A connecting rod end face milling device
By using a bidirectional threaded rod and a limiting post design, combined with an electric telescopic rod and a vacuum cleaner, the problems of dust splashing and inconvenient fixing in the connecting rod end milling device are solved, achieving stable clamping and efficient dust cleaning, thus improving the operating environment and processing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAICANG JIANERCHENG PRECISION MASCH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-14
AI Technical Summary
Existing connecting rod end face milling devices generate dust splashes and debris diffusion during the milling process, affecting the operating environment and being inconvenient to fix.
The design employs a bidirectional threaded rod and a limiting post, combined with an electric telescopic rod and a vacuum cleaner, to achieve stable clamping of the connecting rod and dust collection. The threaded rod is rotated through gear meshing, which, together with the vacuum head and collection box, reduces dust pollution and collects debris.
This achieved stable fixing of the connecting rod and efficient dust removal, improving the operating environment and enhancing the practicality and processing quality of the device.
Smart Images

Figure CN224487760U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of connecting rod end face machining, and in particular to a connecting rod end face milling device. Background Technology
[0002] Linkages are key connecting components in mechanical systems that enable the conversion between reciprocating motion and rotary motion, playing an indispensable role in various power transmission and mechanical action execution scenarios.
[0003] A connecting rod end face milling device is disclosed on the Chinese Patent Network (publication number: CN221910872U). It includes a base, a servo motor fixedly connected to the middle of the left end of the base, a threaded rod fixedly connected to the output end of the servo motor, and the other end of the threaded rod rotatably connected to the inner wall of the base. A threaded sleeve is threadedly connected to the outer side of the threaded rod, and a large-end clamping block is fixedly connected to the upper end of the threaded sleeve. A small-end clamping block, which mates with the large-end clamping block, is fixedly connected to the middle of the upper right side of the base. This invention achieves the effect of clamping and fixing connecting rods of different lengths through the cooperation of the servo motor, threaded rod, threaded sleeve, large-end clamping block, small-end clamping block, fastening bolt, fixing plate, spring, and fixing block. This solves the problem that existing devices can only mill connecting rods of a single length, thus making the device more versatile.
[0004] The solution also has the following problems: when the device mills the connecting rod with the milling blade, dust and debris will be splashed all over the operating table, which is inconvenient to clean later. The dust will also spread into the external environment and affect the operation of the staff. Furthermore, it is inconvenient to limit and fix the connecting rod. Therefore, there are certain drawbacks.
[0005] Therefore, in order to solve the above problems, this application provides a connecting rod end face milling device. Utility Model Content
[0006] The purpose of this invention is to provide a connecting rod end face milling device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a connecting rod end face milling device, comprising a base, a fixed seat mounted on one top end of the base, a fixed frame mounted on one top end of the fixed seat, a bidirectional threaded rod mounted between the inner side walls of the fixed frame, movable blocks symmetrically mounted on the outer ring surface of the bidirectional threaded rod, a fixed arc plate mounted on the top of the movable block, limit posts mounted on both ends of the fixed arc plate, a sliding groove opened at the top end of the base away from the fixed seat, a sliding rod mounted between the inner side walls of the sliding groove, a slider mounted on the outside of the sliding rod, a support frame mounted on the top of the slider, a first electric telescopic rod mounted on one outer end of the support frame, a protective cover mounted on the movable end of the first electric telescopic rod, a drive motor mounted on the wider inner side wall of the protective cover, a milling blade mounted on the output shaft of the drive motor, and dust suction heads mounted on the narrower inner side walls of the protective cover.
[0008] Preferably, a second electric telescopic rod is installed at the top end of the fixed base away from the fixed frame, a slide rail is installed at the top of the fixed base near the second electric telescopic rod, a rack is installed on the slide rail, and a connecting lug is installed on the movable end of the second electric telescopic rod, with one end connected to the rack.
[0009] Preferably, one end of the bidirectional threaded rod extends through the outside of the fixed frame and is fitted with a gear, which meshes with the rack.
[0010] Preferably, the outer ring surface of the bidirectional threaded rod is threadedly connected to the interior of the two movable blocks, and the bottom of the movable blocks is in contact with the inner bottom of the fixed frame.
