A press-fit device for a fork assembly

Abstract

A fork assembly press-fitting device comprises a base, wherein the base is provided with a transverse guide groove and a longitudinal guide groove; a lower die is provided on the transverse guide groove, a first cylinder is fixedly provided at the lower end of the base along the direction of the transverse guide groove, and the first cylinder is connected to the lower die through a first cylinder coupling; an upper die is provided on the longitudinal guide groove, a second cylinder is fixedly provided on the base along the direction of the longitudinal guide groove, and the second cylinder is connected to the upper die through a second cylinder coupling; a start button, an electric control device and a solenoid valve group are also provided on the base. The present invention solves the problems of the traditional manual press-fit fork assembly being difficult to assemble, time-consuming and labor-intensive, having a low product qualification rate, and affecting production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts tooling, and in particular to a fork assembly press-fitting device. Background Art

[0002] The automobile combination switch comprises a handle, a shift fork driven by the handle, and a reset block is installed in the shift fork. The specific matching structure of the shift fork and the reset block is that the shift fork is provided with an arc groove, the bottom of the right end of the reset block is provided with a positioning column installed in the arc groove, a U-shaped groove is provided on the left side of the reset block, and a groove structure is also provided on the shift fork accordingly, and a compression spring is provided between the groove of the shift fork and the U-shaped groove of the reset block.

[0003] At present, the fork assembly process on the production line is all manual press-fitting, and there are the following problems: the fingers need to exert greater force from multiple different angles to complete the assembly, which is difficult to assemble, and the spring is easy to pop out during the assembly process, resulting in batch rework; the spring is not easy to install in place, which will affect the next process, resulting in unqualified products after assembly and low yield; the installation operation is time-consuming and labor-intensive, which greatly affects production efficiency. Therefore, it is important to invent a new fork assembly press-fitting device to replace manual press-fitting. Summary of the invention

[0004] The purpose of the present invention is to provide a fork assembly press-fitting device to solve the problems of traditional manual press-fitting fork assemblies being difficult to assemble, time-consuming and labor-intensive, having a low product qualification rate, and affecting production efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A fork assembly press-fitting device comprises a base, wherein the base is provided with a transverse guide groove and a longitudinal guide groove; a lower die is provided on the transverse guide groove, a first cylinder is fixedly provided at the lower end of the base along the direction of the transverse guide groove, and the first cylinder is connected to the lower die through a first cylinder coupling; an upper die is provided on the longitudinal guide groove, a second cylinder is fixedly provided on the base along the direction of the longitudinal guide groove, and the second cylinder is connected to the upper die through a second cylinder coupling; a start button and an electric control device are also provided on the base;

[0007] The lower die comprises a first slider and a first guide rail, and a fork reset block fixing block and a fork fixing block fixedly arranged on the upper end of the first slider; a baffle passing through the base is fixedly arranged at one end of the fork fixing block, and the baffle is connected to the first cylinder coupling;

[0008] The upper die comprises a second slider, a second guide rail, and a first slider fixedly arranged at the upper end of the second slider, and a bayonet adapted to the second cylinder coupling is arranged on the first slider at a position relative to the second cylinder; a fixing plate is fixedly connected to the upper end of the first slider, and the fixing plate is fixedly connected to a guide rail mounting plate with a third guide rail groove, a cylinder fixing plate is arranged above the guide rail mounting plate, and a third cylinder is fixedly connected above the cylinder fixing plate; the third guide rail groove is adapted to be provided with a third slider and a third guide rail, the third slider is fixedly connected to the second slider, the second slider is fixedly connected to the mounting plate, the upper end of the mounting plate is fixedly connected to a T-shaped connecting block, and the protrusion of the T-shaped connecting block is fixedly connected to the piston rod of the third cylinder; an adsorption block and a compression spring guide plate adapted to the length of the spring are fixedly arranged at one end of the mounting plate, and a compression spring guide block is arranged on the compression spring guide plate; the upper end of the mounting plate is fixedly connected to a cylinder mounting seat, and a fourth cylinder is fixedly arranged on the cylinder mounting seat, and the fourth cylinder is connected to the pressure plate with a bayonet through a third cylinder coupling;

[0009] Furthermore, in order to filter out water vapor and impurities in the gas source, a pressure regulating filter is provided on the base, and a hand sliding valve is provided on the pressure regulating filter, and the hand sliding valve is connected to the gas source.

