Differential shell drilling device

Abstract

The utility model relates to the technical field of differential machining, in particular to a differential shell drilling device which comprises an operation table, and a fixing mechanism is arranged at the top end of the operation table. The fixing mechanism comprises a placing ring fixedly connected to the top end of the operation table, a first bolt is rotationally connected to the middle of the bottom end of the operation table, a circular ring is in threaded connection with the outer side of the first bolt, four sliding rods are slidably connected to the top end of the operation table, and the bottom end of each sliding rod penetrates out of the bottom end of the operation table and then is hinged to a connecting rod. The other ends of the four connecting rods are hinged to the outer side face of the circular ring, the top end of the sliding rod is fixedly connected with a U-shaped frame, the top of the U-shaped frame is in threaded connection with a second bolt, and the bottom end of the second bolt rotationally penetrates through the U-shaped frame and is rotationally connected with a fixing plate. The differential shell is placed on the placing ring, and then the differential shell is clamped in an abutting mode through the four U-shaped frames, so that the punching effect of an electric drill bit on the differential shell is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to differential mechanism processing technical field, especially a differential mechanism shell drilling device. BACKGROUND

[0002] The differential mechanism is a kind of mechanical device commonly seen in vehicle transmission system, and its main function is to allow driving wheel to rotate at different speeds, thereby improving the stability and maneuverability of vehicle when turning.The differential mechanism shell is an important component of differential mechanism, and its main function is to protect and support the internal mechanical components of differential mechanism, in order to ensure the use requirement of differential mechanism shell, it needs to continue drilling treatment in production and processing process.

[0003] Through the setting of clamping mechanism, the differential mechanism shell drilling device of Chinese patent "CN221454411U" can be placed into processing groove by staff, the first spring is compressed by the displacement of extrusion clamp block, when the differential mechanism shell is clamped into suitable position, extrusion clamp block will leave the extrusion of shell and reset under the action of elastic force of first spring, so as to effectively clamp differential mechanism shell with processing groove, which is convenient for staff to process drilling.

[0004] Although the extrusion clamp block in the above application can fix the differential mechanism shell, it only relies on the action force of first spring to extrusion clamp block during fixing, since spring itself has elasticity, and vibration will be generated when drilling differential mechanism shell, which will cause the displacement of differential mechanism shell during drilling process, and affect the precision of drilling.

[0005] Therefore, a differential mechanism shell drilling device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0006] The purpose of the utility model is to provide differential mechanism shell drilling device to solve the above problems, which improves the problem that the above application only relies on the action force of first spring to extrusion clamp block during fixing, since spring itself has elasticity, and vibration will be generated when drilling differential mechanism shell, which will cause the displacement of differential mechanism shell during drilling process, and affect the precision of drilling.

[0007] The utility model discloses a differential mechanism shell drilling device through following technical scheme to realize above -mentioned purpose, including operation platform, the top of operation platform is provided with fixed mechanism, the fixed mechanism includes the placement ring of fixed connection in the top of operation platform, the bottom middle part rotationally connected of operation platform has first bolt, the outside thread connection of first bolt has circular ring, the top of operation platform is slidably connected with four number's slide bar, four the slide bar is annular distribution, and the bottom of each slide bar all is out of the bottom of operation platform after and is hinged with connecting rod, and the other end of four connecting rods all is hinged and is connected on the outside of circular ring, and the top of each slide bar all is fixedly connected U shape frame, and the top of each U shape frame all is threadedly connected with second bolt, and the bottom of second bolt extends to the inside of U shape frame and is rotatably connected with fixed plate.

[0008] Preferably, the top rear side of the operation platform is fixedly connected with a fixing frame, the top plate body of the fixing frame is fixedly connected with an electric push rod, the extending rod of the electric push rod slidably extends through the top plate body of the fixing frame and is fixedly installed with an electric circular plate, the inside of the electric circular plate is rotatably connected with a lead screw, the outside of the lead screw is threadedly connected with a sliding block, and the bottom of the sliding block slidably extends to the bottom of the electric circular plate and is installed with an electric drill bit. By adjusting the distance between the electric drill bit and the center point of the electric circular plate, the electric drill bit can be punched in different diameter annular paths, and the fixed mechanism is used in cooperation to improve the practicability of the device.

[0009] Preferably, the top of the fixed plate is fixedly connected with a circular rod, and the top of the circular rod slidably extends to the top outside of the U-shaped frame. The circular rod is beneficial to limiting the up-and-down movement of the fixed plate, ensuring the stability of the up-and-down movement of the fixed plate.

