Engine connecting rod boring clamp
By designing an engine connecting rod boring fixture containing socket shafts, resistance blocks and oil cylinders, the problems of low clamping efficiency and poor applicability of existing fixtures are solved, rapid positioning and multi-model adaptation are achieved, and processing efficiency and economy are improved.
Patent Information
- Application Number
- CN202422067260.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Existing engine connecting rod machining fixtures have shortcomings in terms of clamping efficiency and economicality. High automation fixtures are costly and have poor applicability, and ordinary fixtures are inefficient and cannot adapt to multiple models.
A clamp structure including a base, vertical plate, socket shaft, resistance block and oil cylinder is designed. Through the combination of socket shaft and resistance block, the cylinder drive pressure block is combined to achieve rapid positioning and adaptation to the clamping of different types of connecting rods, and the multi-stage step shaft and nut connection is used to achieve stable locking.
It realizes fast clamping and efficient processing, adapts to multiple models of connecting rods, and improves the applicability and economicality of the fixture.
Smart Images
Figure CN223114661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing fixtures, in particular to an engine connecting rod boring fixture. Background Art
[0002] In the prior art, turning is often used to process the large-diameter hole of the engine connecting rod. If the opposing surfaces of the two clamping blocks of the flat-nose pliers are designed to be V-shaped, the connecting rod can also be clamped, but the screw must be rotated again for each clamping, which is too inefficient and not suitable for mass production. If a set of highly automated and fast clamping fixtures is designed, although the efficiency can be improved, it can often only be used for one type of connecting rod, resulting in high equipment costs and lack of economy, which needs to be improved. Utility Model Content
[0003] In order to solve the problems mentioned in the background technology, the purpose of the utility model is to provide an engine connecting rod boring fixture.
[0004] In order to achieve the above objectives, the technical solution of the utility model is:
[0005] The cam is provided with a plurality of locking plates, the locking plates having the plurality of locking plates being mounted on the cam face and the plurality of locking plates being mounted on the plurality of locking plates.
[0006] Furthermore, a strip hole is provided on the right side of the end face of the vertical plate facing the machine tool spindle, and the strip hole is horizontally arranged. The locking device includes a screw and a nut. The sleeve shaft is a two-stage step shaft. The screw is fixedly connected to the large diameter end of the sleeve shaft. The radius of the small diameter section of the sleeve shaft corresponds to the small hole of the connecting rod, and the length of the large diameter section of the sleeve shaft corresponds to the thickness of the interference block. The nut is threadedly connected to the screw, and the screw passes through the strip hole. The vertical plate is clamped between the nut and the sleeve shaft.
[0007] Further, a strip-shaped hole three is formed in the vertical plate below the strip-shaped hole one. The strip-shaped hole three is vertically arranged. The locking device three includes a screw rod three and a nut three. The screw rod three is fixedly connected to one end of the axial direction of the middle support rod. The screw rod three passes through the strip-shaped hole three, and the nut three is threadedly connected to the screw rod three. The vertical plate is clamped between the middle support rod and the nut three.
[0008] Further, a strip-shaped hole two is formed in the middle of the end face of the vertical plate facing the machine tool spindle. The strip-shaped hole two is horizontally arranged. The locking device two includes a plurality of screw rods two and nuts two. The screw rods two are fixedly connected to the end faces of the abutting blocks in contact with the vertical plate. A plurality of the screw rods two all pass through the strip-shaped hole two. Nuts two are threadedly connected to the screw rods two. The vertical plate is clamped between the nut two and the abutting block.
[0009] Further, a screw rod four is fixedly connected to the main shaft of the oil cylinder. A nut four is threadedly connected to the screw rod four. A strip-shaped hole four is formed in the pressing block. The strip-shaped hole four is horizontally arranged. The screw rod four penetrates through the strip-shaped hole four. The pressing block is clamped between the main shaft of the oil cylinder and the nut four.
[0010] The beneficial effects of the present utility model are as follows: during use, the small hole of the connecting rod is sleeved on the socket shaft, and then the connecting rod is placed on the middle support shaft to complete the preliminary positioning of the connecting rod. Then, the oil cylinder is used to drive the pressing block to press the big end of the connecting rod, so as to quickly complete the positioning of the connecting rod, and the clamping efficiency is high; according to the model of the connecting rod, socket shafts, abutting blocks and pressing blocks with different sizes can be replaced, and the height of the middle support rod can be adjusted, so as to adapt to the clamping of connecting rods of different models, effectively improving the applicability of the fixture and the economy. Description of the Drawings
[0011] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;
[0012] Figure 2 is an exploded view of an embodiment of the present utility model.
[0013] Description of the drawing reference numerals: 1, base; 11, vertical plate; 12, strip-shaped hole one; 13, strip-shaped hole three; 14, strip-shaped hole two; 2, socket shaft; 21, screw rod one; 22, nut one; 3, abutting block; 31, anti-interference hole; 32, screw rod two; 33, nut two; 4, middle support rod; 41, screw rod three; 42, nut three; 5, oil cylinder; 51, screw rod four; 52, nut four; 6, pressing block; 61, through hole; 62, strip-shaped hole four; 7, connecting rod. Detailed Embodiment
[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the utility model.
