Conversion device for screw locking mechanism for simultaneous installation of diagonal screws for products

Abstract

The application relates to a retrofit device for simultaneously installing diagonal screws for a screw locking mechanism of a product, two sets of screw locking mechanisms are installed on the device, the retrofit device comprises an angle retrofit mechanism for retrofitting the angles of the two sets of screw locking mechanisms and a distance retrofit mechanism for retrofitting the distance between the two sets of screw locking mechanisms, the two sets of screw locking mechanisms are installed on the distance retrofit mechanism, and the distance retrofit mechanism is installed on the angle retrofit mechanism. Compared with the prior art, the device has the advantages of rapid product retrofitting, economy and reliability, strong expandability and good universality.

Description

TECHNICAL FIELD

[0001] The present application relates to a screw locking mechanism retrofitting mechanism, in particular to a screw locking mechanism retrofitting device for simultaneously installing diagonal screws for a product. BACKGROUND

[0002] Industrial products often use screws for fastening connection, and many products use two screws diagonally fastened. In order to save screw locking time and eliminate the phenomenon that the two fastened parts are angularly misaligned due to torque at the moment when the first screw is completely tightened during sequential tightening of a single screw, two sets of automatic screw feeding and tightening mechanisms are usually used to simultaneously act and simultaneously tighten in place.

[0003] For products of the same series, due to different product specifications, the hole distance of the two diagonally installed screws will be different. The two screw connecting lines are usually symmetrically installed with the product center, and the difference in hole distance is often accompanied by an angle difference between the two screw connecting lines of different products. Due to the difference in screw hole position, multiple products are produced on the same production line, and the screw mechanism needs to be moved every time the product is changed to adapt to the new product. The traditional retrofitting method generally adopts the method of removing the two original screw mechanisms and reinstalling them at the new installation position, or simply arranging multiple sets of screw locking equipment for different products. This brings problems such as long retrofitting time, complex operation, or the need for more equipment investment.

[0004] In addition, when locking the screw product, in order to avoid defects such as product warping and screw skewing, the product needs to be pressed from the center first. Due to the need for product retrofitting, the pressing position of different products needs to be avoided due to the need to avoid the screw mechanism, and sometimes it is difficult to be compatible with the product, so the pressing mechanism also needs to be retrofitted and time-consuming and laborious. SUMMARY

[0005] The purpose of the present application is to overcome the defects of the prior art and provide a screw locking mechanism retrofitting device for simultaneously installing diagonal screws for a product, which is rapid, economical, reliable, highly expandable, and has good versatility.

[0006] The purpose of the present application can be achieved by the following technical solutions:

[0007] A screw locking mechanism retrofitting device for simultaneously installing diagonal screws for a product, the device is provided with two sets of screw locking mechanisms, the retrofitting device includes an angle retrofitting mechanism for retrofitting the angle of the two sets of screw locking mechanisms and a distance retrofitting mechanism for retrofitting the distance between the two sets of screw locking mechanisms; the two sets of screw locking mechanisms are installed on the distance retrofitting mechanism; and the distance retrofitting mechanism is installed on the angle retrofitting mechanism.

[0008] Preferably, the angle conversion mechanism comprises a support column, an angle adjustment base plate, an arc clamping groove, a quick screw rod and an angle positioning unit; the angle adjustment base plate is installed on the support column; the arc clamping groove is arranged on the angle adjustment base plate, and a plurality of threaded holes for fixing the distance conversion mechanism are arranged on the arc clamping groove; the quick screw rod is matched with the threaded hole; the angle positioning unit is fixed on the angle adjustment base plate, and the number of the angle positioning unit is a plurality, and the positions of the angle positioning unit correspond to the positions of the threaded holes on the arc clamping groove.

[0009] More preferably, the angle positioning unit comprises a pin positioning block, a positioning pin and a proximity sensor for detecting whether the positioning pin is inserted; the pin positioning block is provided with a pin hole, and the positioning pin is installed in the pin hole; the proximity sensor is installed on the pin positioning block.

