Double-open linkage pressing device for hinge production

Abstract

The utility model relates to the technical field of hinge production, in particular to a double-open linkage press-fit device for hinge production, which comprises a rack, a positioning component and a press-fit component, the positioning component is provided with a pin shaft positioning part, and the pin shaft positioning part is used for accommodating and positioning a pin shaft of a hinge; the press-fit assembly is provided with a side face press-fit part and a top face press-fit part, and the side face press-fit part is used for abutting against the support part of the hinge. The top surface pressing part is provided with a downward pressing insertion block and a transverse sliding block, and the transverse sliding block is movably connected to the pin shaft positioning part and abuts against a pin shaft of the hinge; the inserting block is pressed downwards to drive the transverse sliding block, so that the transverse sliding block moves transversely, and the pin shaft is pressed into the support part of the hinge. In conclusion, by adopting the double-acting switch linkage design, the hinge product is ensured to be positioned on the jig before being pressed, so that the product is prevented from being crushed or personnel are prevented from being accidentally injured. And moreover, the pin shaft pressing device is simple in structure, convenient to operate and high in practicability, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinge production, in particular to a double-opening linkage pressing device used for hinge production. Background Art

[0002] In daily life or work, we often encounter situations where a box is needed for storage, and the box usually has a cover, which is connected to the box by a hinge. For example, the armrest box of a car is an item connected by a hinge. The hinge usually has an upper bracket, a lower bracket, a pin and a torsion spring, and the pin plays the role of threading other parts. In production, the bracket needs to be pressed onto the pin to form an interference fit. In the pressing process, a pressing jig is needed.

[0003] A fixture is a large category of tools for carpentry, ironwork, fitter, machinery, electronic control and other handicrafts. It is mainly used as a tool to assist in controlling position or movement. Fixtures can be divided into three categories: process assembly fixtures, project test fixtures and circuit board test fixtures.

[0004] In addition, the commonly used pneumatic pressing fixtures are simple, convenient and flexible in structure, which can improve production efficiency and reduce production costs. They are an important part of standardized operations and are suitable for large-scale and standardized production of products.

[0005] However, most of the pneumatic pressing fixtures in the existing industry are single-way switches, which are pressed in one direction, are relatively unsafe and have a single direction. Therefore, it is particularly necessary to develop a pneumatic double-opening linkage pressing fixture to meet the production requirements of hinge products. Utility Model Content

[0006] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0007] The utility model provides a double-opening linkage pressing device for hinge production, comprising a frame and a positioning assembly and a pressing assembly installed on the frame, wherein the positioning assembly is provided with a pin shaft positioning portion, the pin shaft positioning portion is used to accommodate the pin shaft of the hinge and form a positioning operation for the pin shaft; the pressing assembly is provided with a side pressing portion and a top surface pressing portion, the side pressing portion is used to abut against a bracket portion of the hinge; the top surface pressing portion is provided with a pressing block and a transverse slider, the transverse slider is movably connected to the pin shaft positioning portion and abuts against the pin shaft of the hinge; the pressing block is fixedly connected to the driving end of the top surface pressing portion, so that it is driven to move downward, thereby driving the transverse slider to cause it to move transversely and press the pin shaft into the bracket portion of the hinge.

[0008] As a further solution of the utility model: the pin shaft positioning portion is provided with a first positioning portion and a second positioning portion, which are respectively used to position the first pin shaft and the second pin shaft of the hinge; the transverse slider is provided with a first slider and a second slider, which are respectively used to abut the first pin shaft and the second pin shaft; one end of the first slider abuts the second slider, and the other end thereof is slidably connected to the first positioning portion, and one end of the second slider abuts the first slider, and the other end thereof is slidably connected to the second positioning portion; the push-down plug block is provided with a first inclined surface and a second inclined surface, the first inclined surface can abut the passive inclined surface of the first slider, and the second inclined surface can abut the passive inclined surface of the second slider.

