A dynamic pin press-fitting device

Abstract

The present invention discloses a dynamic pin pressing device, which includes a horizontal pressing mechanism. The horizontal pressing mechanism includes a supporting mechanism for supporting on one side of the workpiece, a pressing mechanism for pressing a pin into a pin hole from the other side of the workpiece, and a horizontal adjustment mechanism for enabling the workpiece to achieve dynamic force balance. The force directions of the supporting mechanism and the pressing mechanism are opposite. The pressing mechanism provides the original driving force for the horizontal adjustment mechanism. The horizontal adjustment mechanism is slidably connected to the pressing mechanism and the supporting mechanism. The structure of this application is simple and has high flexibility. By supporting on one side of the pin hole of the workpiece through the supporting mechanism, and the force directions of the supporting mechanism and the pressing mechanism are opposite, the workpiece can be clamped. The horizontal adjustment mechanism can drive the supporting mechanism and the pressing mechanism to move synchronously, so that the forces on both sides of the workpiece gradually tend to be balanced, preventing excessive pressure on one side and causing deformation of the workpiece.

Description

Technical Field

[0001] The present invention relates to the field of pin installation equipment, and particularly to a dynamic pin pressing device. Background Art

[0002] A pin is a part made of cylindrical wood, metal or other materials, which can fix several separate objects together or be installed as a part in the pin hole of another object. The head of the pin is cylindrical, and the tail is cylindrical or conical, similar to the shape of a bullet, and it is one of the commonly used fasteners in modern mechanical equipment.

[0003] The fit between the pin and the pin hole is usually an interference fit. Mainly, after manually placing the pin, a hammer is used to apply force to press the pin into the pin hole. At present, some automatic pin pressing devices have also appeared on the market, but the existing pin pressing is fixed, that is: the workpiece is fixed, and the pin is pressed into the pin hole in a fixed direction. When the wall thickness of the workpiece is relatively thin, if the force applied during pin pressing is too large or the supporting force of the mechanism for fixing the workpiece is insufficient, it is easy to cause deformation of the thin wall of the workpiece. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a dynamic pin pressing device, which can effectively solve the above problems, and press the pin into the workpiece in a state where the workpiece is in a balanced force, with high flexibility.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a dynamic pin pressing device, including a horizontal pressing mechanism, the horizontal pressing mechanism includes a supporting mechanism for supporting on one side of the workpiece, a pressing mechanism for pressing the pin into the pin hole from the other side of the workpiece, and a horizontal adjustment mechanism for enabling the workpiece to achieve dynamic force balance. The force directions of the supporting mechanism and the pressing mechanism are opposite, the pressing mechanism provides the original driving force for the horizontal adjustment mechanism, and the horizontal adjustment mechanism is slidably connected to the pressing mechanism and the supporting mechanism.

[0006] Preferably, the horizontal adjustment mechanism includes a linear guide rail module, and the linear guide rail module is connected to the pressing mechanism and the supporting mechanism through a connecting plate.

[0007] Preferably, the linear guide rail module includes a slide rail seat, a linear slide rail and a slide seat. A return spring is fixedly installed on the slide rail seat, and one end of the return spring is connected to the slide seat or the connecting plate.

[0008] Preferably, the supporting mechanism includes a connecting frame connected to the pressing mechanism. The connecting frame is in an inverted "L" shape structure, and the connecting frame is connected with a supporting block, and the supporting block faces the pressing mechanism.

[0009] Preferably, a supporting bolt is installed on the supporting block.

[0010] Preferably, the pressing mechanism includes a telescopic mechanism and a pin fixing head. The telescopic mechanism is a cylinder, an oil cylinder or an electric push rod, and the pin fixing head is connected to one end of the telescopic rod of the telescopic mechanism.

[0011] Preferably, an air inspection structure is provided on the pressing mechanism. The air inspection structure includes an inflation channel. The air inlet of the inflation channel is connected to an inflation device through an inflation valve. A pressure sensor is provided in the inflation channel. The pressure sensor detects the pressure change of the inflation channel (1221). When the pin is pressed into the pin hole of the workpiece, the workpiece abuts against the air outlet of the inflation channel.

[0012] Preferably, a clamping hole for installing the pin is provided at the front end of the pin fixing head, and a magnet for adsorbing the pin is provided in the clamping hole.

