Bidirectional positioning machining clamp for cylinder sleeve

Abstract

The utility model relates to the technical field of clamps, and discloses a bidirectional positioning machining clamp for a cylinder liner, which comprises a base, one end of the base is fixedly connected with a control box, the upper side of the base is provided with a clamping assembly, the clamping assembly comprises a first electric telescopic rod fixedly connected with the upper side of the base, and the upper end of the first electric telescopic rod is fixedly connected with a support. First inserting rods are fixedly connected to the lower sides of the two ends of the support, the lower ends of the first inserting rods are inserted into first sleeves, the lower ends of the first sleeves are fixedly connected to the base, air cylinders are rotationally connected to the inner sides of the support, clamping plates are fixedly connected to one ends of the air cylinders, and rubber pads are fixedly connected to the ends, away from the air cylinders, of the clamping plates. And the ends, away from the clamping plates, of the fixing frames are fixedly connected with the second sleeve, automatic reversing clamping can be conducted on the cylinder sleeve through cooperation of the clamping assembly and the adjusting assembly, manual adjustment of workers is not needed, then the situation that the machining efficiency is reduced due to operation of the workers is effectively reduced, and operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically to a bidirectional positioning machining fixture for cylinder liners. Background Technology

[0002] A cylinder liner is a bushing or bushing made of steel. It has the characteristics of high strength, good plasticity and toughness, and impact resistance. It is commonly used in construction, machinery, automobiles and oil drilling. During the production and processing of cylinder liners, clamps are required to hold and fix the cylinder liners for subsequent processing.

[0003] A search revealed that Chinese patent application CN202023237290.1 ​​proposes a bidirectional positioning machining fixture for cylinder liners, comprising a base plate, a left platform, and a right platform. The left and right sides of the upper end face of the base plate are respectively provided with the left and right platforms. The left platform has a first clamping cylinder on its left rear side, front middle side, and right middle side. The right platform has a second clamping cylinder on its rear middle side, left front end, and right front end. The left platform has a transverse insertion post in the middle of its upper end face, and the right platform has a central positioning hole in the middle of its upper end face. This prior art has the advantages of simple structure, stable clamping, convenient operation, fast clamping speed, and improved production efficiency.

[0004] In the aforementioned prior art, the cylinder liner is clamped in different directions by installing two clamps at both ends of the fixture. After one end of the cylinder liner is processed, it can be removed and its direction changed to be installed on the other end of the fixture to process the other end, thereby improving the ease of use of the fixture. Although this clamping method can clamp both ends of the cylinder liner on the same fixture, when it is necessary to change the clamping direction, the cylinder liner must be removed first and then clamped using the other end of the fixture. The operation process is relatively cumbersome, and the material change process is time-consuming, reducing processing efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a bidirectional positioning machining fixture for cylinder liners, which solves the problem that existing bidirectional positioning machining fixtures for cylinder liners do not automatically adjust the direction when positioning the two ends of the cylinder liner, requiring manual replacement by workers and reducing machining efficiency.

[0006] This utility model provides the following technical solution: a bidirectional positioning machining fixture for cylinder liners, including a base, a control box fixedly connected to one end of the base, and a clamping assembly provided on the upper side of the base. The clamping assembly includes a first electric telescopic rod fixedly connected to the upper side of the base, and a bracket fixedly connected to the upper end of the first electric telescopic rod. First insert rods are fixedly connected to the lower sides of both ends of the bracket, and the lower ends of the first insert rods are inserted into a first sleeve. The lower ends of the first sleeve are fixedly connected to the base.

[0007] The above technical solution provides auxiliary restraint at both ends of the bracket by inserting the first rod and the first sleeve.

[0008] As a preferred embodiment of the above technical solution, a cylinder is rotatably connected to the inner side of the bracket, and a clamping plate is fixedly connected to one end of the cylinder, with a rubber pad fixedly connected to the end of the clamping plate away from the cylinder.

[0009] The above technical solution utilizes rubber pads to protect the outer side of the cylinder liner.

[0010] As a preferred embodiment of the above technical solution, one end of each of the two sets of clamps is fixedly connected to a fixing frame, and the end of one set of fixing frames away from the clamps is fixedly connected to a second sleeve. The end of the second sleeve away from the fixing frame is internally provided with a second insert rod, and the end of the second insert rod away from the second sleeve is fixedly connected to another set of fixing frames.

[0011] The above technical solution allows the clamps on both sides to rotate and adjust simultaneously by connecting the second sleeve and the second insert rod.