[0009] As a further solution of the utility model: the top surface pressing part is also provided with a pressing cylinder, a pressing slider and a pressing slide rail, the pressing cylinder and the pressing slide rail are respectively fixed to the frame, the pressing slider and the pressing slide rail cooperate with each other to form a sliding connection, and one side of the pressing slider is fixed to the driving end of the pressing cylinder, and the other side is fixed to the pressing plug block, so that the pressing cylinder is operated to drive the pressing slider to move downward along the pressing slide rail, and at the same time drive the pressing plug block to move downward synchronously.

[0010] As a further solution of the utility model: the side pressing part is provided with a first cylinder, a first pressure block, a second cylinder and a second pressure block, the first cylinder and the second cylinder are respectively fixed to the two sides of the frame, the first pressure block is fixed to the driving end of the first cylinder, so that the first pressure block abuts against the first arm of the hinge bracket; the second pressure block is fixed to the driving end of the second cylinder, so that the second pressure block abuts against the second arm of the hinge bracket.

[0011] As a further solution of the utility model: the positioning assembly is further provided with a first auxiliary frame, the first auxiliary frame is fixed to the frame and assists in positioning the lower bracket of the hinge so that the lower bracket maintains a preset position.

[0012] As a further solution of the utility model: the positioning assembly is also provided with a positioning cylinder, a positioning guide block and a positioning slide rail, the positioning cylinder and the positioning slide rail are respectively fixed to the frame, the positioning guide block and the positioning slide rail cooperate with each other to form a sliding connection, one end of the positioning guide block is fixed to the driving end of the positioning cylinder, and the other end thereof can abut against the lower bracket of the hinge, so that the lower bracket is stably pressed on the first auxiliary frame.

[0013] As a further solution of the utility model: the positioning assembly is further provided with a positioning needle, the positioning needle is fixedly connected to one end of the positioning guide block abutting against the lower bracket, and the positioning needle is used to guide and position the lower bracket.

[0014] As a further solution of the utility model: the positioning assembly is further provided with a second auxiliary frame, the second auxiliary frame is fixed to the frame and assists in positioning the upper bracket of the hinge so that the upper bracket maintains a preset position.

[0015] As a further solution of the utility model: the positioning assembly is also provided with a positioning switch, and the positioning switch is used to start the positioning cylinder, so as to align the lower bracket of the hinge and press it onto the first auxiliary bracket.

[0016] As a further solution of the utility model: the pressing assembly is also provided with a pressing switch, and the pressing switch is used to start the first cylinder, the second cylinder and the downward pressing cylinder, so as to press the pin shaft of the hinge into the through hole of the upper bracket to form a fixed connection.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By setting a downward pressing block and a horizontal slider, the inclined surfaces on both sides of the downward pressing block can be used to drive the first slider and the second slider at the same time, so that the two sliders can simultaneously squeeze the pin shaft in the left and right directions, so that the two pin shafts are respectively pressed into the two arms of the bracket to complete the pressing operation. In addition, the pressing speed is fast and the fixed connection effect after pressing is good.

[0019] 2. A first positioning portion and a second positioning portion may be provided respectively to position the first pin shaft and the second pin shaft respectively, and the first slider and the second slider may be movably connected to the two positioning portions respectively, so that the transverse slider may press the pin shaft more smoothly and accurately, thereby improving the accuracy of the pressing.

[0020] 3. Two switches are also set to control the positioning assembly and the pressing assembly respectively. After the hinge is placed in the positioning assembly, the positioning switch needs to be turned on first, and the positioning guide block is used to align and press the lower bracket of the hinge onto the first auxiliary frame. Only then can the pressing switch be pressed normally, so that the side pressing part first presses the bracket sideways, and then the top pressing part drives the pressing block to move downward, and drives the horizontal slider to move to both sides, and then presses the pin shaft into the through hole of the bracket to form an interference fit.