[0011] Preferably, an anti-slip pad is installed on the outer ring surface of the limiting post, and the anti-slip pad is made of soft rubber.
[0012] Preferably, the outer ring surface of the slide rod is slidably connected to the interior of the slider, and the outer side surface of the slider is slidably connected to the inner side wall of the groove.
[0013] Preferably, a vacuum cleaner is installed on the top of the protective cover, and a suction pipe is installed at the output end of the vacuum cleaner and extends into the interior of the protective cover and is connected to the suction head.
[0014] Preferably, a collection box is installed on top of the base and below the milling plate.
[0015] In summary, this application includes the following beneficial technical effects:
[0016] This connecting rod end face milling device uses gears to drive a bidirectional threaded rod to rotate synchronously, causing two movable blocks on the bidirectional threaded rod to move relative to or away from each other. This enables two sets of limiting posts on two fixed arc plates to clamp or release the connecting rod. The first electric telescopic rod can push the protective cover to move, bringing the milling blade close to the end face of the connecting rod for milling. The drive motor provides rotational power to the milling blade, realizing end face milling. After the vacuum cleaner is started, it forms a negative pressure inside the protective cover through the suction pipe connected to the suction head. The suction head sucks in the dust around the processing area, which enters the vacuum cleaner through the suction pipe for collection and treatment, thereby effectively reducing dust pollution at the processing site and improving the working environment. The debris generated during milling falls onto the collection box for collection. The device is convenient to operate and has better practicality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a utility model Figure 1 Schematic diagram on the right side of the structure;
[0019] Figure 3 This is a schematic diagram of the structure of the fixing base part of this utility model;
[0020] Figure 4 This is a schematic diagram of the protective cover part of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Base; 101. Slide groove; 2. Fixed seat; 3. Fixed frame; 4. Two-way threaded rod; 5. Movable block; 6. Fixed arc plate; 7. Limiting post; 701. Anti-slip pad; 8. Slide rod; 9. Slider; 10. Support frame; 11. First electric telescopic rod; 12. Protective cover; 13. Drive motor; 14. Milling blade; 15. Vacuum head; 16. Second electric telescopic rod; 17. Slide rail; 18. Rack; 19. Connecting ear; 20. Gear; 21. Vacuum cleaner; 22. Vacuum hose; 23. Collection box. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0023] A connecting rod end face milling device, as shown in the reference Figure 1 - Figure 4The system includes a base 1, a fixed seat 2 installed at one top end of the base 1, a fixed frame 3 installed at one top end of the fixed seat 2, a bidirectional threaded rod 4 installed between the inner side walls of the fixed frame 3, movable blocks 5 symmetrically installed on the outer ring surface of the bidirectional threaded rod 4, a fixed arc plate 6 installed on the top of the movable block 5, and limit posts 7 installed at both ends of the fixed arc plate 6. A slide groove 101 is opened at the top end of the base 1 away from the fixed seat 2, a slide rod 8 is installed between the inner side walls of the slide groove 101, a slider 9 is installed on the outside of the slide rod 8, a support frame 10 is installed on the top of the slider 9, a first electric telescopic rod 11 is installed on one outer end of the support frame 10, a protective cover 12 is installed on the movable end of the first electric telescopic rod 11, a drive motor 13 is installed on the wider side wall inside the protective cover 12, a milling blade 14 is installed on the output shaft of the drive motor 13, and a dust suction head 15 is installed on both narrower side walls inside the protective cover 12.
[0024] Reference Figure 1 - Figure 3 A second electric telescopic rod 16 is installed at the top of the fixed base 2, away from the fixed frame 3. A slide rail 17 is installed on the top of the fixed base 2 near the second electric telescopic rod 16. A rack 18 is installed on the slide rail 17. A connecting ear 19 is installed on the movable end of the second electric telescopic rod 16, and one end is connected to the rack 18. The second electric telescopic rod 16 drives the rack 18 to make linear reciprocating motion on the slide rail 17 through the telescopic movement of the movable end, with the help of the connecting ear 19. The slide rail 17 plays a guiding role to ensure the stability of the movement of the rack 18. The movement of the rack 18 provides the power transmission basis for the subsequent cooperation with the gear 20 to drive the rotation of the bidirectional threaded rod 4. One end of the bidirectional threaded rod 4 passes through the outside of the fixed frame 3 and is equipped with a gear 20. The gear 20 and the rack 18 mesh with each other. The linear motion of the rack 18 will be converted into the rotational motion of the gear 20. The gear 20 drives the bidirectional threaded rod 4 to rotate synchronously.
