Bore machining device for a drive axle housing
By using a fixture structure with movable positioning pins and spring adjustment, combined with an electric telescopic rod and flexible contact parts, the problem of insufficient applicability of traditional fixtures is solved, realizing the versatility and efficient positioning of the drive axle housing hole machining device, and improving machining efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI TIANPING MASCH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-16
AI Technical Summary
The fixtures of traditional drive axle housing hole machining devices cannot adapt to products of different specifications, requiring frequent replacement or adjustment, which is cumbersome and inefficient.
The fixture structure, which employs movable positioning columns and spring adjustment, forms a variable positioning zone. Combined with an electric telescopic rod and flexible contact parts, it enables pre-installation and precise positioning of bridge housings of different sizes, and provides guidance with a detachable cover plate assembly.
It enables universal pre-positioning for bridge housings of various sizes, improves the applicability and efficiency of the fixture, avoids frequent fixture changes, and ensures machining stability and accuracy.
Smart Images

Figure CN224359739U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of drive axle housing processing technology, and in particular relates to a hole processing device for drive axle housings. Background Technology
[0002] The drive axle housing hole machining device is a piece of equipment specifically designed for drilling and other hole machining operations on the drive axle housing.
[0003] Hole machining equipment generally includes a fixture system to fix the drive axle housing in order to ensure the stability and positioning accuracy of the axle housing during machining. However, traditional fixtures mostly use rigid positioning blocks or fixed support points to position the axle housing. Their structure and position are usually fixed, which means that the fixture is often only suitable for a specific model or size of axle housing. When dealing with products of different specifications, it is necessary to frequently change the fixture or readjust the positioning structure, which is cumbersome and inefficient. Utility Model Content
[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:
[0005] This utility model provides a hole machining device for a drive axle housing, comprising:
[0006] A clamping plate, wherein a receiving groove is provided on the clamping plate;
[0007] Positioning posts, a plurality of positioning posts are movably disposed in receiving grooves, and a variable positioning area for mounting the axle housing is formed between the plurality of positioning posts;
[0008] An installation groove is provided on the bottom wall of the receiving groove. The positioning post is slidably disposed in the installation groove. A spring is also provided in the installation groove. The positioning post compresses the spring to change its position in the installation groove, thereby changing the size of the positioning area.
[0009] A clamping assembly comprising a group of clamping plates movably disposed within a receiving groove, the clamping plates being close to each other and clamping the bridge housing.
[0010] As a preferred embodiment of the above technical solution, the positioning post includes positioning post one and positioning post two. Positioning post one is arranged in a group at the axial positions at both ends of the axle housing in the receiving groove, and positioning post two is arranged circumferentially at the positions of the main body of the axle housing in the receiving groove.
[0011] As a preferred embodiment of the above technical solution, the clamping assembly further includes an electric telescopic rod disposed on the side wall of the receiving groove, the output end of which is connected to the clamping plate.
[0012] As a preferred embodiment of the above technical solution, the clamping plate is provided with a flexible contact portion at one end near the bridge housing.
[0013] As a preferred embodiment of the above technical solution, a cover plate assembly is also included. The cover plate assembly is detachably disposed against the end face of the bridge housing body. The cover plate assembly includes a plate body with a plurality of reserved holes.
[0014] As a preferred embodiment of the above technical solution, the plate body is symmetrically provided with extensions, the clamp plate is symmetrically provided with inserts, and the extensions are provided with insertion holes at positions corresponding to the inserts, the insertion holes being inserted into the inserts.
[0015] As a preferred embodiment of the above technical solution, the outer wall of the insertion post is provided with a threaded section, and after the insertion post is inserted into the corresponding insertion hole, a locking nut is screwed on its top end.
[0016] The beneficial effects of this utility model are as follows:
[0017] This invention uses multiple movable positioning posts to form a positioning area that can adapt to bridge housings of different sizes. The positioning area plays a role in the pre-installation and initial positioning of the bridge housing. When the bridge housing is placed in the positioning area, the position of the positioning posts can be adjusted by the compression or extension of the spring, thereby automatically adapting to bridge housings of different sizes. This structure realizes universal pre-positioning for bridge housings of various sizes, eliminating the need to replace or frequently adjust the fixture structure, and significantly improving the applicability and efficiency of the fixture. Attached Figure Description
[0018] Figure 1 The diagram shown is a schematic of the drive bridge housing in the embodiment;
[0019] Figure 2 The diagram shown is an overall schematic diagram (top view) of the processing device in the embodiment;
[0020] Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;
[0021] Figure 4 The diagram shown is a schematic representation (top view) of the cover plate assembly in the embodiment;
[0022] Figure 5 The diagram shown is a top view of the embodiment without the cover plate assembly installed.