[0013] Preferably, a longitudinal adjustment mechanism is further provided on the horizontal pressing mechanism. The longitudinal adjustment mechanism is connected to the horizontal adjustment mechanism. The longitudinal adjustment mechanism includes a lifting mechanism for driving the horizontal pressing mechanism to move up and down. The lifting mechanism is connected with a mounting plate.

[0014] Preferably, the lifting mechanism is a cylinder, an oil cylinder or an electric push rod.

[0015] The beneficial effects of the present invention are as follows: The structure of the dynamic pin pressing device of the present invention is simple and has high flexibility. It is supported on one side of the pin hole of the workpiece through the supporting mechanism. The force directions of the supporting mechanism and the pressing mechanism are opposite, and the workpiece can be clamped. The horizontal adjustment mechanism can drive the supporting mechanism and the pressing mechanism to move synchronously, so that the forces on both sides of the workpiece gradually tend to be balanced during dynamic movement, preventing excessive pressure on one side and causing deformation of the workpiece. Description of the Drawings

[0016] Figure 1 is a structural diagram of the dynamic pin pressing device of the present invention;

[0017] Figure 2 is a structural principle diagram of the dynamic pin pressing device of the present invention;

[0018] Figure 3 is a usage state diagram a of the dynamic pin pressing device in this embodiment;

[0019] Figure 4 is a usage state diagram b of the dynamic pin pressing device in this embodiment;

[0020] Figure 5 is a schematic diagram of the air inspection principle of the dynamic pin pressing device before the pin is pressed into the workpiece of the present invention;

[0021] Figure 6This is a schematic diagram of the air inspection principle of the dynamic pin pressing device after the pin is pressed into the workpiece in the present invention. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 - 4 , in the embodiment of the present invention, a dynamic pin pressing device includes a horizontal pressing mechanism 1. The horizontal pressing mechanism 1 includes a support mechanism 11 for supporting on one side of the workpiece 4, a pressing mechanism 12 for pressing the pin 3 into the pin hole from the other side of the workpiece 4, and a horizontal adjustment mechanism 13 for enabling the workpiece 4 to achieve dynamic force balance. The support mechanism 11 and the pressing mechanism 12 have opposite force application directions and can clamp the workpiece from both sides of the workpiece 4. The pressing mechanism 12 provides the original driving force for the horizontal adjustment mechanism 13. The horizontal adjustment mechanism 13 is slidably connected to the pressing mechanism 12 and the support mechanism 11. During pressing, a part of the pressing force generated by the pressing mechanism 12 acts on the horizontal adjustment mechanism 13, causing the horizontal adjustment mechanism 13 to drive the pressing mechanism 12 and the support mechanism 11 to move synchronously, thereby driving the workpiece 4 to move. Another part of the pressing force generated by the pressing mechanism 12 presses the pin into the pin hole from the other side of the workpiece 4. The forces on both sides of the workpiece 4 can gradually tend to balance during the movement process, preventing excessive pressure on one side of the workpiece 4 and causing deformation of the workpiece 4.

[0024] More specifically, in this embodiment, the horizontal adjustment mechanism 13 includes a linear guide rail module 131. The linear guide rail module 131 includes a slide rail seat 1311, a linear slide rail 1312, and a slide seat 1313. The linear slide rail 1312 is arranged on the slide rail seat 1311. The slide seat 1313 is slidably matched with the linear slide rail 1312. The two side plates of the slide rail seat 1311 are respectively arranged on both sides of the linear slide rail 1312. A return spring 1314 is fixedly installed on the slide rail seat 1311. The return spring 1314 is arranged on one side of the slide seat 1313 and is parallel to the slide rail direction of the linear slide rail 1312. One end of the return spring 1314 is fixedly connected to the slide rail seat 1311, and the other end of the return spring 1314 is connected to one side of the connecting plate 132. The slide seat 1313 of the linear guide rail module 131 is connected to the pressing mechanism 12 and the support mechanism 11 through the connecting plate 132.