[0012] As a preferred embodiment of the above technical solution, an adjustment assembly is provided on the outer side of the cylinder near the control box. The adjustment assembly includes a motor located on the outer side of the cylinder near the control box. A controller is fixedly connected to the side of the motor away from the cylinder, and a second electric telescopic rod is fixedly connected to the lower side of the motor. The lower end of the second electric telescopic rod is fixedly connected to the base.

[0013] The above technical solution utilizes the operation of the second electric telescopic rod to drive the motor and other components for movement and adjustment.

[0014] As a preferred embodiment of the above technical solution, the motor output shaft is fixedly connected to a first gear, and the end of the first gear away from the motor is fixedly connected to a cylinder. The outer gear of the first gear meshes with a first toothed belt, and a retaining plate is sleeved on the outer side of the middle end of the first toothed belt. The inner side of the end of the first toothed belt away from the first gear meshes with a second gear, and both ends of the second gear are rotatably connected to a base. One end of the retaining plate is rotatably connected to a push plate, and the end of the push plate away from the retaining plate is rotatably connected to a fixing block. The end of the fixing block near the motor is fixedly connected to the motor.

[0015] The above technical solution utilizes the movement of the fixed block to pull the push plate, thereby adjusting the position of the clamping plate and thus adjusting the vertical length of the first toothed belt.

[0016] As a preferred embodiment of the above technical solution, the outer gear at the end of the second gear away from the first toothed belt meshes with the second toothed belt, and the inner gear at the end of the second toothed belt away from the second gear meshes with the third gear. One side of the third gear is rotatably connected to the base, and the other side of the third gear is fixedly connected to a transmission rod.

[0017] The above technical solution utilizes a transmission rod to drive the turntable and positioning rod for adjustment.

[0018] As a preferred embodiment of the above technical solution, the end of the transmission rod away from the third gear is fixedly connected to the base through the transmission rod, and the end of the turntable away from the transmission rod is rotatably connected to the base, with positioning rods fixedly connected to both ends of the turntable.

[0019] Through the above technical solution, the two sets of positioning rods are set with different sizes in order to position and limit the two ends of the cylinder liner.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This bidirectional positioning machining fixture for cylinder liners can automatically reverse the direction of the cylinder liner through the cooperation of the clamping and adjusting components, eliminating the need for manual adjustment by workers. This effectively reduces worker operation and processing efficiency, while improving the convenience of operation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a two-way positioning machining fixture for cylinder liners;

[0023] Figure 2 This is a first-view cross-sectional structural diagram of a two-way positioning machining fixture for cylinder liners;

[0024] Figure 3 This is a schematic diagram of a second-view cross-sectional structure of a two-way positioning machining fixture for cylinder liners;

[0025] Figure 4 This is a schematic diagram of the inner structure of a bidirectional positioning machining fixture base and bracket for cylinder liners.

[0026] In the diagram: 1. Base; 11. Control box; 2. Clamping assembly; 21. First electric telescopic rod; 22. Bracket; 23. First insert rod; 24. First sleeve; 25. Cylinder; 26. Clamping plate; 27. Rubber pad; 28. Fixing frame; 29. ​​Second sleeve; 210. Second insert rod; 3. Adjustment assembly; 31. Motor; 32. Controller; 33. Second electric telescopic rod; 34. First gear; 35. First toothed belt; 36. Clamping plate; 37. Second gear; 38. Push plate; 39. Fixing block; 310. Second toothed belt; 311. Third gear; 312. Transmission rod; 313. Turntable; 314. Positioning rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] like Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a bidirectional positioning machining fixture for cylinder liners, including a base 1, a control box 11 fixedly connected to one end of the base 1, and a clamping assembly 2 provided on the upper side of the base 1. The clamping assembly 2 includes a first electric telescopic rod 21 fixedly connected to the upper side of the base 1, and a bracket 22 fixedly connected to the upper end of the first electric telescopic rod 21. First insertion rods 23 are fixedly connected to the lower sides of both ends of the bracket 22, and the lower ends of the first insertion rods 23 are inserted into a first sleeve 24. The lower end of the first sleeve 24 is fixedly connected to the base 1. Through the cooperation of the clamping assembly 2 and the adjusting assembly 3, the cylinder liner can be automatically reversed and clamped without the need for manual adjustment by the worker, thereby effectively reducing worker operation and reducing processing efficiency, and improving the convenience of operation.

[0029] like Figure 1 and Figure 4 As shown, a cylinder 25 is rotatably connected to the inner side of the bracket 22, and a clamping plate 26 is fixedly connected to one end of the cylinder 25. A rubber pad 27 is fixedly connected to the end of the clamping plate 26 away from the cylinder 25. The operation of the cylinder 25 pushes the clamping plate 26 and the rubber pad 27 close to the cylinder sleeve to clamp and fix them.