[0021] Through the above improvements, the utility model can provide a double-open linkage pressing device for hinge production, which adopts the concept of double-action switch linkage design, and ensures that the hinge product is positioned on the fixture before the hinge product is pressed, so as to prevent the hinge product from being crushed or the operator from being accidentally injured. It also enables the hinge pin to be pressed on the bracket accurately and quickly, and has a simple structure, convenient operation and strong practicality, which greatly improves work efficiency.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a schematic diagram of the overall structure of the switch and control box of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the top surface pressing part of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the side pressing part of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the first auxiliary frame and the second auxiliary frame of the utility model;

[0028] Figure 5 It is a structural schematic diagram of a positioning guide block and a positioning needle of the utility model.

[0029] The reference numerals and names in the figures are as follows:

[0030] 10 rack; 11 positioning switch; 12 pressing switch; 13 emergency stop switch; 14 control box; 20 positioning assembly; 21 pin positioning part; 22 first positioning part; 23 second positioning part; 24 first auxiliary frame; 25 positioning cylinder; 26 positioning guide block; 27 positioning slide rail; 28 positioning pin; 29 second auxiliary frame; 30 pressing assembly; 31 side pressing part; 32 first cylinder; 33 first pressing block; 34 second cylinder; 35 second pressing block; 40 top pressing part; 41 pressing cylinder; 42 pressing slider; 43 pressing slide rail; 44 pressing block; 45 first inclined surface; 46 second inclined surface; 50 horizontal slider; 51 first slider; 52 second slider; 53 passive inclined surface; 60 hinge; 61 upper bracket; 62 lower bracket; 63 first pin; 64 second pin; 65 first support arm; 66 second support arm. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 5 In the embodiment of the utility model, a double-open linkage pressing device for the production of hinge 60 includes a frame 10 and a positioning assembly 20 and a pressing assembly 30 installed on the frame 10, wherein the positioning assembly 20 is provided with a pin shaft positioning portion 21, and the pin shaft positioning portion 21 is used to accommodate the pin shaft of the hinge 60 and form a positioning operation for the pin shaft; the pressing assembly 30 is provided with a side pressing portion 31 and a top pressing portion 40, and the side pressing portion 31 is used to abut against the bracket portion of the hinge 60; the top pressing portion 40 is provided with a downward pressing block 44 and a horizontal slider 50, and the horizontal slider 50 is movably connected to the pin shaft positioning portion 21 and abuts against the pin shaft of the hinge 60; the downward pressing block 44 is fixedly connected to the driving end of the top pressing portion 40, so that it is driven to move downward, thereby driving the horizontal slider 50 to cause it to move horizontally and press the pin shaft into the bracket portion of the hinge 60.

[0033] Specifically, most of the pneumatic pressing fixtures in the existing industry are single-way switches, which are operated in one direction, are relatively unsafe and have a single direction. Therefore, it is necessary to develop a pneumatic double-open linkage pressing fixture to meet the production requirements of hinge 60 products. The utility model adopts a double-action switch linkage design as the concept to ensure that the hinge 60 product is positioned on the fixture before the hinge 60 product is pressed to prevent the hinge 60 product from being crushed or accidentally injuring the operator.

[0034] Secondly, the lower bracket 62 of the armrest hinge 60 can be placed on the fixture first, and the positioning switch 11 is activated. The positioning cylinder 25 pushes the positioning guide block 26 to align and press the lower bracket 62 on the first auxiliary frame 24. Subsequently, the upper bracket 61 of the armrest hinge 60 can be placed, and the two arms of the upper bracket 61 are respectively inserted into the ends of the pin shaft, and then the pressing switch 12 is activated. The first cylinder 32 and the second cylinder 34 on the left and right sides first squeeze the upper bracket 61 toward the middle at the same time, and form support and limit for the upper bracket 61. Then the upper pressing cylinder 41 is operated, and then the pressing plug 44 is pushed downward. The pressing plug 44 pushes the horizontal slider 50 to slide to both sides to squeeze the pin shaft, thereby pressing the pin shaft into the preset through hole of the upper bracket 61. After the pressing is completed, all cylinders automatically retract and return to their original positions, so as to facilitate the removal of the pressed hinge 60 product.