[0010] Preferably, the inner wall of the U-shaped frame is fixedly connected with a contact pad on one side, and a plurality of grooves are arranged on the surface of the contact pad. The contact pad is beneficial to increasing the friction between the inner wall of the U-shaped frame and the surface of the differential mechanism shell.

[0011] Preferably, the fixed plate is curved into an arc shape as a whole, and the bottom of the fixed plate is fixedly connected with a rubber pad. The rubber pad is beneficial to strengthening the friction between the bottom of the fixed plate and the surface of the differential mechanism shell, improving the stability of the fixed plate when fixing the differential mechanism shell.

[0012] Preferably, an angle is formed between the side of the U-shaped frame inner bottom wall and the horizontal plane. The angle is beneficial to the side edge of the differential mechanism shell entering the inside of the U-shaped frame.

[0013] Preferably, four sliding grooves are arranged on the top of the operation platform, the top of the slide rod slidably passes through the corresponding sliding groove, and the outer wall of the slide rod is slidably connected with the inner wall of the corresponding sliding groove, ensuring the stability of the slide rod when moving.

[0014] Preferably, the horizontal height of the inner bottom wall of the U-shaped frame is the same as the horizontal height of the top end of the placement ring, which is beneficial to the stability of the fixed differential case.

[0015] The utility model discloses the beneficial effect is:

[0016] The utility model discloses a fixing mechanism, which is characterized by placing the differential case on the placement ring, which is beneficial to preliminarily limiting the position of the differential case, rotating the first bolt to drive the circular ring to move downward, and under the action of the four connecting rods and the corresponding slide rods, the four U-shaped frames are driven to move close to the differential case and abut against the surface of the differential case, thereby preliminarily fixing the differential case. By rotating the second bolt in sequence to push the fixing plate from above to abut against the differential case, the stability of the fixed differential case is ensured, and displacement of the differential case during the punching process is avoided. At the same time, the fixing mechanism is beneficial to fixing differential cases of different diameters, and the four U-shaped frames are used to move synchronously, which is beneficial to keeping the differential case in a centered state with the placement ring after fixing, thereby ensuring the punching effect of the electric drill bit on the differential case and improving the punching precision.

[0017] In the utility model, under the interaction of the lead screw and the slide block, the distance between the electric drill bit and the center point of the electric circular plate can be adjusted, which is beneficial to making the electric drill bit punch in a circular path of different diameters. In combination with the fixing mechanism, the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a sectional view of the operation table of the utility model;

[0020] Figure 3 It is a fixing mechanism structure schematic view of the utility model;

[0021] Figure 4 It is a fixing plate structure schematic view of the utility model;

[0022] Figure 5 It is an electric drill bit and slide block mounting structure schematic view of the utility model.

[0023] In the drawings: 1, operation table; 2, fixing mechanism; 21, placement ring; 22, first bolt; 23, slide rod; 24, connecting rod; 25, circular ring; 26, U-shaped frame; 27, second bolt; 28, fixing plate; 29, contact pad; 210, circular rod; 211, sliding groove; 3, fixing frame; 31, electric push rod; 32, electric circular plate; 33, lead screw; 34, slide block; 35, electric drill bit. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In practical implementation: such as Figures 1-5 As shown, a differential housing drilling device includes an operating platform 1, with a fixing mechanism 2 at the top of the operating platform 1. The fixing mechanism 2 includes a placement ring 21 fixedly connected to the middle of the top of the operating platform 1, a first bolt 22 rotatably connected to the bottom of the operating platform 1, a ring 25 threadedly connected to the outer side of the first bolt 22, four sliding rods 23 slidably connected to the top of the operating platform 1, the four sliding rods 23 being arranged in a ring, the bottom end of each sliding rod 23 penetrating through the bottom of the operating platform 1 and hinged to a connecting rod 24, the four connecting rods 24 being hinged to the outer side of the ring 25, a U-shaped frame 26 fixedly connected to the top of each sliding rod 23, a second bolt 27 threadedly connected to the top of each U-shaped frame 26, the bottom end of the second bolt 27 extending through to the inner side of the U-shaped frame 26 and rotatably connected to a fixing plate 28.

[0026] The included angle between the center points of any two adjacent sliding rods 23 is 90 degrees, and the distances between all four sliding rods 23 and the center of the placement ring 21 are the same. Therefore, the center of the ring formed by the four sliding rods 23 is the same as the center of the placement ring 21. When the first bolt 22 is rotated, causing the ring 25 to move up and down, the ring 25 will pull the four sliding rods 23 synchronously towards the placement ring 21 through the four connecting rods 24. During the movement, the distance between the center points of the four sliding rods 23 and the center of the placement ring 21 remains the same.

