Intelligent drilling equipment for differential housing production

Abstract

The application discloses a kind of intelligent drilling equipment for differential mechanism shell production, it is related to the technical field of differential mechanism production, including lathe, drilling unit and clamping unit are equipped on the lathe, the differential mechanism shell includes left half shell and right half shell fixed by flange, the clamping unit includes the clamping seat of horizontal floating arrangement on lathe and the jaw assembly of arrangement on clamping seat, synchronous inserting rod is equipped on the drilling unit;In the drilling processing stroke of differential mechanism shell, the synchronous inserting rod is inserted into the right half shell fixed by jaw assembly clamping;Dynamic monitoring unit for monitoring the working state of drill bit is arranged on the drilling unit.

Description

Technical Field

[0001] This invention relates to the technical field of differential manufacturing, specifically to an intelligent drilling device for differential housing manufacturing. Background Technology

[0002] As is widely known, the differential is a core component of a car's transmission system, installed within the drive axle. While transmitting torque, it allows for a speed difference between the two wheels, enabling pure rolling and preventing tire wear during cornering. Its working principle is as follows: When the car is traveling straight, the resistance on both wheels is the same, and the planetary gears in the differential only revolve around the central axis, not on their own axis. The left and right half-shafts rotate at the same speed, and the torque is evenly distributed. When the car is cornering, the outer wheel travels a longer distance and rotates at a higher speed, while the inner wheel rotates at a lower speed. The planetary gears in the differential rotate on their own axis to compensate for the speed difference, and the torque is still evenly distributed on both sides.

[0003] The differential housing is a basic component of the differential assembly. It belongs to the heavy-duty rotating housing category. It serves as the planet carrier of the planetary gears and is rigidly connected to the driven bevel gear of the main reducer. It withstands torque, impact, and alternating bending, and is a key load-bearing component of the drive axle. During the manufacturing process of the differential housing, some holes need to be drilled later. For example, in the case of a two-half split differential housing, there are bolt holes for connecting the two halves of the housing and bolt holes for mounting the driven large gear ring. For example, patent CN223684478U, published on December 19, 2025, entitled "A Differential Housing Drilling Device," includes an operating platform with a fixing mechanism at its top. The fixing mechanism includes a placement ring fixedly connected to the top of the operating platform, a first bolt rotatably connected to the center of the bottom of the operating platform, a ring threaded to the outer side of the first bolt, and four sliding rods slidably connected to the top of the operating platform. The bottom end of each sliding rod extends through the bottom of the operating platform and is hinged to a connecting rod. The other ends of the four connecting rods are hinged to the outer surface of the ring. A U-shaped frame is fixedly connected to the top of the sliding rod, and a second bolt is threaded to the top of the U-shaped frame. The bottom end of the second bolt rotatably passes through the U-shaped frame and is rotatably connected to a fixing plate. This invention ensures the drilling effect of the electric drill bit on the differential housing by placing the differential housing on the placement ring and then clamping it with the four U-shaped frames.

[0004] The shortcomings of the existing technology, including the above, are that when drilling the differential housing, although the clamping unit and the drilling unit are arranged on the same machine tool, the clamping unit is fixedly connected to the machine tool. In actual operation, the drilling unit needs to apply rotational force and downward pressure, while the clamping unit only needs to clamp the housing. As a result, the clamping unit will be forced to vibrate through the housing being processed. Obviously, the vibration frequency of the clamping unit and the vibration frequency of the drilling unit are difficult to synchronize, which makes it difficult to effectively improve the drilling accuracy of the differential housing. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent drilling device for the production of differential housings, solving the technical problems in related technologies. To achieve the above objective, this invention provides the following technical solution: A smart drilling device for producing differential housings includes a machine tool with a drilling unit and a clamping unit. The differential housing includes a left half-shell and a right half-shell fixed by a flange. The clamping unit includes a clamping seat horizontally floating on the machine tool and a jaw assembly arranged on the clamping seat. The drilling unit is equipped with a synchronizing rod. During the drilling process of the differential housing, the synchronizing rod is inserted into the right half-shell that is clamped and fixed by the jaw assembly. The drilling unit is equipped with a dynamic monitoring unit for monitoring the working status of the drill bit.