[0010] Furthermore, in order to control the solenoid valve group to drive the movement of each cylinder and the adsorption of the adsorption block through the electronic control device, the first cylinder, the second cylinder, the pressure regulating filter, the third cylinder, and the fourth cylinder are all connected to the solenoid valve group, and the adsorption block is connected to the solenoid valve group through a vacuum generator; the solenoid valve group is connected to the electronic control device.

[0011] Furthermore, in order to detect when a problem occurs in the cylinder movement stroke causing the fork assembly to be improperly installed, realize the alarm function, and remind the staff to deal with it in time, a buzzer is provided on the pressing device, and the buzzer is connected to the electronic control device; the sensors on the first cylinder, the second cylinder, the third cylinder, and the fourth cylinder are also connected to the electronic control device.

[0012] Furthermore, in order to better limit the movement of the lower mold, a first limiting block and a second limiting block for limiting the lower mold are fixedly arranged at both ends of the transverse guide groove on the base.

[0013] Furthermore, in order to better limit the movement of the upper mold, a third limiting block for limiting the upper mold is fixedly provided on the base along the direction of the longitudinal guide groove.

[0014] Furthermore, in order to better buffer the downward thrust of the third cylinder and ensure that the shift fork will not be damaged by pressure when the upper mold assembly is pressed downward, an oil pressure buffer is arranged on the base relative to the lower end of the second slide plate.

[0015] Furthermore, in order to achieve high-precision sliding and extend the service life of the device, the first slider, the second slider and the third slider are all LM rolling sliders, and the first guide rail, the second guide rail and the third guide rail are all LM rolling guide rails.

[0016] Beneficial effects of the present invention: The present invention controls four cylinders through the electric control device on the press-fit device, promotes the sequential movement of the upper and lower mold assemblies, presses the spring into the specified position on the fork, and then presses the positioning column of the fork reset block into the arc groove of the fork to complete the assembly; at the same time, the present invention ensures the accuracy of the assembly position of the fork and the reset block through the positioning structure of the fixed block and the guide plate, and the spring will not pop up when the spring is compressed, and the oil pressure buffer also ensures that the fork will not be damaged by pressure when the upper mold assembly is pressed down. The present invention is convenient and reliable when installing the fork assembly, works smoothly and stably, improves the qualified rate of product assembly, and can effectively solve the problems of time-consuming and labor-intensive manual assembly and low work efficiency.

[0017] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a stereoscopic diagram of a fork assembly press-fitting device.

[0019] Figure 2 It is a three-dimensional diagram of the upper mold part in the present invention.

[0020] Figure 3 It is a left view of the upper mold part in the present invention.

[0021] Figure 4 It is the right side view of the upper mold part in the present invention.

[0022] Figure 5 It is the main structural exploded view of the upper mold part in the present invention.

[0023] Figure 6 It is a three-dimensional diagram of the lower mold part in the present invention.

[0024] Figure 7 It is an exploded view of the lower mold part of the present invention.

[0025] Figure 8 This is a structural diagram of the base after removing the upper and lower mold parts in the present invention.