[0025] Reference Figure 1 - Figure 3The outer ring surface of the bidirectional threaded rod 4 is threadedly connected to the interior of the two movable blocks 5, and the bottom of the movable blocks 5 is in contact with the inner bottom of the fixed frame 3. The gear 20 drives the bidirectional threaded rod 4 to rotate synchronously, thereby causing the two movable blocks 5 on the bidirectional threaded rod 4 to move relative to or away from each other, realizing the clamping or loosening operation of the two sets of limiting posts 7 on the two fixed arc plates 6 on the connecting rod. The contact between the bottom of the movable block 5 and the inner bottom of the fixed frame 3 restricts the rotational freedom of the movable block 5, so that the movable block 5 can only move along the axial direction of the bidirectional threaded rod 4. In linear motion, the outer ring surface of the limiting post 7 is equipped with an anti-slip pad 701. The anti-slip pad 701 is made of soft rubber. When the fixing arc plate 6 clamps the connecting rod, the limiting post 7 contacts the connecting rod. The soft rubber anti-slip pad 701 on its outer ring surface can increase the friction between the limiting post 7 and the connecting rod, further improving the stability of the connecting rod fixation and preventing the connecting rod from sliding or rotating during processing. At the same time, the soft rubber material can also play a buffering role, avoiding direct rigid contact between the limiting post 7 and the connecting rod, which would damage the surface of the connecting rod and protect the processing quality of the connecting rod.
[0026] Reference Figure 1 - Figure 4 The outer ring surface of the slide rod 8 is slidably connected to the interior of the slider 9, and the outer side surface of the slider 9 is slidably connected to the inner side wall of the groove 101. When the milling position needs to be adjusted, the support frame 10 is pushed by external force, and the slider 9 slides smoothly along the direction of the groove 101 on the slide rod 8, driving the support frame 10 and the milling blade 14 on it to move for milling. The first electric telescopic rod 11 can push the protective cover 12 to move, so that the milling blade 14 is close to the end face of the connecting rod for milling operation. The drive motor 13 provides rotation for the milling blade 14. Powered by a vacuum cleaner 21, which enables end milling, the protective cover 12 is equipped with a vacuum cleaner 21 on its top. The output end of the vacuum cleaner 21 is connected to a suction pipe 22, which extends into the interior of the protective cover 12 and is connected to a suction head 15. After the vacuum cleaner 21 is started, it forms a negative pressure inside the protective cover 12 through the suction pipe 22 and the suction head 15. The suction head 15 sucks in the dust around the processing area, which enters the vacuum cleaner 21 through the suction pipe 22 for collection and treatment, thereby effectively reducing dust pollution at the processing site and improving the working environment.
[0027] Reference Figure 1 - Figure 2 A collection box 23 is installed on the top of the base 1 and below the milling blade 14. During the milling process, the chips that fall into the collection box 23 are collected.
