CN111438509A - Gearbox multi-bearing press-fit device - Google Patents

Abstract

The invention relates to a gear box 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 with the guide columns, and the guide columns The position between the positioning base and the bottom plate is sleeved with a return spring, the positioning base is provided with a plurality of positioning holes, the positioning holes are provided with a pressure head, and the bottom plate is provided with a plurality of cylinders, A spacer block is fixed at the end of the piston rod of the cylinder, and the plurality of cylinders can push the spacer block connected with it to the bottom of the positioning hole in stages and support the lower end of the pressure head, and the top of the several guide columns is fixed with a support plate A drive cylinder is fixed on the support plate, the piston rod of the drive cylinder is fixed with the pressure plate through the support plate, and the pressure plate is slidably connected with the guide column. The invention has the characteristics of simple and time-saving press-fitting for a plurality of bearing workpieces, low input cost and high press-fitting quality.

Description

Gearbox multi-bearing press-fit device

technical field

The invention relates to a gear box multi-bearing press-fitting device, which belongs to the technical field of gear box component assembly.

Background technique

When press-fitting the bearing workpieces on the gearbox cover, if multiple bearing workpieces are pressed onto the gearbox cover at the same time, there will be a certain error between the bearing workpieces and the bearing mounting holes of the gearbox cover. Press-fitting of bearing workpieces will damage the gearbox cover and bearing workpiece, affecting the quality of press-fitting, or enable multiple equipment to press-fit multiple bearing workpieces at the same time. Such press-fitting is very time-consuming and cumbersome, and at the same time increases investment costs. .

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a gear box multi-bearing press-fitting device, which solves the problems of the prior art that the press-fitting of multiple bearing workpieces is time-consuming and cumbersome, the investment cost is high, and the press-fitting quality is low.

The above technical purpose of the present invention is mainly solved by the following technical solutions: a gear box multi-bearing press-fitting device, comprising a bottom plate, a plurality of vertically arranged guide columns are arranged on the bottom plate, and a positioning column is arranged above the bottom plate The base, the positioning base is slidably connected with the guide column, the position of the guide column between the positioning base and the bottom plate is sleeved with a return spring, and the positioning base is provided with a plurality of A positioning hole corresponding to the bearing installation hole, a pressure head that can move up and down is drilled in the positioning hole, and a plurality of horizontally arranged cylinders corresponding to the number of positioning holes are arranged on the bottom plate. A spacer block is fixed at the end of the rod, and the plurality of cylinders can push the spacer block connected with it to the bottom of the positioning hole in stages and support the lower end of the pressure head. A vertically arranged driving cylinder is installed and fixed on the upper part. 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. The pressure plate is between the support plate and the positioning base Through the setting of the above positioning holes, each bearing workpiece can be pre-positioned through the positioning holes before the box cover is press-fitted, so as to ensure that the positions of each bearing workpiece and the bearing mounting holes correspond to the positions of the bearing mounting holes and improve the press-fitting accuracy. The setting is convenient for supporting the bearing workpiece, so that the bearing workpiece can be pressed into the bearing mounting hole, so as to ensure the strength and stability during press-fitting, and the above-mentioned setting of the cylinder and the spacer block enables the bearing workpiece to be press-fitted. Through the cooperation of a single spacer and an indenter, the bottom of a single bearing workpiece is supported, so that multiple bearing workpieces in the same equipment can be pressed one by one, and there is no need to move the box cover and set up multiple devices. The operation steps are simplified, the pressing time is saved, and the input cost is reduced at the same time; through the setting of the above-mentioned positioning base and the compression spring, when the above-mentioned pressing plate is pressed down, the positioning base can be driven to move down, so that the pressing head can be moved relatively upward, and the top Move the bearing workpiece, so that the bearing workpiece can be completely and completely pressed onto the box cover to ensure that the bearing workpiece can be pressed in place. Through the above-mentioned setting of the pressure plate, the box cover can realize the pressing of the bearing through the downward movement of the pressure plate, so as to ensure the smoothness of the pressure plate during the pressing of the box cover, thereby ensuring the accuracy of the bearing workpiece during the pressing and improving. The press fit quality of the bearing workpiece.

Preferably, the positioning hole includes a limit hole section with a larger diameter at the upper part and a guide hole section at the lower part, the diameter of the guide hole section is smaller than the diameter of the limit hole section, and the indenter includes and the limit hole section. The upper section matched with the hole section and the lower section matched with the guide hole section; through the setting of the limit hole section and the guide hole section, the pressure head can be prevented from falling down from the positioning hole, and the pressure head can be extended out of the positioning hole and The pads are in contact, and at the same time, when the positioning base moves upwards, the indenter can be moved upwards, so as to avoid interference with the next movement of the pads.

