Gearbox multi-bearing press-fit device

Abstract

The present invention relates to a gearbox multi-bearing press-fitting device, comprising a base plate, a plurality of guide columns are arranged on the base plate, a positioning base is arranged above the base plate, the positioning base is slidably connected to the guide columns, a reset spring is sleeved at the position of the guide columns between the positioning base and the base plate, a plurality of positioning holes are arranged on the positioning base, a pressure head is passed through the positioning hole, a plurality of cylinders are arranged on the base plate, a cushion block is fixed at the end of the piston rod of the cylinder, the plurality of cylinders can push the cushion block connected thereto to the bottom of the positioning hole in batches and support the lower end of the pressure head, a support plate is fixed at the top of the plurality of guide columns, a driving cylinder is fixed on the support plate, the piston rod of the driving cylinder passes through the support plate and is fixed to the pressure plate, and the pressure plate is slidably connected to the guide columns. The present invention has the characteristics of simple and time-saving press-fitting of a plurality of bearing workpieces, low investment cost and high press-fitting quality.

Description

Technical Field

[0001] The invention relates to a gear box multi-bearing press-fitting device, belonging to the technical field of gear box component assembly. Background Art

[0002] When press-fitting bearing workpieces on the gear box cover, if multiple bearing workpieces are press-fitted onto the gear box cover at the same time, there will be a certain error between the bearing workpiece and the bearing mounting hole of the gear box cover. At this time, if the bearing workpiece is forcibly press-fitted, the gear box cover and the bearing workpiece will be damaged, affecting the press-fitting quality. Alternatively, multiple devices are used to press-fit multiple bearing workpieces at the same time. Such press-fitting is very time-consuming and cumbersome, and also increases the investment cost. Summary of the invention

[0003] The purpose of the present invention is to provide a gearbox multi-bearing press-fitting device, which solves the problems existing in the prior art that the press-fitting of multiple bearing workpieces is time-consuming and cumbersome, has high investment costs and low press-fitting quality.

[0004] The above technical objectives of the present invention are mainly solved by the following technical solutions: a gearbox multi-bearing press-fitting device, comprising a base plate, a plurality of vertically arranged guide columns are arranged on the base plate, a positioning base is arranged above the base plate, the positioning base is slidably connected with the guide columns, a reset spring is sleeved at the position where the guide columns are located between the positioning base and the base plate, a plurality of positioning holes corresponding to the bearing mounting holes on the gearbox cover workpiece are arranged on the positioning base, a pressure head that can move up and down is inserted into the positioning holes, and a plurality of horizontally arranged air springs corresponding to the number of the positioning holes are arranged on the base plate. Cylinder, a pad is fixed at the end of the piston rod of the cylinder, and the multiple cylinders can push the pad connected thereto to the bottom of the positioning hole in batches and support the lower end of the pressure head. A support plate is fixed to the top of the several guide columns, and a vertically arranged driving cylinder is installed and fixed on the support plate. The piston rod of the driving cylinder passes through the support plate and is fixed to the pressure plate. The pressure plate is slidably connected to the guide column, and the pressure plate is between the support plate and the positioning base. Through the setting of the above-mentioned positioning holes, the box cover can pre-position each bearing workpiece through the positioning holes before press-fitting to ensure that each bearing workpiece is aligned with the bearing The positions of the mounting holes correspond to each other, which improves the press-fitting accuracy. The above-mentioned pressure head is set to support the bearing workpiece so that the bearing workpiece can be pressed into the bearing mounting hole to ensure the strength and stability during press-fitting. The above-mentioned cylinder and pad block are set so that when the bearing workpiece is press-fitted, the bottom of the single bearing workpiece can be supported by the cooperation of a single pad block and a pressure head, so that multiple bearing workpieces in the same equipment can be press-fitted one by one in batches, without moving the box cover or setting up multiple equipment, which simplifies the operation steps, saves press-fitting time, and reduces investment costs. The arrangement of the positioning base and the compression spring allows the positioning base to move downward when the pressure plate is pressed downward, so that the pressure head can move upward relatively to push the bearing workpiece, thereby completely and thoroughly pressing the bearing workpiece onto the box cover, ensuring that the bearing workpiece can be pressed into place, and after the press-fitting is completed, the positioning base can automatically reset and raise the pressure head to facilitate the next movement of the pad; through the arrangement of the pressure plate, the box cover can realize the press-fitting of the bearing by moving the pressure plate downward, ensuring the stability of the pressure plate when pressing the box cover, thereby ensuring the accuracy of the press-fitting of the bearing workpiece and improving the press-fitting quality of the bearing workpiece.