[0035] Thirdly, the utility model has a simple structure, is easy to operate and has strong practicality, thus greatly improving work efficiency.

[0036] like Figures 2 to 4 As shown, preferably, the pin shaft positioning portion 21 is provided with a first positioning portion 22 and a second positioning portion 23, which are respectively used to perform positioning operations on the first pin shaft 63 and the second pin shaft 64 of the hinge 60; the transverse slider 50 is provided with a first slider 51 and a second slider 52, which are respectively used to abut the first pin shaft 63 and the second pin shaft 64; one end of the first slider 51 abuts the second slider 52, and the other end thereof is slidably connected to the first positioning portion 22, and one end of the second slider 52 abuts the first slider 51, and the other end thereof is slidably connected to the second positioning portion 23; the push-down plug block 44 is provided with a first inclined surface 45 and a second inclined surface 46, the first inclined surface 45 can abut the passive inclined surface 53 of the first slider 51, and the second inclined surface 46 can abut the passive inclined surface 53 of the second slider 52.

[0037] Specifically, when the pressing insert 44 moves downward, the first inclined surface 45 and the second inclined surface 46 respectively abut against the passive inclined surface 53 of the first slider 51 and the passive inclined surface 53 of the second slider 52, thereby causing the first slider 51 and the second slider 52 to move to both sides at the same time, and to squeeze the pin shaft, causing it to move to both sides by a certain distance synchronously, so that the pin shaft can be inserted into the corresponding through hole of the bracket, completing the pressing operation of the pin shaft and the bracket. In addition, a spring (not shown in the figure) can be provided between the first slider 51 and the first positioning portion 22, and similarly, a spring (not shown in the figure) can be provided between the second slider 52 and the second positioning portion 23, so that after the pressing insert 44 moves upward, the first slider 51 and the second slider 52 can be restored to the initial position under the elastic force of the spring, that is, the state where the first slider 51 and the second slider 52 abut against each other, thereby facilitating the removal of the hinge 60 and the placement of the next hinge 60.

[0038] like Figure 2 and Figure 3 As shown, preferably, the top surface pressing portion 40 is also provided with a pressing cylinder 41, a pressing slider 42 and a pressing slide rail 43, the pressing cylinder 41 and the pressing slide rail 43 are respectively fixed to the frame 10, the pressing slider 42 and the pressing slide rail 43 cooperate with each other to form a sliding connection, and one side of the pressing slider 42 is fixed to the driving end of the pressing cylinder 41, and the other side thereof is fixed to the pressing plug block 44, so that the pressing cylinder 41 is operated to drive the pressing slider 42 to move downward along the pressing slide rail 43, and at the same time drive the pressing plug block 44 to move downward synchronously.

[0039] Specifically, in order to improve the stability of the pressing block 44, it is preferred to set pressing rails 43 on both sides of the frame 10, and add multiple layers of pressing sliders 42, so that both ends of the pressing sliders 42 are respectively slidably connected to the pressing rails 43, so that the relatively thick pressing sliders 42 can generate stable sliding, so that the pressing block 44 can move downward stably and accurately, thereby driving the lateral sliders 50 to move to both sides.

[0040] like Figure 2 and Figure 3 As shown, preferably, the side pressing portion 31 is provided with a first cylinder 32, a first pressing block 33, a second cylinder 34 and a second pressing block 35, the first cylinder 32 and the second cylinder 34 are respectively fixed to the two sides of the frame 10, the first pressing block 33 is fixed to the driving end of the first cylinder 32, and the second pressing block 35 is fixed to the driving end of the second cylinder 34, so that the first pressing block 33 abuts against the first arm 65 of the hinge 60 bracket, and the second pressing block 35 abuts against the second arm 66 of the hinge 60 bracket.