[0027] like Figure 5 As shown, a fixed frame 3 is fixedly connected to the rear top of the operating table 1. An electric push rod 31 is fixedly connected to the top plate of the fixed frame 3. The electric push rod 31 is located above the ring 25. The extension rod of the electric push rod 31 slides through the top plate of the fixed frame 3 and is fixedly installed with an electric circular plate 32. A lead screw 33 is rotatably connected inside the electric circular plate 32. A slider 34 is threadedly connected to the outside of the lead screw 33. The bottom end of the slider 34 slides to the bottom of the electric circular plate 32 and is installed with an electric drill bit 35.

[0028] The electric round plate 32 comprises a first driving motor and a round plate. The driving motor is fixedly connected with the extension rod of the electric push rod 31, and the round plate is fixedly connected with the output shaft of the first driving motor. The center of the round plate is in the same straight line with the center of the placing ring 21. When it is needed to adjust the drilling position of the electric drill bit 35 on the annular path, the first driving motor is started to drive the round plate to rotate through the controller.

[0029] The electric drill bit 35 comprises a second driving motor and a drill bit. The top end of the second driving motor is fixedly connected with the bottom end of the sliding block 34, and the output shaft of the second driving motor is connected with the top end of the drill bit. The second driving motor is started to drive the drill bit to rotate through the controller, and then the drilling operation can be performed.

[0030] The inside of the round plate is rotatably provided with a screw rod 33, and the bottom of the round plate is provided with a limiting groove in communication with the inside. The sliding block 34 slides through the limiting groove, and one end of the screw rod 33 is rotatably penetrated out of the round plate and fixedly connected with a knob. The knob is rotated to drive the screw rod 33, so as to drive the sliding block 34 to move, thereby adjusting the distance between the electric drill bit 35 and the center point of the round plate.

[0031] As shown in Figure 4 , the top end of the fixed plate 28 is fixedly connected with a round rod 210, and the top end of the round rod 210 is slidably penetrated to the top outside of the U-shaped frame 26. The round rod 210 is slidably connected with the top of the U-shaped frame 26, and the second bolt 27 is rotated to drive the fixed plate 28 to move, and the round rod 210 limits the movement of the fixed plate 28.

[0032] As shown in Figure 4 , the inner wall of the U-shaped frame 26 is fixedly connected with a contact pad 29 on one side, and a plurality of grooves are arranged on the surface of the contact pad 29. The contact pad 29 is made of rubber, and the plurality of grooves are vertically arranged.

[0033] As shown in Figure 4 , the fixed plate 28 is curved into an arc shape as a whole, and the bottom end of the fixed plate 28 is fixedly connected with a rubber pad. The length of the fixed plate 28 is greater than the width of the U-shaped frame 26, and when the fixed plate 28 is fixed to the differential housing, the surface of the rubber pad is tightly abutted against the surface of the differential housing.

[0034] As shown in Figure 4 , an included angle is formed between the side of the inner bottom wall of the U-shaped frame 26 and the horizontal plane. The horizontal height of the inner bottom wall of the U-shaped frame 26 is the same as the horizontal height of the top end of the placing ring 21. When the differential housing is placed on the placing ring 21 and the sliding rod 23 is driven to move the U-shaped frame 26 towards the placing ring 21, in the process of moving, the side surface of the differential housing will enter the U-shaped frame 26, and the inner bottom wall of the U-shaped frame 26 will be in contact with the bottom end of the side of the differential housing.

[0035] As shown in Figure 2As shown, the top end of the operation platform 1 is provided with four number of sliding grooves 211, the top end of the sliding rod 23 is slidably arranged through the corresponding sliding groove 211, and the outer wall of the sliding rod 23 is slidably connected with the inner wall of the corresponding sliding groove 211, so that the movement of the sliding rod 23 is limited.