[0005] Preferably, the positioning hole includes a limiting hole section with a larger aperture located at the upper part and a guide hole section located at the lower part, the aperture of the guide hole section is smaller than the aperture of the limiting hole section, and the pressure head includes an upper section cooperating with the limiting hole section and a lower section cooperating with the guide hole section; through the arrangement of the above-mentioned limiting hole section and the guide hole section, it is possible to prevent the pressure head from falling downward from the positioning hole, and ensure that the pressure head can extend out of the positioning hole and abut against the pad, and at the same time, when the positioning base moves upward, it can drive the pressure head to move up, so as to avoid interference with the next movement of the pad.

[0006] Preferably, the height of the upper section of the pressing head is smaller than the depth of the limiting hole section, and the upper end of the limiting hole section can cooperate with the bearing workpiece; through the above-mentioned setting of the depth of the limiting hole section, the above-mentioned bearing workpiece can be placed in the positioning hole before pressing, so as to realize the pre-installation positioning of the bearing workpiece, so as to facilitate the precise placement of the box cover workpiece and enhance the accuracy of the bearing workpiece during pressing.

[0007] Preferably, a cylinder mounting plate for fixing the cylinder is provided at a position on the base plate corresponding to the outer side of the positioning base, the piston rod end of the cylinder is connected to the floating joint, and one side of the cushion block is provided with a connecting groove matching the floating joint; the arrangement of the above-mentioned cylinder mounting plate facilitates the fixing of the cylinder to ensure the stability of the cylinder arrangement, and the setting of the connecting groove allows a certain floating space to be provided between the cushion block and the cylinder rod, thereby avoiding damage to the cylinder rod due to mutual misalignment between the cushion block and the cylinder rod due to insufficient precision, improving the fault tolerance rate when connecting between the cushion block and the cylinder output shaft, and ensuring that the cylinder rod can stably drive the cushion block to move.

[0008] Preferably, guide sleeves are provided at the connection between the pressure plate and the positioning base and the guide column; the setting of the guide sleeves can assist the movement of the pressure plate and the positioning base, increase the smoothness of the movement of the pressure plate and the positioning base, and maintain the stability of the pressure plate and the positioning base during movement.

[0009] Therefore, the present invention has the characteristics of being simple and time-saving in press-fitting a plurality of bearing workpieces, having low investment cost and high press-fitting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural diagram of the present invention in a standby state;

[0011] Figure 2 is a structural cross-sectional view of the present invention from another perspective in a standby state;

[0012] Figure 3 It is a three-dimensional structural diagram of the present invention in a press-fit state;

[0013] Figure 4 is a structural cross-sectional view of the present invention in a press-fit state from another viewing angle;

[0014] Figure 5 yes Figure 4 A magnified view of the structure in FIG. DETAILED DESCRIPTION