[0025] As a further solution of this embodiment, the pressing mechanism 12 includes a telescopic mechanism 121 and a pin-fixed pressing head 122. The telescopic mechanism 121 is a cylinder, an oil cylinder or an electric push rod, and the pin-fixed pressing head 122 is connected to one end of the telescopic rod of the telescopic mechanism 121. The supporting mechanism 11 includes a connecting frame 111 connected to the pressing mechanism 12. The connecting frame 111 is in an inverted "L" shape structure. The connecting frame 111 is connected with a supporting block 112. The supporting block 112 faces the telescopic rod of the pressing mechanism 12. The connecting plate 132 is fixedly connected to one side of the connecting frame 111 and the pressing mechanism 12. During pressing, the workpiece 4 is between the supporting block 112 and the pressing mechanism 12. The telescopic rod of the pressing mechanism 12 extends to apply a pressing force to the workpiece 4, first pushing the workpiece 4 to one side of the supporting block 112. At this time, the telescopic rod of the pressing mechanism 12 will apply a thrust to the supporting block 112 through the workpiece 4. Under the action of the thrust, the supporting block 112 will generate a reverse force to support the workpiece 4 and a force to drive the slide block 1313 to move. Therefore, the workpiece 4 is clamped between the supporting block 112 and the telescopic rod of the pressing mechanism 12. The slide block 1313 moves along the direction of the linear slide rail 1312, so that the workpiece 4 can move synchronously. The return spring 1314 undergoes elastic deformation under the movement of the slide block 1313, so that the slide block 1313 automatically stops at a certain position. The pin is pressed into the pin hole by the telescopic rod of the pressing mechanism 12 during the dynamic movement of the workpiece. After pressing is completed, the telescopic rod of the pressing mechanism 12 contracts, the force received by the supporting block 112 disappears, and the slide block 1313 resets under the action of the elastic recovery of the return spring 1314, driving the pressing mechanism 12 and the supporting mechanism 11 to reset.

[0026] More specifically, a supporting bolt 113 is installed on the supporting block 112. The supporting bolt 113 faces the telescopic rod of the pressing mechanism 12 to ensure that the two sides of the workpiece 4 are symmetrically stressed.

[0027] In addition, referring to Figure 5 、 Figure 6 , an air detection structure is provided on the pin-fixed pressing head 122. The air detection structure is used to detect whether the pin is completely pressed into the pin hole. The air detection structure includes an air inflation channel 1221. The air inlet of the air inflation channel 1221 is connected to an air inflation device through an air inflation valve 123. The air inflation device inflates the air inflation channel 1221 through the air inflation valve 123. A pressure sensor is provided in the air inflation channel 1221, and the pressure sensor detects the pressure change in the air inflation channel 1221. When the pin 3 is pressed into the pin hole of the workpiece 4, the workpiece 4 abuts against the air outlet of the air inflation channel 1221, and the pressure in the air inflation channel 1221 increases and reaches a preset threshold. At this time, the piston rod of the pressing mechanism 12 contracts, and the pressing operation is completed.

[0028] A clamping hole 1222 for installing the pin 3 is provided at the front end of the pin-fixed pressure head 122. A magnet 1223 for adsorbing the pin 3 is provided in the clamping hole 1222, and the pin 3 is magnetically adsorbed in the clamping hole 1222.

[0029] As a preferred solution of this embodiment, it further includes a longitudinal adjustment mechanism 2 provided on the horizontal pressing mechanism 1. The longitudinal adjustment mechanism 2 is fixedly connected to the horizontal adjustment mechanism 13. The longitudinal adjustment mechanism 2 includes a lifting mechanism 21 that drives the horizontal pressing mechanism 1 to move up and down. The lifting mechanism 21 is connected with a mounting plate 22, and the mounting plate 22 is used to connect other support devices or vertical poles. The lifting mechanism 21 can be a cylinder, an oil cylinder or an electric push rod. The telescopic rod of the lifting mechanism 21 is connected to the slide rail seat 1313 through a horizontal connecting plate. The pressing mechanism 12 is horizontally arranged below the longitudinal adjustment mechanism 2.