[0036] The utility model discloses in using, the differential mechanism shell is placed at the top of the placing ring 21, and rotates the first bolt 22 and drives the annular ring 25 to move down, at this time, the annular ring 25 will drive the other end of four connecting rods 24 synchronous downward movement, thereby making the one end of connecting rod 24 pull the bottom end of corresponding sliding rod 23 and move down, because the bottom end of sliding rod 23 is hinged with the one end of connecting rod 24, makes four sliding rods 23 move to the direction of placing ring 21 simultaneously, and four U-shaped frames 26 will approach each other, the side surface of differential mechanism shell will enter U-shaped frame 26 during the movement of U-shaped frame 26, at this time, continue to drive U-shaped frame 26 to move, when U-shaped frame 26 can not continue to move, the inner wall of U-shaped frame 26 one side and the side surface of differential mechanism shell abut tightly, and the bottom end of differential mechanism shell and the inner bottom wall of U-shaped frame 26 contact, and differential mechanism shell and placing ring 21 are in the central state, then, the staff rotates a plurality of second bolts 27 in proper order and drives fixed plate 28 to move down, makes fixed plate 28 from above and tightly abuts against differential mechanism, so that the differential mechanism shell is in stable state,

[0037] When the differential mechanism shell is fixed, the position of the electric drill bit 35 is adjusted according to the annular path required by the differential mechanism shell, and the sliding block 34 drives the electric drill bit 35 to move by rotating the screw rod 33 during adjustment, so that the distance between the electric drill bit 35 and the center of the electric circular plate 32 is adjusted, and the electric drill bit 35 is driven to operate after adjustment, and the electric drill bit 35 is pushed down by the electric push rod 31 to perform punching operation.

[0038] It should be noted that the motor, the electric push rod 31 and the like in the above description are all relatively mature devices in the prior art, and the specific model can be selected according to actual needs, and the motor and the electric push rod 31 can be powered by an internal power supply or a mains power supply, and the specific power supply mode is selected as needed, which will not be described here.

[0039] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A differential case drilling apparatus, characterized by, Including the operating platform (1), the top of the operating platform (1) is provided with a fixing mechanism (2); The fixing mechanism (2) comprises a placing ring (21) fixedly connected to the top of the operating platform (1), a first bolt (22) rotatably connected to the middle of the bottom of the operating platform (1), a circular ring (25) threadedly connected to the outer side of the first bolt (22), four slide rods (23) slidably connected to the top of the operating platform (1), the four slide rods (23) being annularly distributed, a connecting rod (24) hingedly connected to the bottom of each of the slide rods (23) after penetrating out of the bottom of the operating platform (1), the other end of each of the four connecting rods (24) being hingedly connected to the outer side of the circular ring (25), a U-shaped frame (26) fixedly connected to the top of each of the slide rods (23), a second bolt (27) threadedly connected to the top of each of the U-shaped frames (26), and a fixing plate (28) rotatably connected to the bottom of the second bolt (27) and extending into the inner side of the U-shaped frame (26).

2. A differential case drilling apparatus as defined in claim 1, wherein: The top of the operating platform (1) is fixedly connected with a fixing frame (3), the top plate body of the fixing frame (3) is fixedly connected with an electric push rod (31), the extending rod of the electric push rod (31) slidably penetrates through the top plate body of the fixing frame (3) and is fixedly installed with an electric circular plate (32), the inner side of the electric circular plate (32) is rotatably connected with a lead screw (33), the outer side of the lead screw (33) is threadedly connected with a sliding block (34), and the bottom of the sliding block (34) slidably penetrates through and extends to the bottom of the electric circular plate (32) and is installed with an electric drill bit (35).

3. A differential case drilling apparatus as defined in claim 1, wherein: The top of the fixing plate (28) is fixedly connected with a circular rod (210), and the top of the circular rod (210) slidably penetrates through and extends to the top of the outer side of the U-shaped frame (26).

4. A differential case drilling apparatus as defined in claim 1, wherein: The inner wall of the U-shaped frame (26) is fixedly connected with a contact pad (29) on one side, and a plurality of grooves are arranged on the surface of the contact pad (29).

5. A differential case drilling apparatus as defined in claim 1, wherein: The fixing plate (28) is curved into an arc shape as a whole, and the bottom of the fixing plate (28) is fixedly connected with a rubber pad.

6. A differential case drilling apparatus as described in claim 1, wherein: An included angle is formed between the inner bottom wall of the U-shaped frame (26) and the horizontal plane.

7. A differential case drilling apparatus as defined in claim 1, wherein: The top of the operating platform (1) is provided with four slide grooves (211), the top of the slide rod (23) slidably penetrates through the corresponding slide groove (211), and the outer wall of the slide rod (23) is slidably connected with the inner wall of the corresponding slide groove (211).

8. A differential case drilling apparatus as defined in claim 1, wherein: The horizontal height of the inner bottom wall of the U-shaped frame (26) is the same as the horizontal height of the top of the placing ring (21).

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