Grinding device for inner spherical surface of bell housing

Abstract

The utility model discloses a bell housing inner spherical surface polishing device which comprises a supporting table, a clamping assembly and a pressing assembly are arranged on the surface of the supporting table, the clamping assembly is located below the pressing assembly, a supporting plate is installed in the middle of the surface of the supporting table, a support is arranged on the surface of the supporting plate, and a connecting plate is arranged on the surface of the support. The clamping assembly comprises clamping blocks which are symmetrically arranged, V-shaped grooves are formed in the inner walls of the clamping blocks, and V-shaped inclined planes are formed above the V-shaped grooves. The device has the advantages that the connecting plate which is convenient to disassemble is installed on the support, the shape of the connecting plate corresponds to the inner spherical surface of the bell-shaped shell, and abrasive paper is fixedly adhered to the upper surface of the connecting plate; the support is driven by the motor, then the inner spherical surface of the bell-shaped shell is polished through the connecting plate with the abrasive paper, when the service life of the abrasive paper reaches the limit, the abrasive paper can be rapidly replaced, and the abrasive paper of different grades can be replaced to adapt to different polishing processes.

Description

Technical Field

[0001] The utility model belongs to the technical field of bell-shaped housing processing, in particular to a bell-shaped housing inner spherical surface grinding device. Background Art

[0002] The ball joint bell housing is a crucial component in a vehicle's transmission system, transferring engine power from the transmission to the two front wheels, propelling the vehicle at high speed. The outer ball joint secures the steel balls within six slots in a cage between the star housing and the bell housing. The balls occupy half of each slot, creating a uniform angle of rotation for the universal joint. The smooth surface treatment allows the joint to move like a helical gear, with the six balls pushing their respective slots in the star housing and bell housing, transmitting the engine's power.

[0003] In the process of grinding the inner spherical surface of the ball cage bell shell and fine milling the inner ball path of the ball cage bell shell, it is necessary to first fix it on the tooling for grinding the inner spherical surface, then remove the ball cage bell shell, and then fix it on the tooling for fine milling the inner ball path of the ball cage bell shell, and fine mill the ball cage bell shell with the ground inner spherical surface. This process is cumbersome and requires manual removal and installation of the ball cage bell shell, which wastes manpower costs. In addition, the tooling for grinding the inner spherical surface of the ball cage bell shell and fine milling the inner ball path of the ball cage bell shell requires fixing parts to fix one end of the ball cage bell shell, which also wastes financial costs.

[0004] In the prior art, a device for grinding the inner spherical surface of a ball cage bell-shaped housing and fine-milling the inner ball path of a ball cage bell-shaped housing, patent number CN206405711U, includes a fixing component, a component for grinding the inner spherical surface of the housing, and a component for fine-milling the inner ball path. The fixing component includes a clamping portion, a first lower base, and a first driving device. The first driving device drives the clamping portion to rotate on the first lower base. The clamping portion clamps the ball cage bell-shaped housing and extends horizontally. The inner spherical surface component of the housing includes a grinding fixture, and the fine-milling of the inner ball path component includes a fine-milling fixture. When the clamping portion rotates on the lower base to reach the first working position, the axis direction of the clamping portion is parallel to the axis direction of the grinding fixture. When the clamping portion rotates on the lower base to reach the second working position, the axis direction of the clamping portion is parallel to the axis direction of the fine-milling fixture. The advantage of this utility model is that it can use a single fixing component to perform both the tasks of grinding the inner spherical surface and fine-milling the inner ball path, significantly saving labor and financial costs.

[0005] In the above device, there are the following deficiencies:

[0006] 1. The above device is relatively complicated to operate and cannot collect grinding debris centrally, making subsequent cleaning difficult;

[0007] 2. In the above device, the bell housing is ground by a grinding wheel-type grinding block. The replacement process of the grinding wheel is relatively cumbersome, and it is not possible to quickly replace the grinding wheel with a different grinding grade. Utility Model Content

[0008] In order to overcome the deficiencies of the prior art, the utility model provides a device for grinding the spherical surface in a bell-shaped shell. The device can extract and collect grinding debris through connecting pipes on both sides. At the same time, the air discharged from the air intake connecting pipe also helps to reduce the temperature during grinding.