[0006] As described above, the clamping seat includes a support portion that floats horizontally with the machine tool and a clamping rod for inserting the left half-shell. The clamping rod is slidably arranged at the central axis of the support portion. The jaw assembly includes a support ring slidably disposed on the outer wall of the clamping portion, and the clamping rod is connected to the support ring by a connecting rod. Several jaw rods are arranged circumferentially on the support ring. The synchronizing rod is an elastic telescopic structure. During the drilling process of the differential housing, based on the pushing action of the synchronizing rod, the clamping force of the jaw rod on the differential housing gradually increases.

[0007] As mentioned above, the surface of the synchronizing insert used for insertion into the right half-shell is made of elastic cushioning material.

[0008] The portion of the aforementioned synchronizing insert used for insertion into the right half-shell includes a tapered section and a cylindrical section.

[0009] As described above, the external shape of the part of the support that contacts the left half shell matches the external shape of the end of the left half shell used to install the power output shaft.

[0010] As described above, the support portion is provided with a side baffle, and an elastic top baffle is arranged between the side baffle and the support ring.

[0011] The aforementioned support includes a support seat that is horizontally floating on the machine tool and a support column that is slidably arranged in the axial direction of the support seat. A first elastic element is provided between the support column and the support seat. A plurality of vertical grooves and a plurality of inclined grooves are arranged axially on the outer wall of the support column, and the plurality of vertical grooves and the plurality of inclined grooves are arranged alternately. A ball bearing is installed on the support seat. The ball bearing can roll in the vertical grooves and the inclined grooves. The depth of the lower end of the vertical groove is less than the depth of the lower end of the inclined groove, and the depth of the upper end of the vertical groove is greater than the depth of the upper end of the inclined groove.

[0012] As described above, an elastic telescopic rod is fixed to the support base by bolts, and the ball bearings are rolled and installed at the end of the extendable portion of the elastic telescopic rod.

[0013] As described above, a mounting plate is fixedly connected to the part of the drilling unit used to hold the drill bit. The synchronizing rod is fixedly arranged at the center of the mounting plate. Several positioning rods are arranged circumferentially on the mounting plate. The positioning rods are elastic telescopic structures. The positioning rods are used to insert into the holes drilled by the drill bit on the differential housing.

[0014] The aforementioned positioning insert for insertion into the hole drilled by the drill bit on the differential housing includes a tapered portion and a cylindrical portion, and the radial dimension of the cylindrical portion is adapted to the diameter of the hole drilled by the drill bit on the differential housing.

[0015] The beneficial effects of this invention are as follows: by horizontally floating the gripper assembly for holding the differential housing on the machine tool, and then inserting the synchronizing rod on the drilling unit into the clamped and fixed right half of the differential housing during drilling, the gripping unit and the drilling unit can basically maintain vibration synchronization when the drilling unit vibrates during drilling operations, thus effectively improving the drilling accuracy of the differential housing; and by setting a dynamic monitoring unit, the working status of the drill bit can be monitored in real time so that maintenance can be carried out in a timely manner when the working status is poor. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of an intelligent drilling device for differential housing production provided in an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of a smart drilling device for differential housing production, provided in an embodiment of the present invention, when clamping a differential housing. Figure 3 This is a three-dimensional structural diagram of an intelligent drilling device for differential housing production provided in an embodiment of the present invention when the differential housing is not clamped. Figure 4 This is a schematic diagram of the internal three-dimensional structure of a smart drilling device for differential housing production, provided in an embodiment of the present invention, when clamping a differential housing. Figure 5 This is a top view of the differential housing clamping structure of an intelligent drilling device for differential housing production provided in an embodiment of the present invention. Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure at point AA; Figure 7 for Figure 5 A schematic diagram of the cross-sectional structure at point BB.