[0015] like Figure 1 - Figure 2 As shown, an engine connecting rod boring fixture includes a base 1, which is mounted on a slide table (not shown) of a machine tool, a vertical plate 11 is mounted on the base 1, the vertical plate 11 is perpendicular to the main axis of the machine tool, a sleeve shaft 2 and a resistance block 3 are movably mounted on the end surface of the vertical plate 11 facing the main axis of the machine tool in a horizontal direction, the resistance block 3 and the sleeve shaft 2 are arranged at intervals, the sleeve shaft 2 is parallel to the main axis of the machine tool, an anti-interference hole 31 corresponding to the large hole size of the connecting rod 7 is opened on the resistance block 3, and a sleeve shaft 2 and a resistance block 3 are arranged on the vertical plate 11 between the sleeve shaft 2 and the resistance block 3. An intermediate support rod 4 is installed longitudinally and movably. The sleeve shaft 2, the resistance block 3 and the intermediate support rod 4 are locked on the vertical plate 11 by locking devices 1, 2 and 3 respectively. A cylinder 5 is installed horizontally on the end surface of the vertical plate 11 away from the main axis of the machine tool. The piston rod of the cylinder 5 is parallel to the main axis of the machine tool and the piston rod of the cylinder 5 passes through the vertical plate 11. The end of the piston rod of the cylinder 5 is detachably connected with a pressure block 6. The pressure block 6 partially blocks the resistance block 3. A through hole 61 is opened in the pressure block 6 at the position corresponding to the anti-interference hole 31.
[0016] In actual use, the tool is first installed on the main shaft of the machine tool, and then the small hole of the connecting rod 7 is sleeved on the sleeve shaft 2, and then the connecting rod 7 is placed on the intermediate support shaft to complete the preliminary positioning of the connecting rod 7, and then the oil cylinder 5 is used to drive the pressure block 6 to press the big end of the connecting rod 7, so as to quickly complete the positioning of the connecting rod 7 with high clamping efficiency. After clamping, the slide of the machine tool is operated to make the connecting rod 7 close to the tool, so as to punch the large hole of the connecting rod 7; according to the model of the connecting rod 7, the sleeve shaft 2, the abutment block 3 and the pressure block 6 of different sizes can be replaced, and the height of the intermediate support rod 4 can be adjusted, so as to adapt to the clamping of connecting rods 7 of different models, which can effectively improve the applicability of the fixture and improve the economy.
[0017] In this embodiment, a first strip-shaped hole 12 is formed on the right side of the end face of the vertical plate 11 facing the machine tool spindle. The first strip-shaped hole 12 is horizontally arranged. The first locking device includes a first screw 21 and a first nut 22. The socket shaft 2 is a two-stage stepped shaft. The first screw 21 is fixedly connected to the large-diameter end of the socket shaft 2. The radius of the small-diameter section of the socket shaft 2 corresponds to the small hole of the connecting rod 7. The length of the large-diameter section of the socket shaft 2 corresponds to the thickness of the abutting block 3. The first nut 22 is threadedly connected to the first screw 21. The first screw 21 passes through the first strip-shaped hole 12. The vertical plate 11 is clamped between the first nut 22 and the socket shaft 2. The design is reasonable, which is convenient for machining and manufacturing and assembly. The socket shaft 2 is designed as a two-stage stepped shaft. When the small hole of the connecting rod 7 is sleeved on the small-diameter section of the socket shaft 2, it is ensured that the small head and the large head of the connecting rod 7 respectively abut against the end of the large-diameter section of the socket shaft 2 and the abutting block 3, avoiding the skew of the connecting rod 7.
[0018] In this embodiment, a third strip-shaped hole 13 is formed below the first strip-shaped hole on the vertical plate 11. The third strip-shaped hole 13 is longitudinally arranged. The third locking device includes a third screw 41 and a third nut 42. The third screw 41 is fixedly connected to one end of the intermediate support rod 4 in the axial direction. The third screw 41 passes through the third strip-shaped hole 13. The third nut 42 is threadedly connected to the third screw 41. The vertical plate 11 is clamped between the intermediate support rod 4 and the third nut 42. The design is reasonable, which is convenient for assembling the intermediate support rod 4.
[0019] In this embodiment, a second strip-shaped hole 14 is formed in the middle of the end face of the vertical plate 11 facing the machine tool spindle. The second strip-shaped hole 14 is horizontally arranged. The second locking device includes two second screws 32 and a second nut 33. The second screws 32 are fixedly connected to the end face of the abutting block 3 in contact with the vertical plate 11. Both second screws 32 pass through the second strip-shaped hole 14. A second nut 33 is threadedly connected to the second screw 32. The vertical plate 11 is clamped between the second nut 33 and the abutting block 3. The design is reasonable, which is convenient for assembling the abutting block 3.
