Fixture suitable for cylinder machining in bottle-making machine

Abstract

The utility model discloses a clamp suitable for cylinder machining in a bottle-making machine, and belongs to the technical field of machining clamps. Supporting seats, a three-jaw chuck and a positioning structure are arranged on the base, the multiple supporting seats are arranged around the three-jaw chuck, clamping hydraulic cylinders are arranged at the upper ends of the supporting seats, clamping arms are arranged at the output ends of the clamping hydraulic cylinders, and the arrangement direction of the clamping arms is parallel to the radial direction of the three-jaw chuck. The positioning structures comprise the first positioning structures and the second positioning structures, the first positioning structures are arranged on the upper portion of the supporting base, the clamping arms penetrate through the first positioning structures, a containing space is formed among the multiple first positioning structures, and the second positioning structures are arranged on the supporting base and extend into the containing space. The air cylinder is placed in the placing space, the air cylinder is preliminarily positioned, the position of the air cylinder is finally determined through the second positioning structure, the upper end and the lower end of the air cylinder are clamped through the three-jaw chuck and the clamping arm, the machining precision is guaranteed, and the structure is simple.

Description

Technical Field

[0001] A fixture suitable for cylinder machining in bottle making machines belongs to the field of machining fixture technology. Background Technology

[0002] Appendix Figure 1 The image shows a cylinder 17 for a bottle-making machine. The cylinder 17 includes a column 18 and a boss 19 disposed at the end of the column 18. The column 18 is hollow inside. An arc-shaped first protrusion 20 and a rectangular second protrusion 21 are provided on the outer side of the column 18 along the axis. A reinforcing rib is provided between the boss 19 and the column 18. During the machining process, the cylinder 17 is fixed on a horizontal machining center by a fixture, and then the milling of the plane, the hole and the reinforcing rib are performed on the cylinder 17.

[0003] Currently, before machining, the cylinder 17 is mainly clamped and fixed using a three-jaw chuck in a machining center, and its position is manually adjusted. However, due to the large weight of this structure, not only is a lot of manpower required, but it is also difficult to achieve accurate adjustment. Furthermore, fixing it solely with a three-jaw chuck makes it easy for deformation to occur when machining the reinforcing ribs. Therefore, a fixture is needed to effectively position and fix the cylinder 17. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a fixture suitable for cylinder processing in bottle making machines. The fixture is provided with a positioning structure and a clamping arm, which can effectively position the cylinder.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The fixture applicable to cylinder processing in a bottle making machine includes a base, on which a support seat, a three-jaw chuck and a positioning structure are provided. Multiple support seats are arranged around the three-jaw chuck. A clamping hydraulic cylinder is provided at the upper end of the support seat. A clamping arm is provided at the output end of the clamping hydraulic cylinder. The clamping arm is arranged in a direction parallel to the radial direction of the three-jaw chuck. The positioning structure includes a first positioning structure and a second positioning structure. The first positioning structure is arranged on the upper part of the support seat. The clamping arm passes through the first positioning structure and a placement space is formed between the multiple first positioning structures. The second positioning structure is arranged on a support seat. The second positioning structure extends into the placement space and is abutted on the side of the first protrusion.

[0006] Preferably, the first positioning structure includes a connecting part and an action part. One end of the connecting part is connected to the support base, and the other end is connected to the action part. The clamping hydraulic cylinder is disposed between the action part and the support base. The action part is provided with an action part groove for the clamping arm to pass through.

[0007] Preferably, the second positioning structure includes a positioning arm and a positioning column. The positioning arm is horizontally disposed on the side of the support base, and the positioning column is disposed at the suspended end of the positioning arm, with the positioning column being perpendicular to the clamping arm.

[0008] Preferably, the positioning post and the positioning arm are connected by threads, and the positioning post is provided with a positioning nut.

[0009] Preferably, the end of the positioning post near the clamping arm has an arc-shaped contact portion.

[0010] Preferably, the three-jaw chuck includes a fixed plate, a locking block, a lifting and locking structure, and a lifting hydraulic cylinder. The fixed plate is mounted on the base. The upper ends of the three lifting and locking structures pass through the fixed plate and are connected to the locking block, while the lower ends are connected to the lifting hydraulic cylinder mounted inside the fixed plate. The locking block has a locking groove on the side near the center of the fixed plate.

[0011] Preferably, the lifting and locking structure includes a support column and a lifting block. The lower end of the fixed plate is recessed upward to form an installation groove. The lifting block is set in the installation groove, and the lower end of the lifting block is connected to the lifting hydraulic cylinder. Three guide holes are provided circumferentially between the installation groove and the upper end of the fixed plate. The distance between the upper end of the guide hole and the center of the circle is greater than the distance between the lower end and the center of the circle. The support column is set in the guide holes, and the lower end of the support column is connected to the lifting block.