[0018] Explanation of reference numerals in the attached figures: 1. Machine tool; 10. Left half shell; 11. Right half shell; 2. Drilling unit; 20. Drill bit; 21. Synchronous insertion rod; 210. Tapered section; 211. Cylindrical section; 22. Mounting plate; 23. Positioning insertion rod; 230. Tapered part; 231. Cylindrical part; 24. Scraper ring; 3. Clamping unit; 30. Clamping seat; 300. Support seat; 301. Floating cavity; 302. Support column; 303. Clamping insertion rod; 31. Claw assembly; 32. Support ring; 33. Connecting rod; 34. Claw rod; 35. Slide groove; 36. Vertical groove; 37. Inclined groove; 38. Ball bearing; 39. Elastic telescopic rod; 40. Side baffle; 41. Top baffle. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1 To be continued Figure 7 The present invention will now be described in further detail.

[0020] In this embodiment of the invention, an intelligent drilling device for producing differential housings is provided, including a machine tool 1. The machine tool 1 is equipped with a drilling unit 2 and a clamping unit 3. The differential housing includes a left half-shell 10 and a right half-shell 11 fixed by a flange. The clamping unit 3 includes a clamping seat 30 horizontally floating on the machine tool 1 and a jaw assembly 31 arranged on the clamping seat 30. The drilling unit 2 is equipped with a synchronous insertion rod 21. During the drilling process of the differential housing, the synchronous insertion rod 21 is inserted into the right half-shell 11, which is clamped and fixed by the jaw assembly 31. The drilling unit 2 is equipped with a dynamic monitoring unit for monitoring the working status of the drill bit 20.

[0021] Specifically, the differential housing in this embodiment consists of two halves, namely a left housing for mounting the left half-shaft and a right housing for mounting the right half-shaft. The left and right housings are connected by a flange structure. In other words, the drilling in this embodiment is for the holes on the flange structure used to connect the left and right housings. The number of these holes is usually 6 to 8. This embodiment uses 6 holes as a representative for drilling. Moreover, the drilling of the left and right housings needs to be carried out in the closed state to ensure that each pair of holes on the two halves of the housing will not be misaligned.

[0022] The drilling equipment includes a drilling unit 2 and a clamping unit 3. The drilling unit 2 includes a drilling motor, a differential, a drill chuck for mounting the drill bit 20, and a drive shaft for driving the drill chuck to rotate. The drill bit 20 needs to continuously travel axially during drilling operations, so the drive shaft needs to be able to extend and retract axially, which is achieved by a propulsion cylinder or hydraulic cylinder. The clamping unit 3 includes a clamping seat 30 arranged on the machine tool 1 and a jaw assembly 31 provided on the clamping seat 30. In the prior art, the jaw assembly 31 is used to clamp and fix the differential housing, so that the differential housing, clamping unit 3 and machine tool 1 are basically integrated. However, the drawback is that the drilling unit 2 needs to apply rotational force and downward pressure during operation, while the clamping unit 3 only needs to clamp the housing. Therefore, the clamping unit 3 will be forced to vibrate through the housing being processed. Thus, the vibration frequency of the clamping unit 3 and the vibration frequency of the drilling unit 2 are difficult to synchronize, which makes it difficult to effectively improve the drilling accuracy of the differential housing.

