Press-fitting equipment capable of quickly correcting bushing in position

Abstract

The invention discloses press-fitting equipment capable of quickly correcting a lining in place. The press-fitting equipment comprises a group of adjusting supporting plates located under a press-fitting head and a push-pull mechanism for adjusting the adjusting supporting plates in real time. According to the device, the positions between the steel balls located on the adjusting supporting plates and the curved-surface supporting blocks are adjusted through folding of the adjusting supporting plates, so that the acting point positions of the steel balls and the acting point positions of the surfaces of the curved-surface supporting blocks are located on the same straight line through inward folding of the adjusting supporting plates; the width of the curved surface section of the curved surface supporting block is larger than the radius of the section of the steel ball, so that straight lines with different distance sizes from the center line of the middle supporting pipe can be formed, and the in-place use requirements of bushing workpiece tools with different inner diameter sizes can be met; the spherical surfaces of the steel balls make contact with the inner ring wall of the lining workpiece, the lining workpiece can be supported, columnar in-place spaces of the same specification can be formed, and the accuracy of rapid in-place of the lining workpiece is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of press-fitting equipment, specifically a press-fitting device that can quickly align and position bushings. Background Technology

[0002] We have found the following defects in existing press-fitting equipment during bushing press-fitting: 1. The bushing workpiece is not accurately positioned, leading to potential structural damage during initial press-fitting; 2. Before the press-fitting cylinder extends and contacts the top end face of the bushing, continuous worker assistance is required for positioning, making it impossible to guarantee that the bushing workpiece maintains a precise position after release before press-fitting. Therefore, we propose a press-fitting device that can quickly align and position bushings to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide a press-fitting device that can quickly align and position the bushing in order to solve the above-mentioned problems.

[0004] The present invention achieves the above-mentioned objective through the following technical solution: a press-fitting device for quickly aligning and positioning bushings, comprising a set of adjusting support plates located directly below the press-fitting head and a push-pull mechanism for real-time adjustment of the adjusting support plates. Each of the adjusting support plates in the set is equipped with a bearing at one end, and multiple bearings are interconnected by the same ring. The back center of each of the adjusting support plates in the set is connected to the surface around the top of the central support tube by a steel strip, and steel balls and curved support blocks are distributed on the outer surface of the adjusting support plates. The action points of the steel balls and the action points of the curved support blocks are aligned on the same straight line by the adjusting support plates. A set of push-pull rods located in the middle of the push-pull mechanism are located inside the central support tube, and the top of each push-pull rod is connected to the bottom end of the steel strip by a steel wire.

[0005] In a further technical solution, the push-pull mechanism also includes a first cylinder, a second cylinder, and a hole block. The cylinder ends of the two first cylinders are symmetrically installed at the bottom of the tooling plate, and the output ends of the first cylinders are connected to the hole block through a connecting plate. A set of second cylinders are distributed and installed at the bottom of the hole block, and the output ends of the second cylinders are connected to the bottom ends of the corresponding push-pull rods.

[0006] In a further technical solution, the central opening of the hole block is fixedly connected to the bottom end of the central support tube, and slide blocks are installed on both sides of the hole block. The two slide blocks are slidably installed on two guide rails, and the top of the guide rails is fixedly connected to the bottom of the tooling plate.

[0007] In a further technical solution, the tooling plate is installed on the top of the machine tool, and an L-shaped bracket is installed at the rear end of the top of the machine tool. A pressing cylinder is installed on the top of the L-shaped bracket, and the output end of the pressing cylinder is connected to the pressing head.

[0008] In a further technical solution, the surface of the adjusting support plate is a conical surface, and a connecting hole is provided on the surface of the adjusting support plate, and the steel ball rolls and connects with the inside of the connecting hole.

[0009] In a further technical solution, the point of action of the steel ball and the point of action of the curved support block surface are both in contact with the inner ring wall of the bushing workpiece, and the cross-section of the curved support block is elliptical.

[0010] In a further technical solution, a set of circular holes are distributed at the top of the annular surface of the central support tube, and a steel wire is inserted into the interior of each circular hole.

[0011] In a further technical solution, the ring is interconnected with the top of the central support tube via distributed connecting posts.

[0012] The beneficial effects of this invention are as follows: By adjusting the position of the steel ball and the curved support block by retracting a set of adjustable support plates, the action point of the steel ball and the action point of the surface of the curved support block are aligned on the same straight line through the inward retraction of the adjustable support plates. Combined with the fact that the width of the curved cross-section of the curved support block is greater than the cross-sectional radius of the steel ball, straight lines with different distances from the center line of the central support tube can be formed to meet the positioning requirements of bushing workpieces with different inner diameters. At the same time, the curved support block supports and contacts the circular edge of the bottom end of the bushing workpiece, and the spherical surface of the steel ball contacts the inner ring wall of the bushing workpiece. This not only supports the bushing workpiece but also forms a columnar positioning space of the same specification, ensuring the accuracy of rapid positioning of the bushing workpiece. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the entire invention; Figure 3 for Figure 2 Enlarged view of the connection structure at point A in the middle; Figure 4 This is a schematic diagram of the adjustable support plate connection structure of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the adjustable support plate connection structure of the present invention. Figure 2 ; Figure 6 This is a before-and-after comparison diagram of the adjusting support plate being installed into the bushing workpiece according to the present invention.