[0012] Preferably, the fixed plate is provided with positioning blocks, and three positioning blocks are arranged at intervals along the circumference of the fixed plate, with the positioning blocks located on the side of the card block closest to the center of the fixed plate.

[0013] Preferably, the base is equipped with multiple sequence valves, which are used to control the lifting hydraulic cylinder and the clamping hydraulic cylinder.

[0014] Preferably, the base and support are provided with hydraulic oil circuits for supplying oil to the clamping hydraulic cylinder.

[0015] Compared with existing technologies, the beneficial effects of this technical solution are:

[0016] This invention places the cylinder in the placement space for initial positioning, then rotates the cylinder to make the second positioning structure contact the first protrusion of the cylinder, finally determining the position of the cylinder. The upper and lower ends of the cylinder are clamped by a three-jaw chuck and clamping arm, which can ensure processing accuracy and has a simple structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the cylinder of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of a clamping cylinder for cylinder processing in a bottle-making machine according to the present invention.

[0019] Figure 3This is a schematic diagram of the structure of a fixture for cylinder processing in a bottle-making machine according to the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of a fixture for cylinder processing in a bottle-making machine from another angle.

[0021] Figure 5 This is a top view of the present invention.

[0022] Figure 6 for Figure 5 Sectional view of AA.

[0023] The components include: 1. Base; 2. Fixing plate 201; mounting groove 202; guide hole; 3. Locking block 301; locking groove; 4. Positioning block; 5. Clamping hydraulic cylinder; 6. Clamping arm; 7. Connecting part; 8. Acting part 801; Acting part groove; 9. Positioning arm; 10. Positioning column 1001; Contact part; 11. First support seat; 12. Second support seat; 13. Third support seat; 14. Fourth support seat; 15. Sequence valve; 16. Lifting ring; 17. Cylinder; 18. Column; 19. Boss; 20. First protrusion; 21. Second protrusion; 22. Support column 2201; Support column insertion groove; 23. Reinforcing rib; 24. Lifting block 2401; Lifting block insertion groove; 25. Lifting hydraulic cylinder. Detailed Implementation

[0024] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-6 The present invention will be further described below.

[0025] Reference Figure 1 The cylinder 17 includes a column 18, a boss 19, a first protrusion 20 and a second protrusion 21. The rectangular boss 19 is located at the end of the cylindrical column 18. The first protrusion 20 is arc-shaped and the second protrusion 21 is rectangular. The two protrusions are parallel to the axis of the column 18 and are located on the outer wall of the column 18. The inside of the column 18 and the boss 19 is hollow.

[0026] Reference Figure 2The clamping fixture for cylinder 17 in a bottle-making machine includes a base 1. The base 1 has four support seats, a three-jaw chuck, and a positioning structure. The three-jaw chuck and the support seats are set on the base 1. The first support seat 11, the second support seat 12, the third support seat 13, and the fourth support seat 14 are arranged around the three-jaw chuck. The first support seat 11 and the third support seat 13 are arranged opposite each other, and the second support seat 12 and the fourth support seat 14 are arranged opposite each other. The second support seat 12, the third support seat 13, and the fourth support seat 14 have the same width and the same height. The side wall of the third support seat 13 is provided with a clearance groove. The height of the first support seat 11 is the same as the height of the second support seat 12, and the width is greater than the width of the second support seat 12.

[0027] Reference Figure 3 The upper end of the support base is equipped with a clamping structure to clamp the upper end of the column 18. Taking the first support base 11 as an example, the other three support bases have the same clamping structure as the first support base 11. The first support base 11 is convex in shape, with the side closest to the three-jaw chuck being the inner side and the opposite side being the outer side. A clamping hydraulic cylinder 5 is provided at the center of the upper end of the first support base 11. The clamping hydraulic cylinder 5 is connected to the hydraulic oil circuit inside the first support base 11 and the base 1. The output end of the clamping hydraulic cylinder 5 is equipped with a clamping arm 6. The clamping arm 6 is perpendicular to the inner wall of the first support base 11, so the action direction of the four clamping arms 6 is all towards the center of the three-jaw chuck. The clamping arm 6 is cylindrical, and its end rests on the outer wall of the column 18, thereby fixing the upper end of the column 18.

