A spherical raceway grinding device for a bell housing

Abstract

The present invention belongs to the technical field of grinding processing, and specifically refers to a spherical track grinding device for a bell-shaped shell, which includes a processing table, a parallel grinding device, an adjustment and movement device, a template bell-shaped shell, and a bell-shaped shell to be processed. The parallel grinding device is arranged on the processing table, and the adjustment and movement device is arranged on the processing table. In the present invention, the bell-shaped shell that has been processed with high precision is used as a template. The parallel grinding device is used to determine the grinding positions of the positioning template and the product to be processed, and the adjustment and movement device is used to synchronize the movement trajectories of the high-precision bell-shaped shell and the bell-shaped shell to be processed, thereby improving the precision of processing the outer spherical track of the bell-shaped shell by general grinding equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of grinding processing, and specifically refers to a ball track grinding device for a bell housing. Background Art

[0002] The constant velocity joint is usually used between the engine and the drive wheels of an automobile, mainly for realizing non-coaxial transmission between the engine and the wheels. The constant velocity joint mainly consists of a bell housing, a cage, balls and a spider. There are multiple outer raceways inside the bell housing, and its trajectory is relatively complex, making it difficult to be processed by ordinary grinding equipment and can only be ground by a numerically controlled machine tool. However, the price of a numerically controlled machine tool with high processing accuracy is relatively high, which is difficult to afford for general processing factories or branch factories.

[0003] Ordinary grinding equipment cannot adapt to the complex structure of the outer raceway of the bell housing, but the price of numerically controlled machine tools is relatively high. For processing factories that cannot afford high-precision numerically controlled machine tools, how to process bell housings with relatively high precision without using high-precision numerically controlled machine tools is a big problem. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention uses the bell housing that has been processed with high precision as a template, uses a parallel grinding device to determine the grinding positions of the positioning template and the workpiece to be processed, and synchronizes the movement trajectories of the high-precision bell housing and the bell housing to be processed by using an adjustment and movement device, so as to improve the precision of processing the outer ball track of the bell housing by ordinary grinding equipment.

[0005] The present invention provides a ball track grinding device for a bell housing, comprising a processing table, a parallel grinding device, an adjusting and moving device, a template bell housing and a bell housing to be processed, characterized in that: the parallel grinding device is arranged on the processing table, the adjusting and moving device is arranged on the processing table, the template bell housing is arranged on the adjusting and moving device, the bell housing to be processed is arranged on the adjusting and moving device, the parallel grinding device comprises a grinding machine and a plurality of positioning columns, the body of the grinding machine is arranged inside the processing table, the positioning columns are arranged on the processing table, the positioning columns comprise positioning rods and positioning balls, the positioning balls are arranged at the tops of the positioning rods, the adjusting and moving device comprises a moving track, a moving guide block, a handle and a workpiece mounting table, the moving track is arranged inside the processing table, the moving guide block is slidably arranged on the moving track, two vertical guide columns are arranged on the moving guide block, the handle is fixedly arranged on the vertical guide columns, the workpiece mounting table is slidably arranged on the vertical guide columns, the workpiece mounting table is arranged above the handle, the workpiece mounting table comprises a mounting frame, vertical sliding blocks, mounting sliding blocks and adjusting rods, sliding grooves are arranged on both sides inside the mounting frame, the vertical sliding blocks are arranged in the middle inside the mounting frame, the mounting sliding blocks are slidably arranged at both ends inside the mounting frame, the adjusting rods are arranged at both ends of the mounting frame, one end of the adjusting rod is connected with the mounting sliding block, and the adjusting rod and the mounting frame are in threaded transmission with each other.

[0006] Further, the template bell housing is fixedly arranged below one of the mounting sliding blocks by bolts, and the bell housing to be processed is fixedly arranged below the other mounting sliding block by bolts.

[0007] Further, the processing table comprises a cabinet body, a blower, an internal mounting plate and an external mounting plate, the blower is arranged inside the cabinet body, the moving track is arranged on the internal mounting plate, the positioning columns are arranged on the external mounting plate, and an opening is arranged on the external mounting plate.

[0008] Further, the structure of the template bell housing is the same as that of the bell housing to be processed, and the radius of the positioning ball is the same as that of the ball bearing of the template bell housing.

[0009] Further, a spring is arranged on the vertical guide column between the vertical sliding block and the handle.