[0023] Based on the aforementioned technical issues, in this embodiment, the clamping seat 30 is arranged on the machine tool 1 in a horizontally floating manner (axial vibration is limited by the force of the pushing cylinder or hydraulic cylinder, while the machining accuracy of the hole is mainly due to the change in radial dimension). That is, a cylindrical floating cavity 301 is arranged on the machine tool 1, the clamping seat 30 is also cylindrical, and it can slide along any radial direction within the floating cavity 301. Several elastic elements are evenly arranged around it, and the elastic force of the elastic elements points towards the clamping seat 30. That is, when the clamping seat 30 is subjected to a radial force, it can slide along that radial direction within the floating cavity 301, thereby achieving the radial floating effect of the clamping seat 30. Then, a synchronizing rod 21 is set on the drilling unit 2 near the drill bit 20. Before the drill bit 20 contacts the differential housing, the synchronizing rod 21 has already... Insert the right half shell 11. When radial vibration occurs in the drilling unit 2, it can be transmitted to the differential housing and clamping unit 3 through the synchronous insertion rod 21. Thus, after the vibration of the drilling unit 2 is transmitted to the clamping unit 3, the vibration of the clamping unit 3 will not be hindered by the machine tool 1. The elastic force of the elastic element can be set to keep the clamping seat 30 at the center of the floating cavity 301 when no external force is applied (the elastic force of the elastic element can be tested according to actual operation, which will not be elaborated here). In order to ensure that the drill bit 20 can always maintain a good working condition during the drilling process, this embodiment arranges a dynamic monitoring unit on the drilling unit 2, which mainly includes displacement sensors, pressure sensors, vision sensors, etc., to monitor the drilling working status in real time so as to perform maintenance in time when the working condition is not good.

[0024] In this embodiment, the gripper assembly 31 for holding the differential housing is horizontally floated on the machine tool 1. During drilling, the synchronous insertion rod 21 on the drilling unit 2 is inserted into the right half of the differential housing 11 that is clamped and fixed. When the drilling unit 2 vibrates during drilling, the clamping unit 3 and the drilling unit 2 can basically maintain vibration synchronization, which can effectively improve the drilling accuracy of the differential housing.

[0025] Furthermore, the clamping seat 30 includes a support portion that floats horizontally with the machine tool 1 and a clamping rod 303 for inserting the left half-shell 10. The clamping rod 303 is slidably arranged at the central axis of the support portion. The jaw assembly 31 includes a support ring 32 that is slidably disposed on the outer wall of the clamping portion, and the clamping rod 303 and the support ring 32 are connected by a connecting rod 33. A plurality of jaw rods 34 are arranged circumferentially on the support ring 32. The synchronizing rod 21 is an elastic telescopic structure. During the drilling process of the differential housing, based on the pushing action of the synchronizing rod 21, the clamping force of the jaw rods 34 on the differential housing gradually increases.

[0026] Specifically, the clamping seat 30 is arranged as a split structure, that is, it includes a support part that can move radially within the floating cavity 301. Then, a clamping insertion rod 303 is slidably arranged axially at the central axis of the support part. The aforementioned synchronous insertion rod 21 is used to insert into the right half shell 11. In this embodiment, the clamping insertion rod 303 is used to insert into the left half shell 10. It is clearance-fitted with the hole on the left half shell 10 for installing the left half shaft, and the outer shape of the part of the support part that contacts the left half shell 10 matches the outer shape of the end of the left half shell 10 for installing the power output shaft. In this way, the left half shell 10 can be inserted into the right half shell 11. The semi-shell 10 is placed on the support part without easily tilting, facilitating subsequent operations. The gripper assembly 31 includes a support ring 32 that slides axially along the outer wall of the support part. A groove 35 is formed on the support part, and a connecting rod 33 slides axially within the groove 35. The connecting rod 33 connects the clamping insert 303 and the support ring 32, allowing them to move synchronously. Several gripper rods 34 are arranged circumferentially on the support ring 32, swinging on the support ring 32 in an inverted L-shape. This, in conjunction with the support part, allows for the clamping of the differential housing. The synchronizing rod 21 is configured to have an elastic telescopic function. Thus, during the stroke of the drill bit 20 approaching the differential housing, the synchronizing rod 21 first inserts into the right half-shell 11. In an optional embodiment, the surface of the synchronizing rod 21 used for inserting into the right half-shell 11 is made of elastic cushioning material. This reduces wear between the synchronizing rod 21 and the right half-shell 11, and the elastic cushioning material fills the gap between them, making the vibration transmission between the drilling unit 2 and the clamping unit 3 more stable and precise. The synchronizing rod 21 gradually contacts the clamping rod 303 and pushes it. The clamping rod 303 drives the support ring 32 to move as a whole, causing the several gripper rods 34 to move closer to the support part. This gradually increases the clamping force on the differential housing. When the clamping rod 303 can no longer be pushed and moved by the synchronous rod 21, the continued movement of the drill bit 20 will cause the synchronous rod 21 to gradually shorten and its own elastic potential energy to increase. This will further increase the clamping force on the differential housing. When the drill bit 20 drills the differential housing, the position between the left half shell 10 and the right half shell 11 will be more stable.