[0028] The first positioning structure includes a connecting part 7 and an actuating part 8. The connecting part 7 is horizontally disposed on one side of the clamping arm 6. One end of the connecting part 7 is connected to the support seat, and the other end is connected to the actuating part 8. The connecting parts 7 on the first support seat 11 and the third support seat 13 are disposed beside the clamping arm 6, respectively on the left and right sides of the clamping arm 6, and are arranged opposite to each other. The connecting parts 7 on the second support seat 12 and the fourth support seat 14 are both disposed on the lower side of the clamping arm 6. The actuating part 8 is perpendicular to the connecting part 7 and disposed at the end of the connecting part 7. The actuating part 8 and the connecting part 7 form an L-shape. The actuating part 8 is spaced apart from the inner wall of the support seat. The clamping hydraulic cylinder 5 and the clamping arm 6 are disposed between the actuating part 8 and the support seat. The actuating part 8 is provided with an actuating part groove 801 for the clamping arm 6 to pass through. The clamping hydraulic cylinder 5 drives the clamping arm 6 to pass through the actuating part groove 801 and press against the column 18.

[0029] The four working parts 8 and the three-jaw chuck form a placement space, and the cylinder 17 is placed in the placement space for initial positioning. The second positioning structure includes a positioning arm 9 and a positioning post 10. The positioning arm 9 is horizontally arranged on the side of the first support base 11 and is located on the side away from the connecting part 7. The positioning post 10 is located at the suspended end of the positioning arm 9 and is perpendicular to the positioning arm 9. The working end of the positioning post 10 faces the clamping arm 6 and is an arc-shaped contact part 1001. After the cylinder 17 is placed in the placement space, the cylinder 17 is rotated so that the contact part 1001 matches the arc-shaped side of the first protrusion 20, thereby performing a second precise positioning of the cylinder 17.

[0030] The positioning arm 9 is provided with a threaded hole. The positioning pin 10 passes through the threaded hole and is positioned by the positioning nut. The length of the positioning pin 10 exposed on one side of the contact part 1001 can be adjusted by rotation.

[0031] Reference Figures 4-6 The three-jaw chuck of this utility model includes a fixed plate 2, a chuck block 3, a support column 22, a lifting block 24, and a lifting hydraulic cylinder 25. The fixed plate 2 is mounted on a base 1, and the lower end of the fixed plate 2 is recessed upward to form a mounting groove 201. The lifting block 24 is disposed in the mounting groove 201, and the lower end of the lifting block 24 is connected to the lifting hydraulic cylinder 25. Three guide holes 202 are provided circumferentially between the mounting groove 201 and the upper end of the fixed plate 2. The distance between the upper end of the guide hole 202 and the center of the fixed plate 2 is greater than the distance between the lower end and the center. The support column 22 is disposed in the guide holes 202, and the lower end of the support column 22 is connected to the lifting block 24.

[0032] The lifting block 24 is a two-layer disc with a lifting block insertion groove 2401 between the two discs. The lower end of the support column 22 is provided with a support column insertion groove 2201. The upper disc of the lifting block 24 is inserted into the support column insertion groove 2201. The part between the support column insertion groove 2201 and the bottom surface of the support column 22 is inserted into the lifting block insertion groove 2401, and the two mesh with each other.

[0033] Three locking blocks 3 are inclinedly set on the upper end of the support column 22. The height of the side of the locking block 3 near the center of the fixed plate 2 is higher than that of the side away from the center of the fixed plate 2. The side near the center of the fixed plate 2 is provided with a locking groove 301. When the lifting hydraulic cylinder 25 drives the support column 22 to descend along the guide through hole 202, it indirectly drives the locking block 3 to clamp the lower end of the column 18. The locking groove 301 matches the outer wall of the column 18 and cooperates with the clamping arm 6 to accurately fix the cylinder 17.

[0034] The upper side of the fixed plate 2 is provided with positioning blocks 4. Three convex-shaped positioning blocks 4 are set on the side of the clamping block 3 near the center of the fixed plate 2 and are evenly arranged along the circumference. When the cylinder 17 is placed in the placement space, the lower end face of the cylinder 17 contacts the highest protrusion of the positioning block 4 to form support for it, so that the clamping block 3 and the clamping arm 6 are clamped on the lower end and the upper end of the column 18 respectively. The height of the boss 19 exceeds the upper end of the support base, which can process the upper end face of the cylinder 17 and the reinforcing rib 23.

[0035] The base 1 of this utility model is provided with two sequence valves 15. The sequence valves 15 are used to control the working sequence of the support column 22 and the clamping hydraulic cylinder 5, thereby controlling the working sequence of the clamping block 3 and the clamping arm 6, and completing the fixation of the cylinder 17.