[0015] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0016] like Figure 1-5As shown, a gearbox multi-bearing press-fitting device comprises a base plate 1, on which a plurality of vertically arranged guide columns 11 are arranged, a positioning base 2 is arranged above the base plate 1, the positioning base 2 is slidably connected with the guide columns 11, a position of the guide columns 11 between the positioning base 2 and the base plate 1 is sleeved with a return spring 111, a plurality of positioning holes 21 corresponding to the bearing mounting holes on the gearbox cover workpiece are arranged on the positioning base 2, a pressing head 22 which can move up and down is penetrated in the positioning holes 21, a plurality of horizontally arranged cylinders 12 corresponding to the number of the positioning holes 21 are arranged on the base plate 1, a cushion block 13 is fixed to the end of the piston rod of the cylinder 12, and a plurality of The cylinder 12 can push the pad 13 connected to it to the bottom of the positioning hole 21 in batches and support the lower end of the pressure head 22. A support plate 3 is fixed to the top of the guide column 11. A vertically arranged driving cylinder 31 is installed and fixed on the support plate 3. The piston rod of the driving cylinder 31 passes through the support plate 3 and is fixed to the pressure plate 32. The pressure plate 32 is slidably connected to the guide column 11. The pressure plate 32 is between the support plate 3 and the positioning base 2. Through the setting of the above-mentioned positioning holes, the box cover can pre-position each bearing workpiece through the positioning holes before press-fitting, ensuring that the position of each bearing workpiece corresponds to the position of the bearing mounting hole, thereby improving the press-fitting accuracy. The setting of the above-mentioned pressure head The arrangement of the cylinder and the pad makes it possible to support the bearing workpiece so that the bearing workpiece can be pressed into the bearing mounting hole to ensure strength and stability during press-fitting. The arrangement of the cylinder and the pad makes it possible to support the bottom of a single bearing workpiece through the cooperation of a single pad and a pressing head during press-fitting, so that multiple bearing workpieces in the same device can be press-fitted one by one in sequence without moving the box cover or setting up multiple devices, thus simplifying the operation steps, saving press-fitting time, and reducing investment costs. The floating joint is a product currently available on the market and is a prior art, which will not be described in detail here. The bottom plate 1 corresponds to the positioning A cylinder mounting plate 121 for fixing the cylinder 12 is provided at the outer side of the base. The piston rod end of the cylinder 12 is connected to the floating joint 121. A connecting groove 131 matching the floating joint 121 is provided on one side of the cushion block 13. The above-mentioned cylinder mounting plate is arranged to facilitate the fixation of the cylinder and ensure the stability of the cylinder arrangement. The arrangement of the connecting groove allows a certain floating space to be provided between the cushion block and the cylinder rod, thereby avoiding damage to the cylinder rod due to misalignment between the cushion block and the cylinder rod due to insufficient precision, improving the fault tolerance rate when connecting the cushion block and the cylinder output shaft, and ensuring that the cylinder rod can stably drive the cushion block to move.

[0017] One end of the floating joint is connected to the cylinder rod of the cylinder, and the other end of the floating joint is connected to the pad. The floating joint can move up and down in the pad. Before press-fitting the box cover, the bearing is first placed on the positioning hole, and the pressure head is located below the bearing and placed in the positioning hole. Then one of the cylinders is started, and the cylinder drives a pad to move below the positioning hole. The box cover is placed above the bearing workpiece, and the bearing mounting hole on the box cover is aligned with the bearing workpiece. Then, the box cover and the bearing workpiece are press-fitted. After the press-fitting is completed, the next cylinder is started to control the pad connected to it to continue to move for press-fitting.

[0018] like Figure 3-5 As shown, the positioning hole 21 includes a limiting hole section 211 located at the upper part and having a larger aperture and a guide hole section 212 located at the lower part. The aperture of the guide hole section 212 is smaller than the aperture of the limiting hole section 211. The pressure head 22 includes an upper section 221 that cooperates with the limiting hole section 211 and a lower section 222 that cooperates with the guide hole section 212. By setting the above-mentioned limiting hole section and the guide hole section, it is possible to prevent the pressure head from falling downward from the positioning hole, and ensure that the pressure head can extend out of the positioning hole and abut against the cushion block. At the same time, when the positioning base moves upward, the pressure head can be driven to move upward to avoid interference with the next movement of the cushion block; the height of the upper section 221 of the pressure head is smaller than the limiting hole section. The depth of 211, the upper end of the limiting hole section 211 can cooperate with the bearing workpiece. Through the above-mentioned setting of the depth of the limiting hole section, the above-mentioned bearing workpiece can be placed in the positioning hole before press-fitting, so as to realize the pre-installation positioning of the bearing workpiece, so as to facilitate the accurate placement of the box cover workpiece and enhance the accuracy of the bearing workpiece during press-fitting; after the pressure head is placed in the limiting hole section, there is still space above the pressure head for the bearing to be placed. When the positioning base moves up by the action of the reset spring, the pressure head will be driven up, so that the distance between the bottom of the pressure head and the bottom plate is greater than the height of the cushion block, so that the next cushion block can move to the bottom of the pressure head.