[0027] Preferably, the portion of the synchronizing insert 21 used for inserting into the right half-shell 11 includes a tapered section 210 and a cylindrical section 211. Specifically, the tapered section 210 makes it easier for the synchronizing insert 21 to be inserted into the right half-shell 11, and the tapered slope of the tapered section 210 can play a guiding role, so that the central axis of the synchronizing insert 21 gradually coincides with the central axis of the right half-shell 11. The cylindrical section 211 is used to keep the central axis of the synchronizing insert 21 coincides with the central axis of the right half-shell 11, resulting in higher drilling accuracy.

[0028] Furthermore, the support includes a support seat 300 horizontally floating on the machine tool 1 and a support column 302 slidably arranged in the axial direction of the support seat 300. A first elastic element is provided between the support column 302 and the support seat 300. A plurality of vertical grooves 36 and a plurality of inclined grooves 37 are arranged axially on the outer wall of the support column 302. The plurality of vertical grooves 36 and the plurality of inclined grooves 37 are arranged alternately. A ball bearing 38 is installed on the support seat 300. The ball bearing 38 can roll in the vertical grooves 36 and the inclined grooves 37. The depth of the lower end of the vertical groove 36 is less than the depth of the lower end of the inclined groove 37, and the depth of the upper end of the vertical groove 36 is greater than the depth of the upper end of the inclined groove 37.

[0029] Specifically, since six holes need to be drilled in the differential housing, the relative positions of the differential housing and the drill bit 20 need to be adjusted six times. Therefore, in this embodiment, the support is configured as a split structure, which includes a support seat 300 that floats horizontally within a floating cavity 301, and a support column 302 that slides axially on the support seat 300. The support column 302 can also rotate circumferentially on the support seat 300. A first elastic element is arranged between the support column 302 and the support seat 300. Several vertical grooves 36 and several inclined grooves 37 are alternately arranged axially on the outer wall of the support column 302. The number of vertical grooves 36 and the number of inclined grooves 37 match the number of holes drilled in the differential housing. The depth of the lower end of the vertical groove 36 is less than that of the inclined groove 37. The lower end depth of the inclined groove 37 and the upper end depth of the vertical groove 36 are greater than the upper end depth of the inclined groove 37. Thus, when the ball 38 is at the lower end of the vertical groove 36, under external force, it can only gradually rise along the inclined groove 37. Then, the interaction force between the ball 38 and the inclined groove 37 causes the support column 302 to rotate. In an optional embodiment, an elastic telescopic rod 39 is bolted to the support base 300. The ball 38 is rolled and mounted on the end of the extendable portion of the elastic telescopic rod 39. The elastic force of the first elastic element tends to keep the ball 38 at the lower end of the vertical groove 36. Thus, the position of the ball 38 is relatively fixed. When the support column 302 is subjected to external force, the support column 302 moves downward, based on the interaction force between the ball 38 and the inclined groove 37. The support column 302 rotates until the ball bearing 38 enters the high end of the next vertical groove 36. Therefore, during the drilling process, as the drill bit moves downwards and gradually approaches the differential housing, the synchronizing rod 21 first inserts into the right half of the housing 11, then pushes the clamping rod 303 downwards, causing the gripper rod 34 to gradually clamp the differential housing. After that, the clamping rod 303 can no longer be pushed downwards, so the support column 302 will be pressed downwards. The ball bearing 38 cooperates with the inclined groove 37, and the support column 302 deflects, so that the position of the next hole to be drilled on the differential housing gradually aligns with the drill bit 20. When the ball bearing 38 enters the high end of the next vertical groove 36, the downward movement of the support column 302 is blocked by the support seat 300. When the drill bit 20 continues to move downwards and approaches the differential housing, the synchronizing rod 21... The rod 21 will then shorten, and finally the drill bit 20 will begin drilling. After drilling is completed, as the drill bit 20 gradually moves upward away from the differential housing, under the rebound force of the first elastic element, the support column 302 moves upward, and the ball 38 moves along the vertical groove 36 to the lower end. In an optional embodiment, a side baffle 40 is provided on the support part, and an elastic top baffle 41 is arranged between the side baffle 40 and the support ring 32. That is, the side baffle 40 and the top baffle 41 cooperate with each other to prevent metal debris generated during drilling from entering the structure below and affecting the clamping action. The elasticity of the top baffle 41 can make the connecting rod 33 tend to always be in the middle position of the slide groove 35. Based on the rebound force of the top baffle 41, the connecting rod 33 returns to the center position of the slide groove 35.Then we begin machining the next hole.