[0023] Figure 6 The diagram shown is a side view of the clamping assembly clamping the bridge housing shaft.
[0024] Reference numerals: 1. Main body; 2. Shaft; 10. Clamp plate; 11. Receiving groove; 21. Positioning post one; 22. Positioning post two; 201. Mounting groove; 202. Spring; 30. Clamping assembly; 31. Electric telescopic rod; 32. Clamping plate; 33. Flexible contact part; 41. Plate body; 42. Reserved hole; 43. Extension part; 44. Insertion hole; 45. Insertion post; 46. Locking nut. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0026] Example
[0027] like Figure 1 As shown, Figure 1 The diagram shown is a schematic of the drive bridge housing in the embodiment;
[0028] The drive axle housing includes a main body 1 and shafts 2 located at both ends of the main body 1.
[0029] like Figure 2 , Figure 3 As shown, Figure 2 The diagram shown is an overall schematic diagram (top view) of the processing device in the embodiment; Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;
[0030] This device serves to fix the bridge housing during the machining of the bridge housing hole. Its drilling assembly is existing technology and will not be described in detail here.
[0031] This device includes:
[0032] The clamp plate 10 has a receiving groove 11.
[0033] Positioning posts, multiple positioning posts are movably arranged in receiving groove 11, and the multiple positioning posts form a variable positioning area for axle housing installation;
[0034] An installation groove 201 is provided on the bottom wall of the receiving groove 11. The positioning post is slidably disposed in the installation groove 201. A spring 202 is also provided in the installation groove 201. The positioning post compresses the spring 202 to change its position in the installation groove 201, thereby changing the size of the positioning area.
[0035] The clamping assembly 30 includes a group of clamping plates 32 movably disposed in the receiving groove 11, the clamping plates 32 being close to each other and clamping the bridge housing.
[0036] Multiple positioning posts are set up to form a positioning area that can adapt to bridge housings of different sizes. The positioning area plays a role in the pre-installation and initial positioning of the bridge housing. When the bridge housing is placed in the positioning area, the position of the positioning posts can be adjusted by the compression or extension of the spring 202, so that it can automatically adapt to bridge housings of different sizes.
[0037] After the bridge housing is initially positioned and installed, the bridge housing is clamped by the clamping plate 32 of the clamping assembly 30 to complete the fixation of the bridge housing.
[0038] Specifically, the two ends of any spring 202 are fixedly connected to the positioning post at its location and the side wall of the mounting groove 201 at its location, respectively.
[0039] Specifically, the positioning posts include positioning post one 21 and positioning post two 22. Positioning post one 21 is arranged in a group at the shaft portion 2 at both ends of the axle housing in the receiving groove 11, and positioning post two 22 is arranged circumferentially at the position of the axle housing body portion 1 in the receiving groove 11.
[0040] Positioning post 1 21 and positioning post 22 correspond to shaft part 2 and main body part 1 respectively, realizing multi-point collaborative positioning.
[0041] like Figure 2 , Figure 5 , Figure 6 As shown, Figure 2 The diagram shown is an overall schematic diagram (top view) of the processing device in the embodiment; Figure 5 The diagram shown is a top view of the embodiment without the cover plate assembly installed. Figure 6 The diagram shown is a side view of the clamping assembly clamping the bridge housing shaft.
[0042] The clamping assembly 30 also includes an electric telescopic rod 31 disposed on the side wall of the receiving groove 11, and the output end of the electric telescopic rod 31 is connected to the clamping plate 32;
[0043] A flexible contact portion 33 is provided at one end of the clamping plate 32 near the bridge housing.
[0044] The electric telescopic rod 31 drives the clamping plate 32 to perform linear reciprocating motion, thereby realizing the clamping action of the clamping plate 32. The flexible contact part 33 can be made of rubber, polyurethane, silicone or other non-metallic materials with cushioning properties. The flexible contact part 33 can absorb the impact force during the clamping process and avoid damage to the bridge shell surface; it can also improve the clamping friction and prevent the workpiece from sliding; in addition, due to its certain deformation capability, it can adapt to different shapes or slightly irregular bridge shell surfaces.
[0045] like Figure 2 , Figure 4 , Figure 5 As shown, Figure 2The diagram shown is an overall schematic diagram (top view) of the processing device in the embodiment; Figure 4 The diagram shown is a schematic representation (top view) of the cover plate assembly in the embodiment; Figure 5 The diagram shown is a top view of the embodiment without the cover plate assembly installed.
[0046] It also includes a cover plate assembly, which is detachably disposed against the end face of the bridge housing body 1.
[0047] The cover plate assembly includes a plate 41, on which a plurality of reserved holes 42 are provided.