[0020] In this embodiment, a fourth screw 51 is fixedly connected to the main shaft of the oil cylinder 5. A fourth nut 52 is threadedly connected to the fourth screw 51. A fourth strip-shaped hole 62 is formed on the pressing block 6. The fourth strip-shaped hole 62 is horizontally arranged. The fourth screw 51 passes through the fourth strip-shaped hole 62. The pressing block 6 is clamped between the main shaft of the oil cylinder 5 and the fourth nut 52. The design is reasonable, which is convenient for adjusting the position of the pressing block 6 in the horizontal direction, so that the through hole 61 on the pressing block 6 corresponds to the anti-interference hole 31 on the abutting block 3.
[0021] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An engine connecting rod boring fixture, comprising a base (1), the base (1) being installed on the slide table of a machine tool, characterized in that, A vertical plate (11) is installed on the base (1), the vertical plate (11) is perpendicular to the main axis of the machine tool, a sleeve shaft (2) and a contact block (3) are movably installed in the horizontal direction on the end surface of the vertical plate (11) facing the main axis of the machine tool, the contact block (3) and the sleeve shaft (2) are arranged at intervals, the sleeve shaft (2) is parallel to the main axis of the machine tool, an anti-interference hole (31) corresponding to the size of the large hole of the connecting rod is opened on the contact block (3), an intermediate support rod (4) is movably installed in the longitudinal direction on the vertical plate (11) between the sleeve shaft (2) and the contact block (3), the sleeve shaft (2) is arranged to be parallel to the main axis of the machine tool, an anti-interference hole (31) corresponding to the size of the large hole of the connecting rod is opened on the contact block (3), and an intermediate support rod (4) is movably installed in the longitudinal direction on the vertical plate (11) between the sleeve shaft (2) and the contact block (3). ), the abutment block (3) and the intermediate support rod (4) are locked on the vertical plate (11) by means of locking devices 1, 2 and 3 respectively; an oil cylinder (5) is horizontally mounted on the end surface of the vertical plate (11) which faces away from the main axis of the machine tool; the piston rod of the oil cylinder (5) is parallel to the main axis of the machine tool and the piston rod of the oil cylinder (5) passes through the vertical plate (11); a pressure block (6) is detachably connected to the end of the piston rod of the oil cylinder (5); the pressure block (6) partially blocks the abutment block (3); a through hole (61) is provided on the pressure block (6) at a position corresponding to the anti-interference hole (31).
2. The boring fixture for an engine connecting rod according to claim 1, characterized in that, The right side of the end surface of the vertical plate (11) facing the machine tool spindle is provided with a strip hole (12), the strip hole (12) is arranged horizontally, the locking device (1) comprises a screw rod (21) and a nut (22), the sleeve shaft (2) is a two-stage stepped shaft, the screw rod (21) is fixedly connected to the large diameter end of the sleeve shaft (2), the radius of the small diameter section of the sleeve shaft (2) corresponds to the small hole of the connecting rod, the length of the large diameter section of the sleeve shaft (2) corresponds to the thickness of the abutment block (3), the nut (22) is threadedly connected to the screw rod (21), the screw rod (21) passes through the strip hole (12), and the vertical plate (11) is clamped between the nut (22) and the sleeve shaft (2).
3. The boring fixture for an engine connecting rod according to claim 2, characterized in that, A strip hole three (13) is provided on the vertical plate (11) below the strip hole one, and the strip hole three (13) is arranged longitudinally. The locking device three comprises a screw rod three (41) and a nut three (42). The screw rod three (41) is fixedly connected to one axial end of the intermediate support rod (4), and the screw rod three (41) passes through the strip hole three (13). The nut three (42) is threadedly connected to the screw rod three (41). The vertical plate (11) is clamped between the intermediate support rod (4) and the nut three (42).
4. A boring fixture for an engine connecting rod according to claim 1, characterized in that, A second strip hole (14) is provided in the middle of the end surface of the vertical plate (11) facing the main shaft of the machine tool. The second strip hole (14) is arranged horizontally. The second locking device comprises a plurality of second screw rods (32) and a second nut (33). The second screw rods (32) are fixedly connected to the end surface of the abutment block (3) abutting the vertical plate (11). The plurality of second screw rods (32) all pass through the second strip hole (14). The second screw rods (32) are threadedly connected with a second nut (33). The vertical plate (11) is clamped between the second nut (33) and the abutment block (3).
5. The boring fixture for an engine connecting rod according to claim 1, characterized in that, A screw rod four (51) is fixedly connected to the main shaft of the oil cylinder (5). A nut four (52) is threadedly connected to the screw rod four (51). A strip-shaped hole four (62) is formed in the pressing block (6). The strip-shaped hole four (62) is horizontally arranged. The screw rod four (51) penetrates through the strip-shaped hole four (62). The pressing block (6) is clamped between the main shaft of the oil cylinder (5) and the nut four (52).