[0010] More preferably, the number of the angle adjustment base plate and the arc clamping groove is two, each angle adjustment base plate and arc clamping groove constitutes an angle conversion unit, and the two angle conversion units are arranged on the support column in the vertical direction.

[0011] More preferably, the distance conversion mechanism comprises a distance adjustment mechanism base plate, a linear guide rail, a first sliding block, a second sliding block, a distance conversion plate and a rotating plate; the linear guide rail and the rotating plate are respectively fixed on the two sides of the distance adjustment mechanism base plate; the rotating plate is in sliding connection with the arc clamping groove, and the rotating plate is fixed on the arc clamping groove through the quick screw rod; the first sliding block and the second sliding block are respectively in sliding connection with the linear guide rail; two sets of screw locking mechanisms are respectively installed on the first sliding block and the second sliding block; the distance conversion plate is installed on the distance adjustment mechanism base plate through a flat key; the distance conversion plate is provided with two pin holes with a predetermined interval, and the two sets of screw locking mechanisms are respectively provided with screw tightening assemblies, and the two sets of screw locking mechanisms are respectively fixedly connected with the distance conversion plate in a manner that the screw tightening assemblies are matched with the pin holes.

[0012] More preferably, the distance conversion mechanism is provided with a code identifier for identifying the model of the distance conversion plate; the code identifier is installed on the rotating plate, and an automatic detection end of the code identifier is aligned with the distance conversion plate.

[0013] More preferably, the number of the linear guide rail, the first sliding block, the second sliding block and the rotating plate is the same as the number of the angle adjustment base plate, and the number of the linear guide rail, the first sliding block, the second sliding block and the rotating plate is two, and each rotating plate is connected with the angle adjustment base plate of the corresponding height.

[0014] More preferably, the distance conversion mechanism is provided with a product pressing structure; and the product pressing structure is fixed on the distance adjustment mechanism base plate.

[0015] More preferably, the product pressing structure comprises a product pressing cylinder, a support plate and a floating pressing head; the product pressing cylinder is fixed on the distance adjusting mechanism base plate; the support plate is connected with the output shaft of the product pressing cylinder; and the floating pressing head is fixed on the support plate and its position corresponds to the product center position.

[0016] More preferably, the floating pressing head adopts a floating structure matched with a guide key and a spring.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] I. Rapid product model change: the model changing device in the present application can achieve the purpose of rapid model change through the replacement of the model changing plate and the pin hole, and the operation can be easily completed in 5 minutes. The model changing device can automatically identify the model changed on the machine through the cooperation of the 8421 code and the detection of the pin, thereby avoiding the installation errors caused by manual operation.

[0019] II. Economic and reliable: the model changing device in the present application has a simple structure, adopts a linear guide to bear two sets of screw locking mechanisms, and has stable linear motion adjustment and economic and practical angle adjustment through the cooperation of the circular arc groove.

[0020] III. Strong expandability: the model changing device in the present application can be compatible with different distance model changing tool plates and new pin holes by increasing the distance model changing tool plates and the new pin holes in view of the increase of subsequent products.

[0021] IV. Good universality: the model changing device in the present application can always keep the product center position consistent through the overall rotation of the two screw mechanisms and the symmetrical installation and adjustment of the product center position. Whether the distance is adjusted or the angle is adjusted, the pressing mechanism can follow and avoid the screw mechanism, and one set of pressing mechanism can meet the pressing requirements of all products. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic view of the overall structure of the model changing device in the present application.

[0023] Figure 2 It is a schematic view of the overall structure of the angle model changing mechanism and the distance model changing mechanism in the present application.

[0024] Figure 3 It is a schematic view of the distance model changing mechanism in the present application.

[0025] Figure 4 It is a schematic view of the screw locking mechanism installed on the distance model changing mechanism in the present application.

[0026] The symbols in the drawings represent:

[0027] 1. Screw locking mechanism, 2. Angle model changing mechanism, 3. Distance model changing mechanism.