[0030] Furthermore, a mounting plate 22 is fixedly connected to the part of the drilling unit 2 used to hold the drill bit 20. The synchronous insertion rod 21 is fixedly arranged at the center of the mounting plate 22. Several positioning insertion rods 23 are arranged circumferentially on the mounting plate 22. The positioning insertion rods 23 are elastic telescopic structures. The positioning insertion rods 23 are used to insert into the holes drilled by the drill bit 20 on the differential housing.

[0031] Specifically, during the machining of the left half-shell 10 and the right half-shell 11, it is necessary to always ensure the alignment between them to prevent misalignment of each pair of holes on the two half-shells. Therefore, in this embodiment, several positioning pins 23 are arranged circumferentially on the mounting plate 22. The number of positioning pins 23 is one less than the number of holes to be drilled, that is, five positioning pins 23, together with the drill bit 20, correspond exactly to the six holes to be drilled on the differential housing. Thus, as the drill bit 20 moves down and gradually approaches the differential housing, the positioning pins 23 first contact the right half-shell 11. If there are already drilled holes on the right half-shell 11, the corresponding positioning pin 23 will be inserted into them. The distance between the drill bit 20 and each positioning pin 23 is fixed. Therefore, before the synchronous pin 21 pushes and clamps the pin 303, the clamping force of the gripper bar 34 on the differential housing allows the differential housing to rotate under external force. The positioning rod 23 can be inserted into the pre-drilled hole to calibrate the position of the differential housing (factors that cause changes in the position of the differential housing include elastic fatigue of the elastic element connected to the support 300, which prevents the support 300 from returning to the center position of the floating cavity 301, and assembly errors between structures). The absence of a hole will hinder the movement of the positioning rod 23, causing the positioning rod 23 to gradually shorten. The auxiliary gripper rod 34 keeps the differential housing in a stable position during drilling. In an optional embodiment, the part of the positioning rod 23 used to insert into the hole drilled by the drill bit 20 on the differential housing includes a tapered part 230 and a cylindrical part 231. The radial dimension of the cylindrical part 231 is adapted to the diameter of the hole drilled by the drill bit 20 on the differential housing. The tapered part 230 makes it easier for the positioning rod 23 to be inserted into the drilled hole, and the cylindrical part 231 is used to maintain the position of the differential housing after calibration.