[0041] Specifically, the first pressing block 33 can be driven by the first cylinder 32 to move horizontally for a certain distance to abut against the first arm 65 of the hinge 60 bracket and form a limiting effect; and similarly, the second pressing block 35 can be driven by the second cylinder 34 to move horizontally for a certain distance to abut against the second arm 66 of the hinge 60 bracket and form a limiting effect. Preferably, the first cylinder 32 and the second cylinder 34 can keep synchronous operation, so that the first pressing block 33 and the second pressing block 35 can abut against the hinge 60 at the same time.

[0042] like Figure 4 As shown, preferably, the positioning assembly 20 is further provided with a first auxiliary frame 24, which is fixed to the frame 10 and assists in positioning the lower bracket 62 of the hinge 60 so that the lower bracket 62 maintains a preset position.

[0043] Specifically, since the lower bracket 62 and the pin shaft are pre-assembled, after the pin shaft is accommodated and positioned, in order to prevent the pre-assembled part from changing or deforming, it is preferred to provide a first auxiliary frame 24 to perform auxiliary positioning operations on the lower bracket 62 .

[0044] like Figure 4 and Figure 5As shown, preferably, the positioning assembly 20 is further provided with a positioning cylinder 25, a positioning guide block 26 and a positioning slide rail 27. The positioning cylinder 25 and the positioning slide rail 27 are respectively fixed to the frame 10, and the positioning guide block 26 and the positioning slide rail 27 cooperate with each other to form a sliding connection. One end of the positioning guide block 26 is fixed to the driving end of the positioning cylinder 25, and the other end thereof can abut against the lower bracket 62 of the hinge 60, so that the lower bracket 62 is stably pressed against the first auxiliary frame 24. The positioning assembly 20 is also provided with a positioning pin 28, which is fixed to one end of the positioning guide block 26 abutting against the lower bracket 62, and the positioning pin 28 is used to guide and position the lower bracket 62.

[0045] Specifically, in order to ensure that the hinge 60 product is positioned on the jig before the hinge 60 product is pressed, so as to prevent the hinge 60 product from being crushed or the operator from being accidentally injured, a positioning guide block 26 can be provided to guide the lower bracket 62 of the hinge 60 and press it against the first auxiliary frame 24. In order to make the movement of the positioning guide block 26 smoother and more stable, a positioning slide rail 27 can also be provided, and the positioning slide rail 27 can be used to guide and limit the positioning guide block 26 so that it can move stably.

[0046] Secondly, when the positioning guide block 26 is driven to move a certain distance and abuts against the lower bracket 62, the positioning pin 28 can pass through the through hole on the lower bracket 62 corresponding to the positioning pin 28, thereby guiding the lower bracket 62, thereby ensuring that the position where the lower bracket 62 abuts against the first auxiliary bracket 24 is in the correct preset position. Accordingly, a gap corresponding to the positioning pin 28 can also be set on the first auxiliary bracket 24 to facilitate avoiding the positioning pin 28.

[0047] like Figure 4 As shown, preferably, the positioning assembly 20 is further provided with a second auxiliary frame 29, which is fixed to the frame 10 and assists in positioning the upper bracket 61 of the hinge 60 so that the upper bracket 61 maintains a preset position.

[0048] Specifically, since the upper bracket 61 of the hinge 60 is placed after the hinge 60 is placed, and the through holes of the two arms of the upper bracket 61 need to be inserted into the end of the hinge 60, a second auxiliary frame 29 can be set to support and position the upper bracket 61 so that the upper bracket 61 can be better inserted into the hinge 60.