[0028] The implementation principle of the connecting rod end face milling device in this application embodiment is as follows: When using the device, the second electric telescopic rod 16 drives the rack 18 to perform linear reciprocating motion on the slide rail 17 through the telescopic movement of its movable end, with the help of the connecting ear 19. The slide rail 17 acts as a guide to ensure the stability of the rack 18's movement. The linear motion of the rack 18 is converted into the rotational motion of the gear 20. The gear 20 drives the bidirectional threaded rod 4 to rotate synchronously, thereby causing the two movable blocks 5 on the bidirectional threaded rod 4 to move relative to or away from each other. This realizes the clamping or loosening operation of the two sets of limiting posts 7 on the two fixed arc plates 6 on the connecting rod. The bottom of the movable block 5 is attached to the inner bottom of the fixed frame 3, which restricts the rotational freedom of the movable block 5, so that the movable block 5 can only move linearly along the axial direction of the bidirectional threaded rod 4. The limiting post 7 contacts the connecting rod, and the soft rubber anti-slip pad 701 on its outer ring surface can increase the friction between the stick and the connecting rod, further improving the stability of the connecting rod fixation and preventing the connecting rod from being damaged during processing. During the process, sliding or rotation may occur. The soft rubber material also acts as a buffer, preventing the limit post 7 from directly contacting the connecting rod and causing damage to its surface, thus protecting the machining quality of the connecting rod. When the milling position needs to be adjusted, external force pushes the support frame 10, and the slider 9 slides smoothly along the slide groove 101 on the slide rod 8, driving the support frame 10 and its milling blade 14 to move for milling. The first electric telescopic rod 11 can push the protective cover 12 to move, bringing the milling blade 14 closer to the connecting rod end face for milling. The drive motor 13 provides rotational power to the milling blade 14 to achieve end face milling. After the vacuum cleaner 21 is started, it is connected to the vacuum head 15 through the vacuum pipe 22 to form a negative pressure inside the protective cover 12. The vacuum head 15 sucks in the dust around the processing area and enters the vacuum cleaner 21 through the vacuum pipe 22 for collection and treatment, thereby effectively reducing dust pollution at the processing site and improving the working environment. The chips generated during the milling process fall onto the collection box 23 for collection. The operation is convenient and the practicality is better.
[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A connecting rod end face milling device, comprising a base (1), characterized in that: A fixed seat (2) is installed at one top end of the base (1), and a fixed frame (3) is installed at one top end of the fixed seat (2). A double-threaded rod (4) is installed between the inner side walls of the fixed frame (3). Movable blocks (5) are symmetrically installed on the outer ring surface of the double-threaded rod (4). A fixed arc plate (6) is installed on the top of the movable block (5). Limiting posts (7) are installed at both ends of the fixed arc plate (6). A sliding groove (101) is opened at the top end of the base (1) away from the fixed seat (2). A mounting plate (7) is installed between the inner side walls of the sliding groove (101). There is a slide bar (8), a slider (9) is installed on the outside of the slide bar (8), a support frame (10) is installed on the top of the slider (9), a first electric telescopic rod (11) is installed on one end of the support frame (10), a protective cover (12) is installed on the movable end of the first electric telescopic rod (11), a drive motor (13) is installed on the wider side wall inside the protective cover (12), a milling blade (14) is installed on the output shaft of the drive motor (13), and a dust suction head (15) is installed on both the narrower side walls inside the protective cover (12).
2. The connecting rod end face milling device according to claim 1, characterized in that: A second electric telescopic rod (16) is installed at the top of the fixed base (2) away from the fixed frame (3). A slide rail (17) is installed on the top of the fixed base (2) near the second electric telescopic rod (16). A rack (18) is installed on the slide rail (17). A connecting ear (19) is installed on the movable end of the second electric telescopic rod (16) and one end is connected to the rack (18).
3. The connecting rod end face milling device according to claim 1, characterized in that: One end of the bidirectional threaded rod (4) extends through the outside of the fixed frame (3) and a gear (20) is installed thereon. The gear (20) meshes with the rack (18).
4. The connecting rod end face milling device according to claim 3, characterized in that: The outer ring surface of the bidirectional threaded rod (4) is threadedly connected to the interior of the two movable blocks (5), and the bottom of the movable blocks (5) is in contact with the inner bottom of the fixed frame (3).
5. A connecting rod end face milling device according to claim 1, characterized in that: An anti-slip pad (701) is installed on the outer ring surface of the limiting post (7), and the anti-slip pad (701) is made of soft rubber.
6. The connecting rod end face milling device according to claim 1, characterized in that: The outer ring surface of the slide rod (8) is slidably connected to the interior of the slider (9), and the outer side surface of the slider (9) is slidably connected to the inner side wall of the groove (101).
7. The connecting rod end face milling device according to claim 1, characterized in that: A vacuum cleaner (21) is installed on the top of the protective cover (12). The output end of the vacuum cleaner (21) is equipped with a suction pipe (22) that extends into the interior of the protective cover (12) and is connected to the suction head (15).
8. A connecting rod end face milling device according to claim 1, characterized in that: A collection box (23) is installed on top of the base (1) and below the milling plate (14).