[0026] Fig. 9 An exploded view of the fork assembly. DETAILED DESCRIPTION

[0027] like Figure 1 and Figure 8The fork assembly press-fitting device shown in the figure comprises a base 1, on which a transverse guide groove 11 and a longitudinal guide groove 12 are arranged; a lower die 2 is arranged on the transverse guide groove 11, a first cylinder 13 is fixedly arranged at the lower end of the base 1 along the direction of the transverse guide groove 11, and the first cylinder 13 is connected to the lower die 2 through a first cylinder coupling 131; an upper die 3 is arranged on the longitudinal guide groove 12, a second cylinder 14 is fixedly arranged on the base 1 along the direction of the longitudinal guide groove 12, and the second cylinder 14 is connected to the upper die 3 through a second cylinder coupling 141; a start button 18 and an electric control device 17 are also arranged on the base 1. The electric control device 17 can adopt a programmable logic controller PLC and a power supply, and the PLC is used to control the start and stop of each solenoid valve in the solenoid valve group, and the start button 18 is connected to the PLC input end.

[0028] like Figure 6 , Figure 7 and Figure 8 As shown, the lower mold 2 includes a first slider 21 and a first guide rail 22, as well as a fork reset block fixing block 23 fixedly arranged at the upper end of the first slider 21 and adapted to the fork reset block 53, and a fork fixing block 24 adapted to the fork 51; one end of the fork fixing block 24 is fixedly provided with a baffle 25 passing through the base 1, and the baffle 25 is connected to the first cylinder coupling 131.

[0029] like Figures 2 to 5As shown, the upper mold 3 includes a second slider 31, a second guide rail 32, and a first slider 33 fixedly arranged at the upper end of the second slider 31, and a bayonet adapted to the second cylinder coupling 141 is arranged on the first slider 33 at a position relative to the second cylinder 14; a fixing plate 48 is fixedly connected to the upper end of the first slider 33, and the fixing plate 48 is fixedly connected to a guide rail mounting plate 34 with a third guide rail groove, a cylinder fixing plate 35 is arranged above the guide rail mounting plate 34, and a third cylinder 36 is fixedly connected above the cylinder fixing plate 35; the third guide rail groove is adapted to be provided with a third slider 37 and a third guide rail 38, the third slider 37 is fixedly connected to the second slider 39, and the second slider 39 is fixedly connected to the mounting plate 41, The upper end of the mounting plate is fixedly connected to the T-shaped connecting block 40, and the protrusion of the T-shaped connecting block 40 is fixedly connected to the piston rod of the third cylinder 36. For the convenience of processing, the width of the protruding part of the T-shaped connecting block 40 can be set to be smaller than the spacing between the third guide rails 38. When the piston rod of the third cylinder 36 is pressed down, the T-shaped connecting block 40 is further pushed down; one end of the mounting plate 41 is fixedly provided with an adsorption block 42 and a compression spring guide plate 43 of an adapted spring length, and a compression spring guide block 44 is provided on the compression spring guide plate 43; the upper end of the mounting plate 41 is fixedly connected to the cylinder mounting seat 45, and the fourth cylinder 46 is fixedly provided on the cylinder mounting seat 45, and the fourth cylinder 46 is connected to the pressure plate 47 with a bayonet through the third cylinder coupling 461.

[0030] Furthermore, in order to filter out water vapor and impurities in the air source, a pressure regulating filter 15 is provided on the base 1, and a hand sliding valve 151 is provided on the pressure regulating filter 15, and the hand sliding valve 151 is connected to the air source. The hand sliding valve 151 is an air source switch, and the air pressure in the pneumatic system can be exhausted by turning the hand sliding valve 151.

[0031] Furthermore, in order to control the electromagnetic valve group to drive the movement of each cylinder and the adsorption of the adsorption block through the electronic control device, the first cylinder 13, the second cylinder 14, the pressure regulating filter 15, the third cylinder 36, and the fourth cylinder 46 are all connected to the electromagnetic valve group 16, and the adsorption block 42 is connected to the electromagnetic valve group 16 through the vacuum generator; the electromagnetic valve group 16 is connected to the electronic control device 17. The electromagnetic valves in the electromagnetic valve group can use the Yadek 4V210-08 two-position five-way electromagnetic valves, each of which has an air inlet and an air outlet, and the electromagnetic valve group 16 is connected to the output end of the PLC.

