cylinder with a diameter larger than the pin shaft 3, which is sleeved on the pin shaft 3 so as to rotate around the pin shaft 3. The swing arm 5 is fixed on the outer wall of the sleeve 4, and the swing arm 5 is provided with a positioning hole corresponding to the positioning hole 10. When the swing arm 5 rotates to overlap the swing arm positioning member 2, the swing arm 5 overlaps the upper surface of the swing arm positioning member 2, and the positioning rod 11 is inserted in the positioning hole 10, so that the swing arm 5 is detachably connected to the swing arm positioning member 2. After the assembly welding of the component 17 is completed, the positioning rod 11 is pulled out, so that the lifting mechanism 7 and the upper positioning shaft 8 can be moved to one side by swinging the swing arm 5, so as to facilitate the lifting and removal of the component 17. Alternatively, screw holes can be opened on the swing arm 5 and the swing arm positioning piece 2, and then bolts or screws can be used to achieve a detachable connection between the two. The swing arm 5 and the swing arm positioning piece 2 are connected and fixed mainly during the component positioning and solder masking process. At this time, the upper positioning shaft 8 needs to be kept stable and cannot swing to avoid affecting the positioning accuracy. After removing the positioning rod 11, the swing arm 5 can be rotated along the pin shaft 3, which is convenient for removing the positioning mechanism composed of the connecting arm 6, lifting mechanism 7, upper positioning shaft 8 and lower positioning shaft 9 from the component 17.

[0031] The connecting arm 6 is symmetrically fixed to the outer wall of the sleeve 4 relative to the swing arm 5, and the connecting arm 6 is fixed to the upper part of the outer wall of the sleeve 4 to increase the space for accommodating the component 17, which is convenient for positioning the component 17 with a larger size. The lifting mechanism 7 is a hydraulic cylinder, which is vertically fastened to the connecting arm 6 by a bolt assembly, and the lifting rod of the lifting mechanism 7 extends downward after passing through the connecting arm 6. The upper positioning shaft 8 is fixed on the lifting rod of the lifting mechanism 7, and the lower positioning shaft 9 is fixed below the upper positioning shaft 8, so that the upper positioning shaft 8 is driven by the lifting mechanism 7 to move downward and insert into the socket of the component 17, and cooperates with the lower positioning shaft 9 to clamp and position the component 17 to be positioned. When the component 17 is resisted with solder or needs to be removed, the lifting mechanism 7 drives the upper positioning shaft 8 to move upward. It should be understood that in order to enable the positioning shaft 8 to press the component 17 after entering the socket, the lower end diameter of the upper positioning shaft 8 is smaller than the socket, while the upper end diameter is larger than the socket. Alternatively, the upper positioning shaft 8 is a conical structure. Specifically, when the insertion hole is a circular hole, the upper positioning shaft 8 is a conical structure. When the insertion hole is a non-circular hole, the upper positioning shaft 8 is a corresponding conical structure.

[0032] The positioning device of this embodiment uses the swing arm 5 to realize the movement of the connecting arm 6 carrying the lifting mechanism 7 and the upper positioning shaft 8, and then away from the parts that have been welded, which is convenient for the lifting / unloading of the parts 17 and prevents the parts from colliding and being damaged due to the interference of the connecting arm 6, the positioning shaft 8, etc. Because such welded parts are large in size and weight, they need to be lifted at the positioning device by a lifting machine before the parts are positioned, and the parts need to be lifted away again after the welding is completed, so a large operating space is required, otherwise it is easy to cause collisions between the parts and the positioning device, which can easily lead to damage to the positioning device and the parts. The positioning device of the present invention has a fast switching function, which can realize fast switching between the two working conditions of positioning and detaching from the parts, so that the connecting arm 6 carrying the lifting mechanism 7 and the upper positioning shaft 8 that may affect the parts can be moved to the side before the positioning of the parts and after the welding is completed, thereby overcoming the problem that the welding machine has difficulty in unloading parts after the welding is completed in the traditional positioning device, which can easily lead to collisions of parts.

[0033] Furthermore, in order to enable the above-mentioned positioning device to be applicable to the positioning and assembly welding of parts of various types and models, in a preferred embodiment, the support seat 1 is fastened to the base plate 12 by a bolt assembly, and a first reinforcing rib plate is fixed between the support seat 1 and the base plate 12 to increase the stability of the support seat 1. The lower positioning shaft 9 is fixed to the base plate 12 by bolts so as to move synchronously with the upper positioning shaft 8. A guide rail 13 is respectively arranged on both sides below the base plate 12, and the base plate 12 is slidably connected to the guide rail 13, and a positioning member 14 is fixed between the guide rails 13 below the base plate 12, and the base plate 12 and the positioning member 14 are detachably connected by a bolt assembly. The support seat 1 is connected to a telescopic mechanism 15, and the telescopic mechanism 15 is a hydraulic cylinder, which can drive the support seat 1 and the base plate 12 to reciprocate along the guide rail 13 to reduce the work intensity of the operator. When in use, the swing arm support seat is pulled by the telescopic mechanism to move on the guide rail, so that different products can share the device, achieve rapid production change, and improve work efficiency. After testing, the production change time is saved by more than 70%, and the labor intensity of workers is significantly reduced. Moreover, the manufacturing cost of the positioning device of the present invention is reduced by more than 20% compared with the traditional positioning device.