[0019] After placing the box cover workpiece above the bearing workpiece, start the driving cylinder, and the driving cylinder drives the pressure plate to gradually move downward. The pressure plate continues to move downward after contacting the box cover workpiece. The box cover workpiece and the positioning base are positioned by a pin connection to avoid displacement of the box cover workpiece when being pressed, thereby ensuring the pressing accuracy. After the pressure plate continues to press the box cover workpiece downward, the pressure plate will drive the positioning base to move downward, and the reset spring will contract. When the pressure head contacts the pad, the positioning base continues to move downward, and the pressure head cannot move downward, and moves upward relative to the positioning base to push the bearing workpiece into the bearing mounting hole. After the bearing workpiece is completely pressed into place, the driving cylinder drives the pressure plate to move upward, cancels the downward pressure, and the positioning base automatically moves upward under the action of the reset spring, driving the pressure head and the box cover workpiece to move upward until the positioning base stops moving upward, thereby completing the pressing of the bearing workpiece.

Claims

1. A gearbox multi-bearing press-fitting device, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a plurality of vertically arranged guide columns (11), a positioning base (2) is provided above the bottom plate (1), the positioning base (2) is slidably connected to the guide column (11), a position of the guide column (11) between the positioning base (2) and the bottom plate (1) is sleeved with a return spring (111), the positioning base (2) is provided with a plurality of positioning holes (21) corresponding to the bearing mounting holes on the gear box cover workpiece, a pressure head (22) that can move up and down is penetrated in the positioning holes (21), the bottom plate (1) is provided with a plurality of horizontally arranged cylinders (12) corresponding to the number of the positioning holes (21), a cushion block (13) is fixed to the end of the piston rod of the cylinder (12), and the plurality of cylinders (12) can push the cushion block (13) connected thereto to the positioning holes in batches. A support plate (3) is fixed to the top of the plurality of guide columns (11), a vertically arranged driving cylinder (31) is fixedly mounted on the support plate (3), a piston rod of the driving cylinder (31) passes through the support plate (3) and is fixed to a pressure plate (32), the pressure plate (32) is slidably connected to the guide column (11), the pressure plate (32) is between the support plate (3) and the positioning base (2), a cylinder mounting plate (121) for fixing the cylinder (12) is provided at a position on the bottom plate (1) corresponding to the outer side of the positioning base (2), the piston rod end of the cylinder (12) is connected to a floating joint (122), and a connecting groove (131) matching the floating joint (122) is provided on one side of the cushion block (13); guide sleeves (112) are provided at the connection between the pressure plate (32) and the positioning base (2) and the guide column (11).

2. The gearbox multi-bearing press-fitting device according to claim 1, characterized in that: The positioning hole (21) comprises a limiting hole section (211) located at the upper part and having a larger hole diameter, and a guiding hole section (212) located at the lower part, the hole diameter of the guiding hole section (212) being smaller than the hole diameter of the limiting hole section (211), and the pressing head (22) comprises an upper section (221) cooperating with the limiting hole section (211) and a lower section (222) cooperating with the guiding hole section (212).

3. The gearbox multi-bearing press-fitting device according to claim 2, characterized in that: The height of the upper section (221) of the pressure head is smaller than the depth of the limiting hole section (211), and the upper end of the limiting hole section (211) can cooperate with the bearing workpiece.

Images