[0028] 201, support column, 202, angle adjustment base plate, 203, circular arc clamping groove, 204, quick screw, 205, bolt positioning block, 206, positioning bolt, 207, proximity sensor;

[0029] 301, distance adjustment mechanism base plate, 302, linear guide rail, 303, first sliding block, 304, second sliding block, 305, distance conversion plate, 306, rotating plate, 307, code identifier, 308, product pressing cylinder, 309, support plate, 310, floating pressing head, 311, angle conversion positioning block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0031] A conversion device for simultaneously installing diagonal screws on a screw locking mechanism for a product, the device is provided with two sets of screw locking mechanisms 1, the structure of which is shown in Figure 1 The conversion device includes an angle conversion mechanism 2 for converting the angle of the two sets of screw locking mechanisms 1 and a distance conversion mechanism 3 for converting the distance between the two sets of screw locking mechanisms 1, the two sets of screw locking mechanisms 1 are installed on the distance conversion mechanism 3, and the distance conversion mechanism 3 is installed on the angle conversion mechanism 2.

[0032] The two main mechanisms will be described in detail below:

[0033] I. Angle conversion mechanism 2

[0034] The structure of the angle conversion mechanism 2 is shown in Figure 2 It includes a support column 201, an angle adjustment base plate 202, a circular arc clamping groove 203, a quick screw 204, and an angle positioning unit, the angle adjustment base plate 202 is installed on the support column 201, the circular arc clamping groove 203 is arranged on the angle adjustment base plate 202, a plurality of threaded holes for fixing the distance conversion mechanism 3 are arranged on the circular arc clamping groove 203, the quick screw 204 is matched with the threaded holes, the angle positioning unit is fixed on the angle adjustment base plate 202, and the position corresponds to the position of the threaded holes on the circular arc clamping groove 203.

[0035] The angle positioning unit includes a bolt positioning block 205, a positioning bolt 206, and a proximity sensor 207 for detecting whether the positioning bolt 206 is inserted, the bolt positioning block 205 is provided with a pin hole, the positioning bolt 206 is installed in the pin hole, and the proximity sensor 207 is installed on the bolt positioning block 205.

[0036] The angle adjustment substrate 202 and the circular arc clamping groove 203 are two in number, each of the angle adjustment substrate 202 and the circular arc clamping groove 202 constitutes an angle conversion unit, and the two angle conversion units are arranged in a vertical direction on the support column 201.

[0037] The angle conversion mechanism is a base mechanism of the adjustment mechanism and is installed on the equipment table panel. When a new product needs to be screwed by the station while two screws are connected with the original product at an angle, the angle conversion mechanism needs to be adjusted, six quick twist screws are manually loosened, the positioning pin is pulled out, the distance conversion mechanism is pushed to rotate to a new angle, the pin is inserted into a new hole to reposition the mechanism to a new position, and finally the six quick twist screws are tightened to complete the angle conversion. The equipment automatically identifies through the proximity sensor which angle hole the pin is inserted into, so as to check whether the angle conversion is correct.

[0038] II. Distance conversion mechanism 3

[0039] The structure of the distance conversion mechanism 3 is shown in Figure 3 and Figure 4 , which includes a distance adjustment mechanism substrate 301, a linear guide rail 302, a first sliding block 303, a second sliding block 304, a distance conversion plate 305, and a rotating plate 306. The linear guide rail 302 and the rotating plate 306 are fixed on both sides of the distance adjustment mechanism substrate 301 respectively. The rotating plate 306 is slidably connected with the circular arc clamping groove 203, and is fixed on the circular arc clamping groove 203 through the quick twist screw 204. The rotating plate 306 cooperates with the circular arc clamping groove 203 to realize angle conversion. The first sliding block 303 and the second sliding block 304 are slidably connected with the linear guide rail 302 respectively. Two sets of screw locking mechanisms 1 are installed on the first sliding block 303 and the second sliding block 304 respectively. The distance conversion plate 305 is installed on the distance adjustment mechanism substrate 301 through a flat key. The distance conversion plate 305 is provided with two pin holes with a predetermined distance. Two sets of screw locking mechanisms 1 are fixedly connected with the distance conversion plate 305 through the pin and the pin hole.