[0034] refer to Figure 1 In another preferred embodiment, an oil filling hole 16 is provided in the pin shaft 3, and the oil filling hole extends into the gap between the pin shaft 3 and the sleeve 4, so as to inject lubricating oil between the pin shaft 3 and the sleeve 4, so as to facilitate the sleeve 4 to rotate along the pin shaft 3 more easily.

[0035] refer to Figure 1In another preferred embodiment, a second reinforcing rib is fixed between the sleeve 4 and the connecting arm 6 to strengthen the firmness of the sleeve 4 and the connecting arm 6 and prevent the connecting arm 6 from separating from the sleeve 4.

[0036] refer to Figure 5 In another preferred embodiment, it further includes a fixing sleeve 18, which is fixed on the ground or the base plate 12, and the outer wall of the lower positioning shaft 9 has a convex inclined portion 19, and the lower positioning shaft 9 is installed in the mounting hole of the fixing sleeve 18 and the inclined surfaces of the two are in contact. The threaded sleeve 20 is threadedly connected to the outer wall of the fixing sleeve 18, and the threaded sleeve 20 is pressed on the top surface of the inclined portion, so that the lower positioning shaft 9 is removably fastened in the fixing sleeve 18. This method can quickly replace the lower positioning shaft 9 according to different requirements while ensuring the positioning accuracy. During installation, the lower positioning shaft 9 is guided to penetrate into the fixing sleeve 18, and the threaded sleeve is tightened to drive the lower positioning shaft 9 to move downward and be self-tightened with the positioning shaft.

[0037] Finally, it should be noted that any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Although the above describes the specific implementation of the present invention in conjunction with the drawings, it is not a limitation of the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.

Claims

1. A positioning device for connecting parts with a quick switching function, wherein: include: Support seat; A swing arm positioning piece, wherein the swing arm positioning piece is fixed on the top of the support seat; A pin shaft, the pin shaft being vertically fixed to one end of the swing arm positioning member; A sleeve, the sleeve being rotatably sleeved on the pin; A swing arm, wherein the swing arm is fixed on the outer wall of the sleeve and the swing arm is detachably connected to the swing arm positioning member; A connecting arm, wherein the connecting arm is symmetrically fixed to the outer wall of the sleeve relative to the swing arm; A lifting mechanism, wherein the lifting mechanism is fixed on the connecting arm; An upper positioning shaft, wherein the upper positioning shaft is fixed on a lifting rod of the lifting mechanism; as well as A lower positioning shaft, wherein the lower positioning shaft is fixed below the upper positioning shaft; It also includes a fixing sleeve and a threaded sleeve, the outer wall of the lower positioning shaft has an outwardly convex inclined portion, the lower positioning shaft is installed in the mounting hole of the fixing sleeve and the inclined surfaces of the two are in contact; the threaded sleeve is threadedly connected to the outer wall of the fixing sleeve, and the threaded sleeve is pressed against the top surface of the inclined portion, so that the lower positioning shaft is removably fastened in the fixing sleeve.

2. The component connection positioning device with a rapid switching function according to claim 1, characterized in that: The support seat is fixed on the bottom plate, and the lower positioning shaft is fixed on the bottom plate; a first reinforcing rib plate is fixed between the support seat and the bottom plate.

3. The component connection positioning device with a rapid switching function according to claim 2, characterized in that: It also includes a guide rail, the bottom plate is slidably connected to the guide rail, a positioning piece is fixed below the bottom plate, and the bottom plate and the positioning piece are detachably connected.

4. The component connection positioning device with a rapid switching function according to claim 3, characterized in that: The support seat is connected to a telescopic mechanism capable of driving the support seat to reciprocate along the guide rail; the telescopic mechanism includes any one of a hydraulic cylinder and a pneumatic cylinder.

5. The component connection positioning device with a rapid switching function according to claim 1, characterized in that: An oil filling hole is arranged in the pin shaft, and the oil filling hole extends into the gap between the pin shaft and the sleeve.

6. The component connection positioning device with a rapid switching function according to claim 1, characterized in that: The connecting arm is fixed on the upper part of the outer wall of the sleeve.

7. The component connection positioning device with a rapid switching function according to claim 1, characterized in that: The swing arm and the swing arm positioning member are detachably connected via bolts.

8. The positioning device for connecting parts with a rapid switching function according to claim 1, characterized in that: The swing arm positioning piece and the swing arm are both provided with positioning holes corresponding to each other, and a positioning rod is inserted into the positioning hole.

9. The component connection positioning device with a fast switching function according to any one of claims 1 to 8, characterized in that: The lifting mechanism is any one of a hydraulic cylinder, a pneumatic cylinder and a stepping motor.

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