[0036] The base 1 is equipped with lifting rings 16 at its four corners, which makes it easy to suspend the base 1 on the machining center.

[0037] Work process:

[0038] The cylinder 17 is placed in the placement space formed by the actuating part 8 and the positioning block 4 to complete the initial positioning. The cylinder 17 is rotated so that the contact part 1001 of the positioning column 10 matches the side of the first protrusion 20 to complete the precise positioning. Under the control of the sequence valve 15, the clamping arm 6 and the locking block 3 clamp the upper and lower ends of the column 18 in sequence, thereby completing the fixation of the cylinder 17.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A fixture suitable for cylinder processing in a bottle-making machine, comprising a base (1), characterized in that: The base (1) is provided with a support seat, a three-jaw chuck and a positioning structure. Multiple support seats are arranged around the three-jaw chuck. The upper end of the support seat is provided with a clamping hydraulic cylinder (5). The output end of the clamping hydraulic cylinder (5) is provided with a clamping arm (6). The clamping arm (6) is arranged in a direction parallel to the radial direction of the three-jaw chuck. The positioning structure includes a first positioning structure and a second positioning structure. The first positioning structure is arranged on the upper part of the support seat. The clamping arm (6) passes through the first positioning structure and forms a placement space between multiple first positioning structures. The second positioning structure is arranged on a support seat. The second positioning structure extends into the placement space and is abutted on the side of the first protrusion (20).

2. The fixture for cylinder processing in a bottle-making machine according to claim 1, characterized in that: The first positioning structure includes a connecting part (7) and an action part (8). One end of the connecting part (7) is connected to the support seat, and the other end is connected to the action part (8). The clamping hydraulic cylinder (5) is located between the action part (8) and the support seat. The action part (8) is provided with an action part groove (801) for the clamping arm (6) to pass through.

3. A fixture for cylinder processing in a bottle-making machine according to claim 1, characterized in that: The second positioning structure includes a positioning arm (9) and a positioning column (10). The positioning arm (9) is horizontally positioned on the side of the support base, and the positioning column (10) is positioned at the suspended end of the positioning arm (9) and is perpendicular to the clamping arm (6).

4. A fixture for cylinder processing in a bottle-making machine according to claim 3, characterized in that: The positioning post (10) and the positioning arm (9) are connected by threads, and the positioning post (10) is provided with a positioning nut.

5. A fixture for cylinder processing in a bottle-making machine according to claim 3, characterized in that: The positioning post (10) has an arc-shaped contact part (1001) at one end near the clamping arm (6).

6. A fixture for cylinder processing in a bottle-making machine according to claim 1, characterized in that: The three-jaw chuck includes a fixed plate (2), a locking block (3), a lifting locking structure and a lifting hydraulic cylinder (25). The fixed plate (2) is set on the base (1). The upper ends of the three lifting locking structures pass through the fixed plate (2) and are connected to the locking block. The lower ends are connected to the lifting hydraulic cylinder (25) set in the fixed plate (2). The locking block (3) has a locking groove (301) on the side near the center of the fixed plate (2).

7. A fixture for cylinder processing in a bottle-making machine according to claim 6, characterized in that: The lifting and locking structure includes a support column (22) and a lifting block (24). The lower end of the fixed plate (2) is recessed upward to form an installation groove (201). The lifting block (24) is set in the installation groove (201). The lower end of the lifting block (24) is connected to the lifting hydraulic cylinder (25). Three guide holes (202) are provided circumferentially between the installation groove (201) and the upper end of the fixed plate (2). The distance between the upper end of the guide hole (202) and the center of the circle is greater than the distance between the lower end and the center of the circle. The support column (22) is set in the guide hole (202). The lower end of the support column (22) is connected to the lifting block (24).

8. A fixture for cylinder processing in a bottle-making machine according to claim 6, characterized in that: The fixed plate (2) is provided with positioning blocks (4). Three positioning blocks (4) are arranged at intervals along the circumference of the fixed plate (2), and the positioning blocks (4) are located on the side of the card block (3) close to the center of the fixed plate (2).

9. A fixture for cylinder processing in a bottle-making machine according to claim 6, characterized in that: The base (1) is equipped with multiple sequence valves (15), which are connected to control the lifting hydraulic cylinder (25) and the clamping hydraulic cylinder (5).

10. A fixture for cylinder processing in a bottle-making machine according to claim 1, characterized in that: The base (1) and the support seat are equipped with hydraulic oil circuits for supplying oil to the clamping hydraulic cylinder (5).

Images