Preferably, the height of the upper section of the indenter is less than the depth of the limit hole section, and the upper end of the limit hole section can cooperate with the bearing workpiece; through the above setting of the depth of the limit hole section, the above-mentioned bearing The workpiece can be placed in the positioning hole before pressing to realize the pre-installation and 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.

Preferably, a cylinder mounting plate for fixing the cylinder is provided on the bottom plate at a position corresponding to the outside of the positioning base, the end of the piston rod of the cylinder is connected with a floating joint, and one side of the cushion block is provided with a floating joint The matching connecting groove; the setting of the above-mentioned cylinder mounting plate facilitates the fixing of the cylinder and ensures the stable arrangement of the cylinder, and the setting of the connecting groove enables a certain floating space between the cushion block and the cylinder rod to avoid Insufficient precision leads to mutual dislocation between the cushion block and the cylinder rod, which damages the cylinder rod, improves the fault tolerance rate when connecting the cushion block and the cylinder output shaft, and ensures that the cylinder rod can stably drive the cushion block to move.

Preferably, a guide sleeve is provided at the connection between the pressure plate and the positioning base and the guide column; the arrangement of the above-mentioned guide sleeve facilitates the movement of the pressure plate and the positioning base, increases the smoothness of the movement of the pressure plate and the positioning base, and Keep the platen and positioning base moving smoothly.

Therefore, 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 of drawings

1 is a perspective structural view of the present invention in a standby state;

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

Fig. 3 is the three-dimensional structure diagram of the present invention under the state of press-fitting;

FIG. 4 is a structural cross-sectional view of the present invention from another perspective in a press-fit state;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 .

Detailed ways

The technical solutions of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

As shown in Figures 1-5, a gear box multi-bearing press-fitting device includes a base plate 1, a plurality of vertically arranged guide columns 11 are arranged on the base plate 1, a positioning base 2 is arranged above the base plate 1, and the positioning base 2 is connected to the base plate 1. The guide column 11 is slidably connected. The 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 bearing mounting holes corresponding to the workpiece on the gearbox cover. The positioning hole 21 is provided with a pressure head 22 that can move up and down, the bottom plate 1 is provided with a plurality of horizontally arranged cylinders 12 corresponding to the number of positioning holes 21, and the end of the piston rod of the cylinder 12 is fixed There are spacers 13, and a plurality of cylinders 12 can push the spacers 13 connected to them to the bottom of the positioning hole 21 and support the lower end of the pressure head 22 in stages. A vertically arranged driving cylinder 31 is fixed, the piston rod of the driving cylinder 31 is fixed to the pressure plate 32 through the support plate 3, the pressure plate 32 is slidably connected with the guide column 11, and the pressure plate 32 is between the support plate 3 and the positioning base 2, through the The setting of the above-mentioned positioning holes enables the box cover to pre-position each bearing workpiece through the positioning holes before the press-fitting, so as to ensure that the positions of each bearing workpiece and the bearing mounting holes correspond to the positions of the bearing mounting holes, and improve the pressing-fitting accuracy. In order to support the bearing workpiece, the bearing workpiece can be pressed into the bearing installation hole to ensure the strength and stability during press-fitting, and the above-mentioned setting of the cylinder and the spacer block enables the bearing workpiece to pass through a single pad during press-fitting. The cooperation of the block and the indenter supports the bottom of a single bearing workpiece, so that multiple bearing workpieces in the same equipment can be pressed one by one, and there is no need to move the box cover and set up multiple equipment, which simplifies the operation steps. , saves the press-fitting time, and reduces the input cost at the same time; the above-mentioned floating joint is an existing product on the market, which is an existing technology, and will not be repeated here; The cylinder mounting plate 121 of the cylinder 12 is fixed, the end of the piston rod of the cylinder 12 is connected with the floating joint 121, and one side of the cushion block 13 is provided with a connecting groove 131 which is matched with the floating joint 121. It is used to fix the cylinder to ensure the stability of the arrangement of the cylinder, and the setting of the connecting groove makes a certain floating space between the cushion block and the cylinder rod, so as to avoid the misalignment between the cushion block and the cylinder rod due to insufficient precision. If the rod is damaged, the fault tolerance rate of the connection between the cushion block and the cylinder output shaft is improved, and at the same time, the cylinder rod can stably drive the cushion block to move.

One end of the above floating joint is connected with the cylinder rod of the cylinder, and the other end of the floating joint is connected with the cushion block, and the floating joint can move up and down in the cushion block; The head is located under the bearing and placed in the positioning hole, and then one of the cylinders is activated, the cylinder drives a spacer to move under 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 Then start to press-fit the box cover and the bearing workpiece. After the press-fit is completed, the next cylinder starts to control the spacer connected to it to continue to move for press-fit.