[0030] like Figure 4 As shown, one end of each of the two sets of clamping plates 26 is fixedly connected to a fixing frame 28, and the end of one set of fixing frames 28 away from the clamping plate 26 is fixedly connected to a second sleeve 29. The end of the second sleeve 29 away from the fixing frame 28 is internally inserted with a second insert rod 210, and the end of the second insert rod 210 away from the second sleeve 29 is fixedly connected to another set of fixing frames 28. The movement of the two fixing frames 28 drives the second sleeve 29 and the second insert rod 210 to engage and adjust.

[0031] like Figure 1 and Figure 4 As shown, an adjustment assembly 3 is provided on the outer side of the cylinder 25 near the control box 11. The adjustment assembly 3 includes a motor 31 located on the outer side of the cylinder 25 near the control box 11. A controller 32 is fixedly connected to the side of the motor 31 away from the cylinder 25. A second electric telescopic rod 33 is fixedly connected to the lower side of the motor 31. The lower end of the second electric telescopic rod 33 is fixedly connected to the base 1. The motor 31 can be operated by the controller 32 to provide power output. The height of the motor 31 can be adjusted by the operation of the second electric telescopic rod 33.

[0032] like Figure 2 and Figure 4As shown, the output shaft of motor 31 is fixedly connected to a first gear 34, and the end of the first gear 34 away from motor 31 is fixedly connected to cylinder 25. The outer gear of the first gear 34 meshes with a first toothed belt 35, and a clamping plate 36 is sleeved on the outer side of the middle end of the first toothed belt 35. The inner side of the end of the first toothed belt 35 away from the first gear 34 meshes with a second gear 37, and the two ends of the second gear 37 are rotatably connected to the base 1. One end of the clamping plate 36 is rotatably connected to a push plate 38, and the end of the push plate 38 away from the clamping plate 36 is rotatably connected to a fixing block 39. The end of the fixing block 39 near motor 31 is fixedly connected to motor 31. The first sleeve 24 drives the rubber pad 27 to rotate with the assistance of clamping plate 26 through gear meshing with cylinder 25.

[0033] like Figure 4 As shown, the outer gear of the second gear 37 away from the first toothed belt 35 is engaged with the second toothed belt 310, and the inner gear of the second toothed belt 310 away from the second gear 37 is engaged with the third gear 311. One side of the third gear 311 is rotatably connected to the base 1, and the other side of the third gear 311 is fixedly connected to the transmission rod 312. By using the second toothed belt 310 to drive the third gear 311 to rotate, the third gear 311 can drive the transmission rod 312 to rotate.

[0034] like Figure 4 As shown, the end of the transmission rod 312 away from the third gear 311 passes through the base 1 and is fixedly connected to the transmission rod 312. The end of the turntable 313 away from the transmission rod 312 is rotatably connected to the base 1. Positioning rods 314 are fixedly connected to both ends of the turntable 313. By rotating the turntable 313 and the positioning rods 314, the two sets of positioning rods 314 can be interchanged.

[0035] Working principle: When machining the cylinder liner, first, the end of the cylinder liner that matches the upper positioning rod 314 is sleeved on the outside of the positioning rod 314. Then, the control box 11 controls the start of the cylinders 25 on both sides. After the cylinders 25 start, the output shaft pushes the clamping plate 26 and the rubber pad 27 close to the cylinder liner to clamp and fix it. When the clamping plates 26 and the rubber pad 27 on both sides are close, they drive the fixing bracket 28 to move closer, so that the second insert rod 210 is inserted into the second sleeve 29. After the clamping plates 26 and the rubber pad 27 clamp the cylinder liner, one end of the cylinder liner can be machined. After the machining is completed, the cylinder liner needs to be... When adjusting the direction, the control box 11 first controls the operation of the first electric telescopic rod 21 and the second electric telescopic rod 33. After the first electric telescopic rod 21 and the second electric telescopic rod 33 extend, they drive the cylinder liner to move upward. After the first electric telescopic rod 21 operates, it pushes the bracket 22 upward with the assistance of the first insert rod 23 and the first sleeve 24. After the motor 31 moves upward, it drives the fixed block 39 to move upward. The fixed block 39 then pulls the push plate 38 to move. The vertical length of the first toothed belt 35 is adjusted by the movement of the push plate 38. When the cylinder liner pulls out the positioning rod 314, the control box 11 controls the operation of the first electric telescopic rod 21 and the second electric telescopic rod 33 to move upward. The controller 32 of the box 11 causes the motor 31 to run. After the motor 31 runs, the output shaft drives the first gear 34 to rotate. The rotation of the first gear 34 drives the cylinder 25 and the first toothed belt 35 to run. The rotation of the cylinder 25 drives the clamping plate 26 and the rubber pad 27 to rotate. The rotation of the clamping plate 26, through the fixing frame 28, the second sleeve 29 and the second insert rod 210, drives the cylinder 25, the clamping plate 26 and the rubber pad 27 at the other end to rotate. The rotation of the clamping plates 26 and the rubber pad 27 on both sides drives the cylinder sleeve to rotate and adjust. After the first toothed belt 35 runs, it drives the first gear 35 under the restriction of the clamping plate 36. The second gear 37 rotates, and after the second gear 37 rotates, it drives the third gear 311 to rotate through meshing with the second toothed belt 310. After the third gear 311 rotates, it drives the turntable 313 and the positioning rod 314 to rotate through the transmission rod 312, thereby replacing the positioning rod 314. After the replacement is completed, the motor 31 is turned off first, and then the first electric telescopic rod 21 and the second electric telescopic rod 33 are controlled to retract, so that the bracket 22 and the fixing block 39 return to their original positions, so that the flipped cylinder liner is inserted into the outside of the flipped positioning rod 314 for repositioning. Then the flipped cylinder liner can be processed again.