[0032] Furthermore, in order to detect when the fork assembly is not properly installed due to problems with the cylinder movement stroke, realize the alarm function, and remind the staff to deal with it in time, the press-fitting device is provided with a buzzer 19, and the buzzer 19 is connected to the electronic control device 17; the sensors on the first cylinder 13, the second cylinder 14, the third cylinder 36, and the fourth cylinder 46 are also connected to the electronic control device 17. The sensors of each cylinder are connected to the input end of the PLC, and the buzzer 19 is connected to the output end of the PLC.

[0033] Furthermore, in order to better limit the movement of the lower mold 2 , a first limiting block 112 and a second limiting block 113 for limiting the lower mold 2 are fixedly provided at both ends of the transverse guide groove 11 on the base 1 .

[0034] Furthermore, in order to better limit the movement of the upper mold 3 , a third limiting block 123 for limiting the upper mold 3 is fixedly provided on the base 1 along the direction of the longitudinal guide groove 12 .

[0035] Furthermore, in order to better buffer the downward thrust of the third cylinder and ensure that the shift fork will not be damaged by pressure when the upper mold assembly is pressed downward, an oil pressure buffer 20 is provided on the base 1 relative to the lower end of the second slide plate 39.

[0036] Furthermore, in order to achieve high-precision sliding and extend the service life of the device, the first slider 21, the second slider 31, and the third slider 37 are all LM rolling sliders, and the first guide rail 22, the second guide rail 32, and the third guide rail 38 are all LM rolling guides.

[0037] During the actual assembly, the fork 51 is manually placed on the fork fixing block 24 of the lower die 2, the fork reset block 53 is placed on the fork reset block fixing block 23 of the lower die 2, and then the spring 52 is placed on the spring groove of the fork 51; the start button 18 on the base 1 is pressed, and the first cylinder 13 under the base 1 pushes the lower die 2 to the far right, and then the second cylinder 14 pushes the upper die 3 forward until the adsorption block 42 and the compression spring guide plate 43 are respectively located above the fork reset block fixing block 23 and the fork fixing block 24, and then the third cylinder 36 passes through the T-shaped connecting block 40 and the second slide plate 3 9 drives the third slider 37 to slide downward, thereby pressing the adsorption block 42 and the compression spring guide plate 43 downward, and then the fourth cylinder 46 pushes the pressure plate 47 downward, pressing the spring 52 into the spring groove of the fork 51, and at the same time the adsorption block 42 adsorbs the fork reset block 53; then the third cylinder 36 drives the second slide plate 39 to move upward, and the first cylinder 13 pushes the lower mold 2 to move to the left to the far left, so that the adsorption block 42 is directly above the fork fixing block 24, and finally the third cylinder 36 pushes the second slide plate 39 downward, thereby pressing the adsorption block 42 downward, pressing the fork reset block 53 into the arc groove of the fork 51 to complete the assembly. After the assembly is completed, the upper and lower mold assemblies automatically reset. In the process of pressing parts, if the pressing is not in place, the buzzer 19 will alarm to avoid defective products and rework. Of course, in order to realize the above-mentioned operation steps, the solenoid valve group 16 and each cylinder are controlled by the programmable logic controller PLC of the electronic control device 17.

[0038] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they all fall within the protection scope of the present invention.