[0040] The distance conversion mechanism 3 is provided with an angle conversion positioning block 311, which is fixed on the rotating plate 306. The angle conversion positioning block 311 is matched with the pin positioning block 205. The positioning pin 206 fixes the angle conversion positioning block 311 and the pin positioning block 205 together.

[0041] The distance conversion mechanism 3 is provided with a code identifier 307 for identifying the model of the distance conversion plate 305. The code identifier 307 is installed on the rotating plate 306. The automatic detection end of the code identifier 307 is aligned with the distance conversion plate 305.

[0042] The number and angle of the linear guide rail 302, the first slider 303, the second slider 304 and the rotary plate 306 are the same as the number of the angle adjustment base plate 202, and each rotary plate 306 is connected with the corresponding angle adjustment base plate 202 of the same height.

[0043] The distance conversion mechanism 3 is provided with a product pressing structure fixed on the distance adjustment mechanism base plate 301. The product pressing structure includes a product pressing cylinder 308, a support plate 309 and a floating pressing head 310. The product pressing cylinder 308 is fixed on the distance adjustment mechanism base plate 301, the support plate 309 is connected with the output shaft of the product pressing cylinder 308, and the floating pressing head 310 is fixed on the support plate 309 and corresponds to the product center position. The floating pressing head 310 adopts a floating structure of a guide key matched with a spring

[0044] The distance conversion mechanism is installed on the angle conversion mechanism and positioned through circular arc clamping grooves. Six quick screw rods connect and fasten the two sets of screw locking mechanisms. When the distance is adjusted, the screw tightening assembly and the distance conversion block positioning pin are pulled out, the distance conversion block is removed and replaced with a new type of distance conversion block. The new type of distance conversion block is connected with the distance adjustment mechanism base plate through a flat key to ensure the relative distance of the two sets of screw tightening assemblies and the relative position of the positioning screw assembly and the base plate.

[0045] The product pressing cylinder is directly connected with the distance adjustment base plate. When the distance is adjusted, the product pressing mechanism is not affected and the position remains unchanged. When the angle is rotated and adjusted, the center of the floating pressing head of the product pressing mechanism coincides with the rotation center. The position does not change during rotation. The cantilever of the pressing mechanism rotates with the distance adjustment base plate and always avoids the two sets of screw tightening assemblies. Therefore, the floating pressing mechanism can be used in the conversion process.

[0046] The working principle of the above-mentioned conversion device is as follows:

[0047] For the change of the hole distance of the two screw holes, two sets of screw locking mechanisms are installed on two horizontal linear guide rails. The relative distance of the two sets of screw locking mechanisms is adjusted through the switching of the distance conversion plate. The distance conversion plate and the screw machine are connected and positioned through conversion pins. Different conversion plates are automatically recognized by the machine in the mode of 8421 coding.

[0048] The angle conversion mechanism is provided with a circular arc clamping groove. When adjusted, the locking nut is loosened, the distance conversion mechanism is manually rotated to the corresponding angle, then the mechanism is repositioned through the insertion of the pin, and finally the quick screw rod is restored to achieve the purpose of angle conversion. Different products have the same pin hole corresponding to the angle. Each pin hole side has a proximity sensor. The proximity sensor detects the actual inserted pin hole to automatically identify the current angle of the machine.