[0048] After the bridge housing is installed into the receiving groove 11, the top end face of the bridge housing is flush with the top end face of the clamp plate 10. After the cover plate assembly is installed on the top end face of the clamp plate 10, the plate body 41 of the cover plate assembly abuts against the main body 1 of the bridge housing. On the one hand, it plays a role in further fixing the bridge housing, and on the other hand, through the setting of the reserved hole 42, it serves as a guide hole for the drill bit, which facilitates the positioning of the subsequent drilling position.
[0049] The plate 41 is symmetrically provided with an extension 43, and the clamp plate 10 is symmetrically provided with a pin 45. The extension 43 is provided with a hole 44 corresponding to the position of the pin 45, and the hole 44 is inserted into the pin 45.
[0050] The outer wall of the insertion post 45 is provided with a threaded section. After the insertion post 45 is inserted into the corresponding insertion hole 44, a locking nut 46 is screwed on its top end.
[0051] The plate 41 can be detachably installed by means of the extension 43, the insertion post 45, the insertion hole 44, and the locking nut 46. During installation, the insertion hole 44 of the extension 43 is aligned with the insertion post 45 and inserted. Finally, the locking nut 46 is screwed on to fix the plate 41 firmly on the clamp plate 10.
[0052] Working principle: The bridge housing is placed in the receiving groove 11 of the clamping plate 10. At this time, multiple positioning posts (including positioning post one 21 and positioning post two 22) will automatically adjust their positions in the mounting groove 201 according to the specific shape and size of the bridge housing due to the action of the spring 202. By squeezing or releasing the spring 202, the size of the positioning area is changed, thereby realizing the pre-installation and initial positioning of the bridge housing.
[0053] After the initial positioning is completed, the clamping plate 32 is driven to move towards the bridge housing by activating the electric telescopic rod 31, and the shaft part 2 of the bridge housing is clamped by the flexible contact part 33 to complete the precise fixation of the bridge housing. The flexible contact part 33 can not only absorb the impact force to avoid damage to the surface of the bridge housing, but also increase the friction force to prevent the workpiece from sliding.
[0054] After the bridge housing is fixed, a cover plate assembly is installed on the top end face of the clamp plate 10. The plate 41 of the cover plate assembly abuts against the main body 1 of the bridge housing. At the same time, it cooperates with the insertion post 45 on the clamp plate 10 through the insertion hole 44 on the extension 43 and is fixed with the locking nut 46. This not only further stabilizes the position of the bridge housing, but also provides accurate guidance for subsequent drilling through the reserved hole 42 on the plate 41.
[0055] Finally, guided by the reserved hole 42, drilling and other processing operations are carried out.
[0056] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A hole machining device for a drive axle housing, characterized in that, include: A clamping plate (10) is provided with a receiving groove (11); Positioning posts, a plurality of the positioning posts are movably disposed in receiving grooves (11), and a variable positioning area for mounting the axle housing is formed between the plurality of positioning posts; An installation groove (201) is provided on the bottom wall of the receiving groove (11). The positioning post is slidably disposed in the installation groove (201). A spring (202) is also provided in the installation groove (201). The positioning post squeezes the spring (202) to change its position in the installation groove (201) so that the size of the positioning area is changed. The clamping assembly (30) includes a group of clamping plates (32) movably disposed in a receiving groove (11), the clamping plates (32) being close to each other and clamping the bridge housing.
2. The hole machining device for the drive axle housing according to claim 1, characterized in that, The positioning posts include positioning post one (21) and positioning post two (22). Positioning post one (21) is arranged in a group at the axial positions at both ends of the bridge housing in the receiving groove (11), and positioning post two (22) is arranged circumferentially in the receiving groove (11) at the position corresponding to the main body of the bridge housing.
3. The hole machining device for the drive axle housing according to claim 1, characterized in that, The clamping assembly (30) also includes an electric telescopic rod (31) disposed on the side wall of the receiving groove (11), the output end of which is connected to the clamping plate (32).
4. The hole machining device for the drive axle housing according to claim 1, characterized in that, The clamping plate (32) has a flexible contact part (33) at one end near the bridge housing.
5. The hole machining device for the drive axle housing according to claim 1, characterized in that, It also includes a cover plate assembly, which is detachably disposed against the end face of the bridge housing body. The cover plate assembly includes a plate (41) and a plurality of reserved holes (42) are provided on the plate (41).
6. The hole machining apparatus for the drive axle housing according to claim 5, characterized in that, The plate (41) is symmetrically provided with extensions (43), and the clamp plate (10) is symmetrically provided with inserts (45). The extensions (43) are provided with insertion holes (44) corresponding to the positions of the inserts (45), and the insertion holes (44) are inserted into the inserts (45).
7. The hole machining apparatus for the drive axle housing according to claim 6, characterized in that, The insert (45) has a threaded section on its outer wall. After the insert (45) is inserted into the corresponding insertion hole (44), a locking nut (46) is screwed on its top.