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for grinding the spherical surface inside a bell-shaped shell, comprising a support platform, a clamping assembly and a pressing assembly being arranged on the surface of the support platform, the clamping assembly being located below the pressing assembly, a support plate being installed on the middle part of the surface of the support platform, a bracket being arranged on the surface of the support plate, a connecting plate being arranged on the surface of the bracket, the clamping assembly comprising symmetrically arranged clamping blocks, an inner wall of the clamping block being provided with a V-shaped groove, and a V-shaped inclined surface being provided above the V-shaped groove.

[0010] Optionally, a fixing seat is symmetrically fixedly provided on the surface of the support platform between the two clamping blocks, and support shafts are symmetrically fixedly provided on both sides of the fixing seat.

[0011] Optionally, a cylindrical groove 2 is symmetrically formed on the inner side surface of the clamping block, a cylindrical groove 1 communicating with the cylindrical groove 2 is formed in the cylindrical groove 2, and a diameter of the cylindrical groove 2 is greater than a diameter of the cylindrical groove 1.

[0012] Optionally, the support shaft is slidably arranged in the cylindrical groove 1, and a spring is fixedly connected between the cylindrical groove 2 and the side surface of the fixing seat, and the spring is sleeved on the surface of the support shaft.

[0013] Optionally, a connecting pipe is symmetrically fixedly provided on the lower surface of the support plate, and the connecting pipe is communicated with the upper surface of the support platform.

[0014] Optionally, a U-shaped support frame is fixedly provided on the upper surface of the support platform, and a telescopic cylinder is fixedly provided on the upper surface of the U-shaped support frame. The piston rod of the telescopic cylinder passes through the upper surface of the U-shaped support frame and slides together, and a pressing plate is fixedly provided on its lower end surface. The inner walls on both sides of the U-shaped support frame are symmetrically provided with sliding grooves, and the two ends of the pressing plate are slidably provided in the sliding grooves.

[0015] In summary, compared with the prior art, the bell-shaped housing inner spherical surface grinding device provided by the present invention has the following beneficial effects:

[0016] 1. In this utility model, the bell housing is pressed between the two clamping blocks, and the lower end surface of the bell housing is initially clamped and positioned by the rebound of the spring. Then, the pressing plate is driven by the telescopic cylinder at the upper end to perform the final fixed clamping of the bell housing. This clamping method is simple and quick to operate.

[0017] 2. In the present invention, when the lower end face of the bell-shaped housing is placed on the surface of the support plate, the upper ends of the connecting pipes on both sides are covered by the inner spherical surface of the bell-shaped housing. At this time, air is discharged into the inner spherical surface of the bell-shaped housing through the connecting pipe on one side for air intake, so that grinding chips will not adhere to the inner spherical surface. Then, the grinding chips can be extracted through the connecting pipe on the other side for exhaust. At the same time, the air discharged from the connecting pipe on the air intake also helps to reduce the temperature during grinding.

[0018] 3. In the present invention, a connecting plate that is easy to disassemble is installed on the bracket. The shape of the connecting plate corresponds to the inner spherical surface of the bell-shaped housing, and sandpaper is bonded and fixed to the upper surface of the connecting plate. The bracket is driven by a motor, and then the connecting plate with sandpaper is used to grind the inner spherical surface of the bell-shaped housing. When the service life of the sandpaper reaches its limit, it can be quickly replaced, and different grades of sandpaper can be replaced to suit different grinding processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the utility model Figure 2 ;

[0022] Figure 4 This is a partial structural diagram of the support platform of the utility model;

[0023] Figure 5 It is a structural diagram of some parts of the utility model;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the support platform of the utility model;

[0025] Figure 7 It is a schematic diagram of the enlarged structure of the utility model A;