[0030] Working principle: During operation, the telescopic rod of the longitudinal adjustment mechanism 2 extends downward, causing the horizontal pressing mechanism 1 to descend to the placement position of the workpiece 4. The pressing mechanism 12 and the support mechanism 11 are symmetrically located on both sides of the workpiece 4 respectively. The pin 3 is magnetically adsorbed on the clamping hole 1222. The telescopic rod of the telescopic mechanism 121 extends toward the workpiece 4 side, clamping the workpiece 4 between the support block 112 and the telescopic rod of the pressing mechanism 12. The slide rail seat 1313 moves along the direction of the linear slide rail 1312, enabling the workpiece 4 to move synchronously. The return spring 1314 undergoes elastic deformation under the movement of the slide rail seat 1313, causing the slide rail seat 1313 to automatically stop at a certain position. The acting forces on both sides of the workpiece 4 gradually tend to balance during the dynamic movement process. The pin 3 is pressed into the pin hole by the telescopic rod of the pressing mechanism 12 during the dynamic movement process of the workpiece. At this time, the workpiece 4 abuts against the air outlet of the air inflation channel 1221, the pressure of the air inflation channel 1221 increases and reaches a preset threshold value. The telescopic rod of the pressing mechanism 12 contracts, the acting force on the support block 112 disappears, and the slide rail seat 1313 resets under the acting force of the elastic recovery of the return spring 1314, driving the pressing mechanism 12 and the support mechanism 11 to reset. The telescopic rod of the longitudinal adjustment mechanism 2 contracts upward, resetting the horizontal pressing mechanism 1.

[0031] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A dynamic pin pressing device, characterized in that, It includes a horizontal pressing mechanism (1), and the horizontal pressing mechanism (1) includes a supporting mechanism (11) for supporting on one side of the workpiece (4), a pressing mechanism (12) for pressing the pin (3) into the pin hole from the other side of the workpiece (4), and a horizontal adjustment mechanism (13) for enabling the workpiece (4) to achieve dynamic force balance. The force directions of the supporting mechanism (11) and the pressing mechanism (12) are opposite. The pressing mechanism (12) provides the original driving force for the horizontal adjustment mechanism (13). The horizontal adjustment mechanism (13) is slidably connected to the pressing mechanism (12) and the supporting mechanism (11). The horizontal adjustment mechanism (13) includes a linear guide rail module (131). The linear guide rail module (131) is connected to the pressing mechanism (12) and the supporting mechanism (11) through a connecting plate (132). The linear guide rail module (131) includes a slide rail seat (1311), a linear slide rail (1312), and a slide seat (1313). A return spring (1314) is fixedly installed on the slide rail seat (1311). One end of the return spring (1314) is connected to the slide seat (1313) or the connecting plate (132). The supporting mechanism (11) includes a connecting frame (111) connected to the pressing mechanism (12). The connecting frame (111) has an inverted "L" - shaped structure. The connecting frame (111) is connected with a supporting block (112). The supporting block (112) faces the pressing mechanism (12). The pressing mechanism (12) includes a telescopic mechanism (121) and a pin - fixing pressing head (122). The telescopic mechanism (121) is a cylinder, an oil cylinder, or an electric push rod. The pin - fixing pressing head (122) is connected to one end of the telescopic rod of the telescopic mechanism (121).

2. The dynamic pin pressing device according to claim 1, characterized in that: A supporting bolt (113) is installed on the supporting block (112).

3. The dynamic pin pressing device according to claim 1, wherein: An air - inspection structure is provided on the pressing mechanism (12). The air - inspection structure includes an air - inflation channel (1221). The air inlet of the air - inflation channel (1221) is connected to an air - inflation device through an air - inflation valve (123). A pressure sensor is arranged in the air - inflation channel (1221). The pressure sensor detects the pressure change in the air - inflation channel (1221). When the pin (3) is pressed into the pin hole of the workpiece (4), the workpiece (4) abuts against the air outlet of the air - inflation channel (1221).

4. A dynamic pin pressing device according to claim 1, characterized in that: A clamping hole (1222) for installing the pin (3) is provided at the front end of the pin - fixing pressing head (122). A magnet (1223) for adsorbing the pin (3) is arranged in the clamping hole (1222).

5. A dynamic pin pressing device according to claim 1, characterized in that: It further includes a longitudinal adjustment mechanism (2) arranged on the horizontal pressing mechanism (1). The longitudinal adjustment mechanism (2) is connected to the horizontal adjustment mechanism (13). The longitudinal adjustment mechanism (2) includes a lifting mechanism (21) for driving the horizontal pressing mechanism (1) to move up and down. The lifting mechanism (21) is connected with a mounting plate (22).

6. The dynamic pin pressing device according to claim 5, characterized in that: The lifting mechanism (21) is a cylinder, an oil cylinder, or an electric push rod.

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