Claims

1. A fork assembly press-fitting device, comprising a base (1), characterized in that: The base (1) is provided with a transverse guide groove (11) and a longitudinal guide groove (12); a lower mold (2) is provided on the transverse guide groove (11); a first cylinder (13) is fixedly provided at the lower end of the base (1) along the direction of the transverse guide groove (11); the first cylinder (13) is connected to the lower mold (2) via a first cylinder coupling (131); an upper mold (3) is provided on the longitudinal guide groove (12); a second cylinder (14) is fixedly provided on the base (1) along the direction of the longitudinal guide groove (12); the second cylinder (14) is connected to the upper mold (3) via a second cylinder coupling (141); a start button (18) and an electric control device (17) are also provided on the base (1); The lower die (2) comprises a first slider (21) and a first guide rail (22), and a fork reset block fixing block (23) and a fork fixing block (24) fixedly arranged on the upper end of the first slider (21); a baffle (25) passing through the base (1) is fixedly arranged at one end of the fork fixing block (24), and the baffle (25) is connected to the first cylinder coupling (131); The upper mold (3) comprises a second slider (31), a second guide rail (32), and a first slider (33) fixedly arranged at the upper end of the second slider (31); a bayonet adapted to the second cylinder coupling (141) is arranged on the first slider (33) at a position relative to the second cylinder (14); a fixing plate (48) is fixedly connected to the upper end of the first slider (33); the fixing plate (48) is fixedly connected to a guide rail mounting plate (34) with a third guide rail groove; a cylinder fixing plate (35) is arranged above the guide rail mounting plate (34); a third cylinder (36) is fixedly connected to the upper end of the cylinder fixing plate (35); the third slider (37) and the third guide rail (38) are adapted to be arranged in the third guide rail groove; the third slider (37) and the third guide rail (38) are adapted to be arranged in the third guide rail groove; the third slider (37) and the third guide rail (38) are fixedly connected to the third cylinder coupling (141); 7) is fixedly connected to the second slide plate (39), the second slide plate (39) is fixedly connected to the mounting plate (41), the upper end of the mounting plate is fixedly connected to the T-shaped connecting block (40), the protrusion of the T-shaped connecting block (40) is fixedly connected to the piston rod of the third cylinder (36); one end of the mounting plate (41) is fixedly provided with an adsorption block (42) and a compression spring guide plate (43) adapted to the length of the spring, and the compression spring guide plate (43) is provided with a compression spring guide block (44); the upper end of the mounting plate (41) is fixedly connected to the cylinder mounting seat (45), the fourth cylinder (46) is fixedly provided on the cylinder mounting seat (45), and the fourth cylinder (46) is connected to the pressure plate (47) with a bayonet through the third cylinder coupling (461).

2. The fork assembly press-fitting device according to claim 1, characterized in that: The base (1) is provided with a pressure regulating filter (15), the pressure regulating filter (15) is provided with a manual sliding valve (151), and the manual sliding valve (151) is connected to an air source.

3. The fork assembly press-fitting device according to claim 2, characterized in that: The first cylinder (13), the second cylinder (14), the pressure regulating filter (15), the third cylinder (36), and the fourth cylinder (46) are all connected to the solenoid valve group (16); the adsorption block (42) is connected to the solenoid valve group (16) via a vacuum generator; and the solenoid valve group (16) is connected to an electronic control device (17).

4. The fork assembly press-fitting device according to claim 1, characterized in that: The pressing device is provided with a buzzer (19), and the buzzer (19) is connected to the electronic control device (17); the sensors on the first cylinder (13), the second cylinder (14), the third cylinder (36), and the fourth cylinder (46) are also connected to the electronic control device (17).

5. The fork assembly press-fitting device according to claim 1, characterized in that: A first limiting block (112) and a second limiting block (113) for limiting the lower die (2) are fixedly arranged at both ends of the transverse guide groove (11) on the base (1).

6. The fork assembly press-fitting device according to claim 1, characterized in that: A third limiting block (123) for limiting the upper mold (3) is fixedly provided on the base (1) along the direction of the longitudinal guide groove (12).

7. The fork assembly press-fitting device according to claim 1, characterized in that: An oil pressure buffer (20) is arranged on the base (1) at a position relative to the lower end of the second slide plate (39).

8. The fork assembly press-fitting device according to claim 1, characterized in that: The first slider (21), the second slider (31) and the third slider (37) are all LM rolling sliders, and the first guide rail (22), the second guide rail (32) and the third guide rail (38) are all LM rolling guide rails.

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