[0010] The beneficial effects achieved by the present invention with the above structure are as follows:

[0011] (1) Using the template bell housing that has been processed with high precision as the guide of the grinding device to control the moving track of the ball track of the bell housing to be processed on the grinding head;

[0012] (2) The adjusting and moving device can control the movement of the template bell housing and the bell housing to be processed to realize the synchronous movement of the template bell housing and the bell housing to be processed;

[0013] (3) The positioning posts and the head of the grinding machine are fixed in position, providing a reference for the distance between the template bell housing and the bell housing to be processed, and at the same time providing guidance for adjusting the moving device during movement. Description of the Drawings

[0014] Figure 1 A perspective view of a ball track grinding device for a bell housing proposed by the present invention;

[0015] Figure 2 An internal structure schematic diagram of a ball track grinding device for a bell housing proposed by the present invention;

[0016] Figure 3 A schematic diagram of the structure of the parallel grinding device and the adjustment moving device;

[0017] Figure 4 A schematic diagram of the structure of the adjustment moving device.

[0018] Wherein, 1, processing table; 101, cabinet; 102, blower; 103, internal mounting plate; 104, external mounting plate; 105, opening; 2, parallel grinding device; 201, grinding machine; 202, positioning post; 203, positioning rod; 204, positioning ball; 3, adjustment moving device; 301, moving track; 302, moving guide block; 303, handle; 304, workpiece mounting table; 3041, mounting frame; 3042, vertical sliding block; 3043, mounting sliding block; 3044, adjusting rod; 3045, sliding groove; 305, vertical guide post; 4, template bell housing; 5, bell housing to be processed; 6, spring.

[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] like Figures 1 to 4 As shown, the present invention proposes a ball track grinding device for a bell-shaped shell, comprising a processing table 1, a parallel grinding device 2, an adjusting and moving device 3, a template bell-shaped shell 4 and a bell-shaped shell to be processed 5, characterized in that: the parallel grinding device 2 is arranged on the processing table 1, the adjusting and moving device 3 is arranged on the processing table 1, the template bell-shaped shell 4 is arranged on the adjusting and moving device 3, the template bell-shaped shell 4 can be obtained by purchasing or processing, the ideal processing accuracy of the grinding equipment is the actual processing accuracy of the template bell-shaped shell 4, the bell-shaped shell 5 to be processed is arranged on the adjusting and moving device 3, the parallel grinding device 2 includes a grinder 201 and a plurality of positioning columns 202, and the minimum number of the positioning columns 202 is three, as shown in FIG. Figure 2 As shown, the installation of the two positioning columns 202 at the far left and the far right requires precise measurement. After the installation is completed, a dial indicator or other measuring equipment can be used. The accuracy of the positions of the two positioning columns 202 determines the accuracy of the motion trajectories of the two ball lanes. At the same time, improving the accuracy of the positioning ball 204 can also make the bell shell 5 to be processed after polishing closer to the ideal processing accuracy. The grinder 201 and the positioning column 202 on the left in the middle are both fixed, and the distance between the two is the distance between the ball lanes corresponding to the two ball cages during polishing. The adjusting moving device 3 includes a moving track 301 and a moving guide block 304. 02, handle 303, workpiece mounting table 304, the moving track 301 is arranged inside the processing table 1, the moving guide block 302 can slide left and right on the moving track 301, and the workpiece mounting table 304 can move up and down on the moving guide block 302, so the workpiece mounting table 304 can also realize arbitrary track movement, the workpiece mounting table 304 includes a mounting frame 3041, a vertical slider 3042, a mounting slider 3043 and an adjusting rod 3044, and the adjusting rod 3044 can adjust the position of the mounting slider 3043, thereby adjusting the distance between the two bell-shaped shells.

[0023] The template bell-shaped shell 4 is fixed by bolts under one of the mounting slides 3043, and the bell-shaped shell 5 to be processed is fixed by bolts under the other mounting slide 3043. The bolt fixation is suitable for bell-shaped shells with threads on the ends. If the bell-shaped shells without threads on the ends are to be processed, other fixing methods such as clamps can be used.

[0024] The processing table 1 includes a cabinet body 101, a blower 102, an internal mounting plate 103 and an external mounting plate 104. The blower 102 is arranged inside the cabinet body 101. The moving track 301 is arranged on the internal mounting plate 103. The positioning column 202 is arranged on the external mounting plate 104. There is an opening 105 on the external mounting plate 104. The external mounting plate 104 is a perforated plate. When processing, starting the blower 102 can suck the grinding chips into the processing table 1 from the external mounting plate 104.

[0025] The structure of the template bell housing 4 is the same as that of the bell housing 5 to be processed. The radius of the positioning ball 204 is the same as that of the ball bearing of the template bell housing 4.

[0026] There is a spring 6 between the vertical slider 3042 and the handle 303 on the vertical guiding column 305.