[0032] In an optional embodiment, a plurality of scraper rings 24 are arranged sequentially along the axial direction on the outer wall of the tapered portion 230, and the radial dimension of the scraper rings 24 increases as the radial dimension of the tapered portion 230 gradually increases. That is, during the process of the tapered portion 230 entering the drill hole, scraper rings 24 with different radial dimensions are used to gradually remove the residual metal chips and burrs in the drill hole.

[0033] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A smart drilling device for producing differential housings, comprising a machine tool, wherein the machine tool is provided with a drilling unit and a clamping unit, and the differential housing comprises a left half-shell and a right half-shell fixed by a flange, characterized in that, The clamping unit includes a clamping seat that is horizontally floating on the machine tool and a jaw assembly arranged on the clamping seat. The drilling unit is provided with a synchronizing rod. During the drilling process of the differential housing, the synchronizing rod is inserted into the right half of the housing that is clamped and fixed by the jaw assembly. The drilling unit is equipped with a dynamic monitoring unit for monitoring the working status of the drill bit.

2. The intelligent drilling equipment for differential housing production according to claim 1, characterized in that, The clamping seat includes a support part that floats horizontally with the machine tool and a clamping rod for inserting the left half shell. The clamping rod is slidably arranged at the central axis of the support part. The jaw assembly includes a support ring that is slidably disposed on the outer wall of the clamping part, and the clamping rod is connected to the support ring by a connecting rod. Several jaw rods are arranged circumferentially on the support ring. The synchronous rod is an elastic telescopic structure. During the drilling process of the differential housing, the clamping force of the gripper bar on the differential housing gradually increases due to the pushing action of the synchronizing rod.

3. The intelligent drilling equipment for differential housing production according to claim 2, characterized in that, The surface of the part of the synchronizing insert used for insertion into the right half of the shell is made of elastic cushioning material.

4. The intelligent drilling equipment for differential housing production according to claim 3, characterized in that, The portion of the synchronous insert used for insertion into the right half-shell includes a tapered section and a cylindrical section.

5. The intelligent drilling equipment for differential housing production according to claim 2, characterized in that, The external shape of the part of the support that contacts the left half-shell matches the external shape of the end of the left half-shell used to install the power output shaft.

6. The intelligent drilling equipment for differential housing production according to claim 5, characterized in that, The support is provided with a side baffle, and an elastic top baffle is arranged between the side baffle and the support ring.

7. The intelligent drilling equipment for differential housing production according to claim 5, characterized in that, The support includes a support seat that is horizontally floating on the machine tool and a support column that is slidably arranged in the axial direction of the support seat. A first elastic element is provided between the support column and the support seat. A plurality of vertical grooves and a plurality of inclined grooves are arranged axially on the outer wall of the support column. The plurality of vertical grooves and the plurality of inclined grooves are arranged alternately. A ball bearing is installed on the support seat. The ball bearing can roll in the vertical grooves and the inclined grooves. The depth of the lower end of the vertical groove is less than the depth of the lower end of the inclined groove, and the depth of the upper end of the vertical groove is greater than the depth of the upper end of the inclined groove.

8. The intelligent drilling equipment for differential housing production according to claim 7, characterized in that, An elastic telescopic rod is fixed to the support base by bolts, and the ball bearings are rolled and installed at the end of the extendable portion of the elastic telescopic rod.

9. The intelligent drilling equipment for differential housing production according to claim 8, characterized in that, A mounting plate is fixedly connected to the part of the drilling unit used to hold the drill bit. The synchronous insertion rod is fixedly arranged at the center of the mounting plate. Several positioning insertion rods are arranged circumferentially on the mounting plate. The positioning insertion rods are elastic telescopic structures. The positioning rod is used to insert into the hole drilled by the drill bit on the differential housing.

10. The intelligent drilling equipment for differential housing production according to claim 9, characterized in that, The positioning insert for insertion into the hole drilled by the drill bit on the differential housing includes a tapered portion and a cylindrical portion, and the radial dimension of the cylindrical portion is adapted to the diameter of the hole drilled by the drill bit on the differential housing.

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