[0026] In the figure: 1. Support platform; 2. Clamping assembly; 3. Bell-shaped housing; 31. Center hole; 4. Pressing assembly; 5. Support plate; 51. Connecting pipe; 52. Motor; 53. Bracket; 54. Connecting plate; 541. Bolt hole; 531. Through hole; 21. Clamping block; 211. Cylindrical groove 1; 212. Cylindrical groove 2; 213. V-shaped slope; 214. V-shaped groove; 22. Fixed seat; 221. Support shaft; 222. Spring; 41. U-shaped support frame; 411. Slide groove; 42. Telescopic cylinder; 43. Pressing plate; 431. Positioning shaft. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] refer to Figure 1-7 A spherical surface grinding device for a bell-shaped shell includes a support platform 1, a clamping block 21 is symmetrically and slidingly provided on the upper surface of the support platform 1, a fixed seat 22 is symmetrically fixedly provided on the surface of the support platform 1 between the two clamping blocks 21, and support shafts 221 are symmetrically fixedly provided on both sides of the fixed seat 22, and a cylindrical groove 212 is symmetrically provided on the inner side surface of the clamping block 21, and a cylindrical groove 1 211 that is connected is provided in the cylindrical groove 212, and the diameter of the cylindrical groove 212 is larger than the diameter of the cylindrical groove 1 211, and the two can be combined into a stepped cylindrical groove.

[0029] refer to Figure 3 The support shaft 221 is slidably arranged in the cylindrical groove 1 211 , and a spring 222 is fixedly connected between the cylindrical groove 212 and the side surface of the fixing seat 22 , and the spring 222 is sheathed on the surface of the support shaft 221 .

[0030] refer to Figure 4 A V-shaped groove 214 is provided on the inner wall of the clamping block 21 , and a V-shaped inclined surface 213 is provided above the V-shaped groove 214 . The opening angle of the V-shaped inclined surface 213 is greater than the diameter of the lower end surface of the bell-shaped housing 3 .

[0031] Furthermore, the bell-shaped housing 3 is pressed between the two clamping blocks 21, and the lower end of the bell-shaped housing 3 will first contact the V-shaped inclined surface 213, and then push the clamping blocks 21 on both sides outward. At this time, the support shaft 221 slides in the cylindrical groove 1 211, and the spring 222 begins to stretch. When the lower end of the bell-shaped housing 3 completely enters between the two clamping blocks 21, the lower end surface of the bell-shaped housing 3 is contacted through the V-shaped groove 214 on the inner side of the clamping block 21, and then the clamping block 21 positions and clamps the bell-shaped housing 3 through the retraction of the spring 222.

[0032] refer to Figure 2 、 5-7. A circular support plate 5 is fixedly installed on the surface of the support platform 1 by bolts. A motor 52 is fixedly installed in the middle of the lower surface of the support plate 5. The output shaft of the motor 52 passes through the support plate 5 and a bracket 53 is fixedly installed on its outer end surface. A connecting plate 54 is provided on the surface of the bracket 53. Bolt holes 541 are symmetrically provided on the lower surface of the connecting plate 54, and through holes 531 are symmetrically provided on the upper surface of the bracket 53. After the connecting plate 54 is placed on the bracket 53, a bolt is passed through the through hole 531 and then threadedly engaged with the bolt hole 541 on the lower surface of the connecting plate 54 to fix the connecting plate 54 on the bracket 53.

[0033] The shape of the connecting plate 54 corresponds to the inner spherical surface of the bell-shaped housing 3, and sandpaper is bonded and fixed to the upper surface of the connecting plate 54. The motor 52 drives the bracket 53 to rotate, so that the bracket 53 drives the connecting plate 54 to rotate, and then the sandpaper on the surface of the connecting plate 54 grinds the inner spherical surface of the bell-shaped housing 3.

[0034] Furthermore, after the service life of the sandpaper reaches its limit, the sandpaper can be replaced by removing the connecting plate 54. Compared with the hard grinding head, the sandpaper can be better adapted to different grinding situations. The hard grinding head is easily damaged if it accidentally touches other places on the spherical surface of the bell housing 3.