[0049] like Figure 1As shown, preferably, the positioning assembly 20 is further provided with a positioning switch 11, and the positioning switch 11 is used to start the positioning cylinder 25, so as to align the lower bracket 62 of the hinge 60 and press it onto the first auxiliary frame 24. The pressing assembly 30 is further provided with a pressing switch 12, and the pressing switch 12 is used to start the first cylinder 32, the second cylinder 34 and the pressing cylinder 41, so as to press the pin of the hinge 60 into the through hole of the upper bracket 61 to form a fixed connection.

[0050] In addition, an emergency stop switch 13 may be provided to stop the device in time when an unexpected situation occurs, thereby ensuring the safety of personnel. A control electric box 14 may also be provided to control the operation of the cylinder using a solenoid valve (not shown) in the control electric box 14.

[0051] When in use, the specific operating steps are 1: Place the armrest hinge 60 lower bracket 62 assembly into the fixture, fix the pin of the hinge 60 in the pin positioning part 21, and then start the positioning switch 11, so that the positioning cylinder 25 pushes the positioning guide block 26 forward to move along the positioning slide rail 27, thereby guiding and tightening the lower bracket 62 of the hinge 60 product.

[0052] Operation step 2: Place the upper bracket 61 of the armrest hinge 60 into the device, and place the plate-shaped part of the upper bracket 61 on the second auxiliary frame 29, and insert the first arm 65 and the second arm 66 into the ends of the first pin shaft 63 and the second pin shaft 64 respectively, forming a state to be pressed.

[0053] Operation step 3: Start the pressing switch 12, the first cylinder 32 and the second cylinder 34 on the left and right sides first squeeze the lower bracket 62 towards the middle at the same time, and form a limit effect on it. Then the upper pressing cylinder 41 pushes the pressing slider 42 to move downward along the pressing slide rail 43, so that the pressing plug 44 moves downward synchronously, and then pushes the horizontal slider 50 to slide to both sides to squeeze the pin shaft, so as to press the pin shaft into the preset through hole of the upper bracket 61. After the pressing is completed, all cylinders automatically retract and return to their original positions, so as to facilitate the removal of the pressed hinge 60 product.

[0054] In particular, the pressing switch 12 of the starting device will only be effective after the hinge 60 product is positioned on the fixture, otherwise it will be invalid. This design concept effectively avoids starting the pressing switch 12 before the product is properly positioned, thereby causing the hinge 60 product to be crushed or endangering the operator, effectively reducing the company's economic losses and ensuring the personal safety of the operators.

[0055] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A double-opening linkage pressing device for hinge production, characterized in that: The invention comprises a frame (10) and a positioning assembly (20) and a pressing assembly (30) mounted on the frame (10); the positioning assembly (20) is provided with a pin shaft positioning portion (21); the pin shaft positioning portion (21) is used to accommodate a pin shaft of a hinge (60) and to perform a positioning operation on the pin shaft; the pressing assembly (30) is provided with a side pressing portion (31) and a top pressing portion (40); the side pressing portion (31) is used to abut against a bracket portion of the hinge (60). The top surface pressing part (40) is provided with a pressing block (44) and a transverse slider (50), wherein the transverse slider (50) is movably connected to the pin shaft positioning part (21) and abuts against the pin shaft of the hinge (60); the pressing block (44) is fixedly connected to the driving end of the top surface pressing part (40) so that it is driven to move downward, thereby driving the transverse slider (50) to move transversely and press the pin shaft into the bracket part of the hinge (60).

2. A double-opening linkage pressing device for hinge production according to claim 1, characterized in that: The pin shaft positioning portion (21) is provided with a first positioning portion (22) and a second positioning portion (23), which are respectively used to perform positioning operations on the first pin shaft (63) and the second pin shaft (64) of the hinge (60); the transverse slider (50) is provided with a first slider (51) and a second slider (52), which are respectively used to abut against the first pin shaft (63) and the second pin shaft (64); one end of the first slider (51) abuts against the second slider (52), and the other end thereof is slidably connected to the first positioning portion (22); one end of the second slider (52) abuts against the first slider (51), and the other end thereof is slidably connected to the second positioning portion (23); the pressing insert (44) is provided with a first inclined surface (45) and a second inclined surface (46); the first inclined surface (45) can abut against the passive inclined surface (53) of the first slider (51), and the second inclined surface (46) can abut against the passive inclined surface (53) of the second slider (52).