As shown in Fig. 3-5, the positioning hole 21 includes a limit hole segment 211 with a larger diameter at the upper part and a guide hole segment 212 at the lower part. The diameter of the guide hole segment 212 is smaller than that of the limit hole segment 211. 22 includes an upper section 221 matched with the limit hole section 211 and a lower section 222 matched with the guide hole section 212, through the setting of the limit hole section and the guide hole section, the indenter can be prevented from falling down from the positioning hole, and It is ensured that the indenter can extend out of the positioning hole to contact the cushion block, and at the same time, when the positioning base moves up, the indenter can be moved up, so as to avoid interference with the next movement of the cushion block; the height of the upper section 221 of the indenter is smaller than the limit hole. The depth of the limit hole section 211, the upper end of the limit hole section 211 can cooperate with the bearing workpiece. Through the above-mentioned setting of the depth of the limit hole section, the bearing workpiece can be placed in the positioning hole before pressing, so as to realize the matching of the bearing workpiece. The pre-installation and positioning of the bearing workpiece facilitates the precise placement of the box cover workpiece and enhances the accuracy of the bearing workpiece during pressing; after the indenter is placed in the limit hole section, there is still space above the indenter for the bearing When the positioning base moves up by the action of the return spring, it will drive the indenter to move up, so that the distance between the bottom of the indenter and the bottom plate is greater than the height of the pad, so that the next pad can be moved to the bottom of the indenter.

After the box cover workpiece is placed above the bearing workpiece, the driving cylinder is activated, and the driving cylinder drives the pressure plate to move down gradually. After the pressure plate contacts the box cover workpiece, it continues to move downward. The box cover workpiece and the positioning base are connected and positioned by a bolt to avoid the box cover. When the workpiece is pressed, the displacement occurs to ensure the accuracy of pressing. After the pressing plate continuously presses the box cover workpiece, the pressing plate will drive the positioning base to move down, and the return spring contracts. The head cannot move down, and moves up relative to the positioning base, push the bearing workpiece into the bearing installation hole, until the bearing workpiece is completely pressed in place, the driving cylinder drives the pressure plate to move, cancels the downward pressure, and the positioning base is in the position of the return spring. Under the action, it will automatically move up, driving the pressure head and the box cover workpiece to move up until the positioning base stops moving up, thus completing the press-fitting of the bearing workpiece.

Claims (5)

1. The utility model provides a gear box multiaxis bearing device, includes bottom plate (1), its characterized in that: the gearbox cover is characterized in that a plurality of vertically arranged guide posts (11) are arranged on the bottom plate (1), a positioning base (2) is arranged above the bottom plate (1), the positioning base (2) is in sliding connection with the guide posts (11), a reset spring (111) is sleeved at the position, between the positioning base (2) and the bottom plate (1), of the guide posts (11), a plurality of positioning holes (21) corresponding to bearing mounting holes in a gearbox cover workpiece are formed in the positioning base (2), pressure heads (22) capable of moving up and down are arranged in the positioning holes (21), a plurality of cylinders (12) which are horizontally arranged and correspond to the positioning holes (21) in number are arranged on the bottom plate (1), cushion blocks (13) are fixed at the end portions of piston rods of the cylinders (12), the cylinders (12) can push cushion blocks (13) connected with the cylinders to the positions below the positioning holes (21) in multiple times and support the lower ends of the pressure heads (22), the top of a plurality of guide posts (11) is fixed with backup pad (3), the installation is fixed with the vertical drive actuating cylinder (31) that sets up on backup pad (3), the piston rod that drives actuating cylinder (31) passes backup pad (3) are fixed with clamp plate (32), clamp plate (32) with guide posts (11) sliding connection, clamp plate (32) are between backup pad (3) and positioning base (2).

2. A gearbox multi-shaft bearing press device as defined in claim 1 wherein: the locating hole (21) comprises a limiting hole section (211) located on the upper portion and large in aperture and a guide hole section (212) located on the lower portion, the aperture of the guide hole section (212) is smaller than that of the limiting hole section (211), and the pressure head (22) comprises an upper section (221) matched with the limiting hole section (211) and a lower section (222) matched with the guide hole section (212).

3. A gearbox multi-shaft bearing press device as defined in claim 2 wherein: 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 be matched with a bearing workpiece.

4. A gearbox multi-shaft bearing press device as defined in claim 1 wherein: the bottom plate 1 is provided with a cylinder mounting plate (121) used for fixing a cylinder (12) corresponding to the position outside the positioning base (2), the end part of a piston rod of the cylinder (12) is connected with a floating joint (122), and one side of the cushion block (13) is provided with a connecting groove (131) matched with the floating joint (122).

5. A gearbox multi-shaft bearing press device as defined in claim 1 wherein: and guide sleeves (112) are arranged at the joints of the pressure plate (32) and the positioning base (22) and the guide columns (11).

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