[0035] refer to Figure 2 、 5 , a connecting pipe 51 is symmetrically fixed on the lower surface of the support plate 5, and the connecting pipe 51 is communicated with the upper surface of the support platform 1. The connecting pipe 51 on one side is used for exhausting air, and the connecting pipe 51 on the other side is used for intake air. When the lower end face of the bell-shaped shell 3 is placed on the surface of the support plate 5, the upper ends of the connecting pipes 51 on both sides will be covered by the inner spherical surface of the bell-shaped shell 3. At this time, air is discharged into the inner spherical surface of the bell-shaped shell 3 through the connecting pipe 51 on one side for intake air, so that the grinding debris will not adhere to the inner spherical surface, and then the grinding debris can be extracted through the connecting pipe 51 on the other side for exhausting air. At the same time, the air discharged by the connecting pipe 51 for intake air also helps to reduce the temperature during grinding.

[0036] refer to Figure 2 A U-shaped support frame 41 is fixedly provided on the upper surface of the support platform 1, and a telescopic cylinder 42 is fixedly provided on the upper surface of the U-shaped support frame 41. The piston rod of the telescopic cylinder 42 passes through the upper surface of the U-shaped support frame 41 and slides together, and a pressing plate 43 is fixedly provided on its lower end surface. The inner walls on both sides of the U-shaped support frame 41 are symmetrically provided with sliding grooves 411, and the two ends of the pressing plate 43 are slidably set in the sliding grooves 411 to ensure the stability of the pressing plate 43 when it descends.

[0037] refer to Figure 2A positioning shaft 431 is fixedly provided in the middle of the lower surface of the pressing plate 43. The positioning shaft 431 corresponds to the center hole 31 at the upper end of the bell-shaped shell 3. The pressing plate 43 is pushed by the telescopic cylinder 42 to fix the clamped bell-shaped shell 3 for a second time to prevent the bell-shaped shell 3 from shaking during the grinding process.

[0038] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0039] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0040] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A device for polishing the inner spherical surface of a bell-shaped housing, characterized in that: The invention comprises a support platform (1), a clamping assembly (2) and a pressing assembly (4) are arranged on the surface of the support platform (1), the clamping assembly (2) is located below the pressing assembly (4), a support plate (5) is installed in the middle of the surface of the support platform (1), a bracket (53) is arranged on the surface of the support plate (5), and a connecting plate (54) is arranged on the surface of the bracket (53). The clamping assembly (2) comprises symmetrically arranged clamping blocks (21), the inner wall of the clamping block (21) is provided with a V-shaped groove (214), and a V-shaped inclined surface (213) is provided above the V-shaped groove (214).

2. A bell-shaped housing inner spherical surface grinding device according to claim 1, characterized in that: A fixed seat (22) is symmetrically fixedly provided on the surface of the support platform (1) between the two clamping blocks (21), and support shafts (221) are symmetrically fixedly provided on both sides of the fixed seat (22).

3. The device for polishing the inner spherical surface of a bell-shaped housing according to claim 2, characterized in that: The inner side surface of the clamping block (21) is symmetrically provided with a second cylindrical groove (212), and a communicating cylindrical groove (211) is provided inside the second cylindrical groove (212), and the diameter of the second cylindrical groove (212) is larger than the diameter of the first cylindrical groove (211).

4. The device for polishing the inner spherical surface of a bell-shaped housing according to claim 3, characterized in that: The support shaft (221) is slidably arranged in the cylindrical groove (211), and a spring (222) is fixedly connected between the cylindrical groove (212) and the side surface of the fixing seat (22), and the spring (222) is sheathed on the surface of the support shaft (221).

5. The device for polishing the inner spherical surface of a bell-shaped housing according to claim 1, characterized in that: A connecting pipe (51) is symmetrically fixedly provided on the lower surface of the support plate (5), and the connecting pipe (51) is communicated with the upper surface of the support platform (1).

6. The device for polishing the inner spherical surface of a bell-shaped housing according to claim 1, characterized in that: A U-shaped support frame (41) is fixedly provided on the upper surface of the support platform (1), a telescopic cylinder (42) is fixedly provided on the upper surface of the U-shaped support frame (41), a piston rod of the telescopic cylinder (42) passes through the upper surface of the U-shaped support frame (41) and is slidably fitted, and a pressing plate (43) is fixedly provided on the lower end surface thereof, and sliding grooves (411) are symmetrically provided on the inner walls of both sides of the U-shaped support frame (41), and both ends of the pressing plate (43) are slidably provided in the sliding grooves (411).

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