[0036] 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 bidirectional positioning machining fixture for a cylinder liner, comprising a base (1), characterized in that: The base (1) one end is fixedly connected with the control box (11), and the base (1) upper side is provided with the clamping assembly (2), the clamping assembly (2) includes the first electric telescopic rod (21) fixedly connected on the base (1) upper side, and the first electric telescopic rod (21) upper end is fixedly connected with the support (22), the support (22) both ends lower side is fixedly connected with the first plug rod (23), and the first plug rod (23) lower end is inserted in the first sleeve (24), and the first sleeve (24) lower end is fixedly connected on the base (1).

2. The bidirectional positioning machining fixture for cylinder liner according to claim 1, characterized in that: The support (22) inner side is rotatably connected with the air cylinder (25), and the air cylinder (25) one end is fixedly connected with the clamping plate (26), and the clamping plate (26) is fixedly connected with the rubber pad (27) away from the air cylinder (25) one end.

3. The bidirectional positioning machining fixture for cylinder liner according to claim 2, characterized in that: Two groups of the clamping plate (26) one end is fixedly connected with the fixed frame (28), and one group of fixed frame (28) is fixedly connected with the second sleeve (29) away from the clamping plate (26) one end, and the second sleeve (29) is inserted with the second plug rod (210) inside away from the second sleeve (29) one end, and the second plug rod (210) is fixedly connected on the other group of fixed frame (28) away from the second sleeve (29) one end.

4. The bidirectional positioning machining fixture for cylinder liner according to claim 2, characterized in that: The air cylinder (25) outer side is provided with the adjusting assembly (3) near the control box (11) one end, and the adjusting assembly (3) includes the motor (31) provided on the air cylinder (25) outer side near the control box (11) one end, the motor (31) is fixedly connected with the controller (32) away from the air cylinder (25) one side, and the motor (31) lower side is fixedly connected with the second electric telescopic rod (33), and the second electric telescopic rod (33) lower end is fixedly connected on the base (1).

5. The bidirectional positioning machining fixture for cylinder liner according to claim 4, characterized in that: The motor (31) output shaft is fixedly connected with the first gear (34), and the first gear (34) is fixedly connected on the air cylinder (25) away from the motor (31) one end, the first gear (34) outer side gear is engaged with the first tooth belt (35), and the first tooth belt (35) middle end outer side is sleeved with the clamping plate (36), the first tooth belt (35) one end inside away from the first gear (34) is engaged with the second gear (37), and the second gear (37) both ends are rotatably connected on the base (1), the clamping plate (36) one end is rotatably connected with the push plate (38), and the push plate (38) is rotatably connected with the fixed block (39) away from the clamping plate (36) one end, and the fixed block (39) is fixedly connected on the motor (31) near the motor (31) one end.

6. The bidirectional positioning machining fixture for cylinder liner according to claim 5, characterized in that: The second gear (37) one end outside away from the first tooth belt (35) gear is engaged with the second tooth belt (310), and the second tooth belt (310) one end inside gear is engaged with the third gear (311) away from the second gear (37), and the third gear (311) one side is rotatably connected on the base (1), and the third gear (311) the other side is fixedly connected with the transmission rod (312).

7. The bidirectional positioning machining fixture for cylinder liner according to claim 6, characterized in that: The transmission rod (312) is fixedly connected with the transmission rod (312) at one end away from the third gear (311) penetrating through the base (1), and the rotating disc (313) is rotatably connected on the base (1) at one end away from the transmission rod (312), and the rotating disc (313) is fixedly connected with the positioning rod (314) at both ends.

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