3. A double-opening linkage pressing device for hinge production according to claim 2, characterized in that: The top surface pressing portion (40) is further provided with a pressing cylinder (41), a pressing slider (42) and a pressing rail (43); the pressing cylinder (41) and the pressing rail (43) are respectively fixedly connected to the frame (10); the pressing slider (42) and the pressing rail (43) cooperate with each other to form a sliding connection; one side of the pressing slider (42) is fixedly connected to the driving end of the pressing cylinder (41), and the other side is fixedly connected to the pressing plug (44), so that the pressing cylinder (41) is operated to drive the pressing slider (42) to move downward along the pressing rail (43), and at the same time drive the pressing plug (44) to move downward synchronously.

4. A double-opening linkage pressing device for hinge production according to claim 1, characterized in that: The side pressing portion (31) is provided with a first cylinder (32), a first pressing block (33), a second cylinder (34) and a second pressing block (35); the first cylinder (32) and the second cylinder (34) are respectively fixed to two sides of the frame (10); the first pressing block (33) is fixed to the driving end of the first cylinder (32), so that the first pressing block (33) abuts against the first arm (65) of the hinge (60) bracket; the second pressing block (35) is fixed to the driving end of the second cylinder (34), so that the second pressing block (35) abuts against the second arm (66) of the hinge (60) bracket.

5. The double-opening linkage pressing device for hinge production according to claim 1, characterized in that: The positioning assembly (20) is further provided with a first auxiliary frame (24), the first auxiliary frame (24) being fixedly connected to the frame (10) and assisting in positioning the lower bracket (62) of the hinge (60) so that the lower bracket (62) maintains a preset position.

6. A double-opening linkage pressing device for hinge production according to claim 5, characterized in that: The positioning assembly (20) is further provided with a positioning cylinder (25), a positioning guide block (26) and a positioning slide rail (27); the positioning cylinder (25) and the positioning slide rail (27) are respectively fixed to the frame (10); the positioning guide block (26) and the positioning slide rail (27) cooperate with each other to form a sliding connection; one end of the positioning guide block (26) is fixed to the driving end of the positioning cylinder (25), and the other end thereof can abut against the lower bracket (62) of the hinge (60), so that the lower bracket (62) is stably pressed on the first auxiliary frame (24).

7. A double-opening linkage pressing device for hinge production according to claim 6, characterized in that: The positioning assembly (20) is further provided with a positioning needle (28), the positioning needle (28) being fixedly connected to one end of the positioning guide block (26) abutting against the lower bracket (62), the positioning needle (28) being used to guide and position the lower bracket (62).

8. The double-opening linkage pressing device for hinge production according to claim 1, characterized in that: The positioning assembly (20) is further provided with a second auxiliary frame (29), the second auxiliary frame (29) being fixedly connected to the frame (10) and assisting in positioning the upper bracket (61) of the hinge (60) so that the upper bracket (61) maintains a preset position.

9. The double-opening linkage pressing device for hinge production according to claim 1, characterized in that: The positioning assembly (20) is further provided with a positioning switch (11), and the positioning switch (11) is used to start the positioning cylinder (25), thereby aligning the lower bracket (62) of the hinge (60) and pressing it onto the first auxiliary bracket (24).

10. The double-opening linkage pressing device for hinge production according to claim 1, characterized in that: The pressing assembly (30) is further provided with a pressing switch (12), and the pressing switch (12) is used to start the first cylinder (32), the second cylinder (34) and the pressing cylinder (41), thereby pressing the pin of the hinge (60) into the through hole of the upper bracket (61) to form a fixed connection.

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