[0049] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A retrofit device for simultaneously installing diagonal screws for screw locking mechanisms for products, the device having two sets of screw locking mechanisms (1) installed thereon, characterized in that, The shape changing device is always consistent in the product center position due to the overall rotation of the two screw mechanisms and the symmetric installation adjustment, and the compression mechanism can follow and avoid the screw mechanism no matter the distance adjustment or the angle adjustment; The shape changing device includes an angle changing mechanism (2) for changing the angle of the two screw locking mechanisms (1) and a distance changing mechanism (3) for changing the distance between the two screw locking mechanisms (1); the two screw locking mechanisms (1) are installed on the distance changing mechanism (3); the distance changing mechanism (3) is installed on the angle changing mechanism (2); The angle changing mechanism (2) includes a support column (201), an angle adjustment base plate (202), an arc clamping groove (203), a quick screw rod (204) and an angle positioning unit; the angle adjustment base plate (202) is installed on the support column (201); the arc clamping groove (203) is arranged on the angle adjustment base plate (202), and a plurality of threaded holes for fixing the distance changing mechanism (3) are arranged on the arc clamping groove (203); the quick screw rod (204) is matched with the threaded hole; the angle positioning unit is fixed on the angle adjustment base plate (202) and has a plurality of angle positioning units, and the positions of the angle positioning units correspond to the positions of the threaded holes on the arc clamping groove (203); the angle positioning unit includes a bolt positioning block (205), a positioning bolt (206) and a proximity sensor (207) for detecting whether the positioning bolt (206) is inserted; the bolt positioning block (205) is provided with a pin hole, and the positioning bolt (206) is installed in the pin hole; the proximity sensor (207) is installed on the bolt positioning block (205); The distance conversion mechanism (3) comprises a distance adjustment mechanism base plate (301), a linear guide rail (302), a first slider (303), a second slider (304), a distance conversion plate (305) and a rotating plate (306); the linear guide rail (302) and the rotating plate (306) are fixed on the two sides of the distance adjustment mechanism base plate (301) respectively; the rotating plate (306) is slidably connected with the circular arc clamping groove (203), and is fixed on the circular arc clamping groove (203) through the quick screw rod (204); the first slider (303) and the second slider (304) are slidably connected with the linear guide rail (302) respectively; the two sets of screw locking mechanisms (1) are installed on the first slider (303) and the second slider (304) respectively; the distance conversion plate (305) is installed on the distance adjustment mechanism base plate (301) through a flat key; the distance conversion plate (305) is provided with two pin holes with a predetermined distance, and the two sets of screw locking mechanisms (1) are respectively provided with screw tightening assemblies, and the two sets of screw locking mechanisms (1) are fixedly connected with the distance conversion plate (305) through the screw tightening assemblies and the pin holes in a matched mode; the distance conversion mechanism (3) is provided with a code identifier (307) for identifying the model of the distance conversion plate (305); the code identifier (307) is installed on the rotating plate (306), and an automatic detection end of the code identifier (307) is aligned with the distance conversion plate (305); The distance conversion mechanism (3) is provided with a product pressing structure; the product pressing structure is fixed on the distance adjustment mechanism base plate (301); the product pressing structure comprises a product pressing cylinder (308), a support plate (309) and a floating pressing head (310); the product pressing cylinder (308) is fixed on the distance adjustment mechanism base plate (301); the support plate (309) is connected with an output shaft of the product pressing cylinder (308); the floating pressing head (310) is fixed on the support plate (309), and the position of the floating pressing head (310) corresponds to the center position of the product.

2. A retrofit kit for a screw locking mechanism for simultaneously installing diagonal screws in a product according to claim 1, characterized in that The number of the angle adjustment base plates (202) and the circular arc clamping grooves (203) is two, and each angle adjustment base plate (202) and circular arc clamping groove (203) constitutes an angle conversion unit, and the two angle conversion units are arranged in a vertical direction on the support column (201).

3. A retrofit kit for a screw locking mechanism for simultaneously installing diagonal screws in a product according to claim 1, characterized in that, The number of the linear guide rails (302), the first sliders (303), the second sliders (304) and the rotating plates (306) is the same as that of the angle adjustment base plates (202), and is two, and each rotating plate (306) is connected with the angle adjustment base plate (202) of the corresponding height.

4. A retrofit kit for a screw locking mechanism for simultaneously installing diagonal screws in a product according to claim 1, characterized in that, The floating pressing head (310) adopts a floating structure of a guide key matched with a spring.

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