[0027] When in specific use, as Figure 2 shown, first, align one of the outer ball tracks of the template bell housing 4 with one of the leftmost positioning balls 204 to fix the ball track position of the template bell housing 4. Then, align one of the outer ball tracks of the bell housing 5 to be processed with one of the rightmost positioning balls 204 to fix the ball track position of the bell housing 5 to be processed, so as to align the ball tracks to be processed. Fix both the template bell housing 4 and the bell housing 5 to be processed on the workpiece mounting table 304 with bolts. At this time, the spatial positions of the outer ball tracks on the template bell housing 4 and the bell housing 5 to be processed are exactly the same. Remove the left and right positioning columns 202, press down the workpiece mounting table 304, and at the same time rotate the adjusting rod 3044 so that the positioning ball 204 on the second positioning column 202 on the left is located at the bottom of the ball track of the template bell housing 4. Keep the workpiece mounting table 304 in the pressed state, rotate the adjusting rod 3044 at the other end so that the grinding head of the grinding machine 201 is located at the bottom of the ball track of the bell housing 5 to be processed. Start the grinding machine 201, and the grinding head of the grinding machine 201 starts to polish the bottom of the ball track of the bell housing 5. At this time, slowly loosen the adjusting and moving device 3 and at the same time give a force to the handle 303 to the left to move the adjusting and moving device 3 upward, and at the same time move the guiding block 302 to the left on the moving track 301. At this time, the moving track of the workpiece mounting table 304 is the same as the ball track of the template bell housing 4, that is, the moving track of the ball track of the bell housing 5 to be processed is also the same as the ball track of the template bell housing 4. Finally, the contact track between the bell housing 5 to be processed and the grinding head is the same as the contact track between the template bell housing 4 and the positioning ball 204. After one ball track is processed, remove the bell housing 5 to be processed, and repeat the steps of aligning the ball tracks and polishing the ball tracks above.

[0028] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0030] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A ball track grinding device for a bell housing, comprising a processing table (1), a parallel grinding device (2), an adjusting and moving device (3), a template bell housing (4) and a bell housing to be processed (5). It is characterized in that: The parallel grinding device (2) is arranged on the processing table (1), the adjusting and moving device (3) is arranged on the processing table (1), the template bell housing (4) is arranged on the adjusting and moving device (3), the bell housing to be processed (5) is arranged on the adjusting and moving device (3), the parallel grinding device (2) includes a grinding machine (201) and a plurality of positioning columns (202), the body of the grinding machine (201) is arranged inside the processing table (1), the positioning columns (202) are arranged on the processing table (1), the positioning columns (202) include positioning rods (203) and positioning balls (204), the positioning balls (204) are arranged at the tops of the positioning rods (203), the adjusting and moving device (3) includes a moving track (301), a moving guide block (302), a handle (303), and a workpiece mounting table (304), the moving track (301) is arranged inside the processing table (1), the moving guide block (302) is slidably arranged on the moving track (301), two vertical guide columns (305) are arranged on the moving guide block (302), the handle (303) is fixedly arranged on the vertical guide columns (305), the workpiece mounting table (304) is slidably arranged on the vertical guide columns (305), the workpiece mounting table (304) is arranged above the handle (303), the workpiece mounting table (304) includes a mounting frame (3041), vertical sliders (3042), mounting sliders (3043) and adjusting rods (3044), chutes (3045) are arranged on both sides inside the mounting frame (3041), the vertical sliders (3042) are arranged in the middle inside the mounting frame (3041), the vertical sliders (3042) are slidably arranged on the vertical guide columns (305), the number of the mounting sliders (3043) is two, and they are respectively slidably arranged at both ends inside the mounting frame (3041), the number of the adjusting rods (3044) is two, and they are respectively arranged at both ends of the mounting frame (3041), one end of each adjusting rod (3044) is connected to the corresponding mounting slider (3043), and the adjusting rods (3044) are in threaded transmission with the mounting frame (3041). The template bell housing (4) is fixedly arranged below one of the mounting sliders (3043) by bolts.

2. A ball track grinding device for a bell housing according to claim 1, It is characterized in that: The bell housing to be processed (5) is fixedly arranged below the other mounting slider (3043) by bolts.

3. A ball track grinding device for a bell housing according to claim 2, It is characterized in that: The processing table (1) includes a cabinet body (101), a blower (102), an internal mounting plate (103) and an external mounting plate (104). The blower (102) is arranged inside the cabinet body (101). The moving track (301) is arranged on the internal mounting plate (103). The positioning column (202) is arranged on the external mounting plate (104). An opening (105) is provided on the external mounting plate (104).

4. A ball track grinding device for a bell-shaped shell according to claim 3, characterized in that: The structure of the template bell-shaped shell (4) is the same as that of the bell-shaped shell (5) to be processed. The radius of the positioning ball (204) is the same as that of the ball in the template bell-shaped shell (4).

5. A ball track grinding device for a bell-shaped shell according to claim 4, characterized in that: A spring (6) is provided on the vertical guide post (305) between the vertical slider (3042) and the handle (303).

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