[0016] In the diagram: 1. Machine base; 2. L-shaped bracket; 3. Pressing cylinder; 310. Pressing head; 4. Tooling plate; 5. Adjusting support plate; 510. Connecting hole; 511. Steel ball; 520. Curved support block; 6. Central support tube; 610. Round hole; 620. Circular ring; 621. Bearing; 7. Hole block; 8. Slide seat; 9. First cylinder; 10. Guide rail; 11. Push-pull rod; 12. Second cylinder; 13. Steel wire; 14. Steel bar; 15. Bushing workpiece. Detailed Implementation

[0017] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Please see Figure 1-6 As shown, a press-fitting device for quickly aligning and positioning bushings includes a set of adjusting support plates 5 located directly below the press-fitting head 310 and a push-pull mechanism for real-time adjustment of the adjusting support plates 5. Each of the adjusting support plates 5 in the set is equipped with a bearing 621 at one end, and multiple bearings 621 are interconnected by the same ring 620. The back center of each of the adjusting support plates 5 in the set is connected to the surface around the top of the central support tube 6 by a steel strip 14. Steel balls 511 and curved support blocks 520 are distributed on the outer surface of the adjusting support plate 5. The action points of the steel balls 511 and the action points of the curved support blocks 520 are aligned on the same straight line by the adjusting support plates 5. A set of push-pull rods 11 located in the middle of the push-pull mechanism are located inside the central support tube 6, and the top of each push-pull rod 11 is connected to the bottom of the steel strip 14 by a steel wire 13. The push-pull mechanism also includes a first cylinder 9, a second cylinder 12 and a hole block 7. The cylinder ends of the two first cylinders 9 are symmetrically installed at the bottom of the tooling plate 4, and the output end of the first cylinder 9 is connected to the hole block 7 through a connecting plate. A set of second cylinders 12 are distributed and installed at the bottom of the hole block 7, and the output end of the second cylinder 12 is connected to the bottom end of the corresponding push-pull rod 11. The surface of the adjusting support plate 5 is conical, and a connecting hole 510 is provided on the surface of the adjusting support plate 5. The steel ball 511 rolls and connects with the connecting hole 510. The action point of the steel ball 511 and the action point of the curved support block 520 are in contact with the inner ring wall of the bushing workpiece 15, and the cross-section of the curved support block 520 is elliptical.

[0021] The central opening of the hole block 7 is fixedly connected to the bottom end of the central support tube 6, and slide blocks 8 are installed on both sides of the hole block 7. The two slide blocks 8 are slidably installed on the two guide rails 10 respectively, and the top of the guide rails 10 is fixedly connected to the bottom of the tooling plate 4. The stability of the hole block 7 connected by the slide blocks 8 in moving up and down is ensured by the two guide rails 10.

[0022] The tooling plate 4 is installed on the top of the machine base 1, and an L-shaped bracket 2 is installed at the rear end of the top of the machine base 1. A pressing cylinder 3 is installed on the top of the L-shaped bracket 2. The output end of the pressing cylinder 3 is connected to the pressing head 310. The pressing head 310 is pushed down by the pressing cylinder 3 so that the pressing head 310 contacts and acts on the top end face of the bushing workpiece 15 that has been aligned and positioned until the pressing is completed.

[0023] Furthermore, a set of circular holes 610 are distributed at the top of the annular surface of the central support tube 6, and a portion of steel wire 13 is inserted into each circular hole 610.

[0024] Furthermore, the ring 620 is interconnected with the top end of the central support tube 6 via distributed connecting posts.

[0025] Working principle: The workpiece is placed in the tooling plate 4 with the hole to be pressed on it. The first cylinder 9 is operated to retract, causing a set of adjusting support plates 5, connected by the connecting plate, hole block 7, central support tube 6, ring 620 and bearing 621, to pass through the hole to be pressed on. The set of adjusting support plates 5 is then opened again. At this time, the operator places the round end of the bottom of the bushing workpiece 15 onto the set of adjusting support plates 5. The point of action of the bushing workpiece 15 on the steel ball 511 and the point of action of the curved support block 520 are aligned. By adjusting the support plate 5 to retract inward and be aligned on the same straight line, and by adjusting the extension and retraction of the support plate 5, the bushing workpiece 15 can be quickly aligned and positioned, and the bottom end of the bushing workpiece 15 is placed at the opening of the hole to be pressed. After the bushing workpiece 15 is aligned and positioned, the pressing cylinder 3 extends and moves the pressing head 310 at its output end downward to contact the top end face of the bushing workpiece 15 and move downward together until the bushing workpiece 15 is pressed into the hole to be pressed. The specific adjustment and operation steps of one set of adjusting support plates 5 are as follows: Combination Figure 2 , Figure 3 and Figure 6 As shown, when a set of second cylinders 12 are in the extended state, each second cylinder 12 pushes the push-pull rod 11 connected to it downwards, causing the steel wire 13 connected to the top of the push-pull rod 11 to be pulled into the middle support tube 6. At the same time, the steel bar 14 connected to the steel wire 13 retracts inwards, thereby driving the adjusting support plate 5 connected to it to retract inwards. This causes the action point of the steel ball 511 and the action point on the surface of the curved support block 520 to be aligned on the same straight line through the inward retraction of the adjusting support plate 5. The two action points, which are distributed vertically, are completely matched with the inner diameter of the bushing workpiece 15, so that the bushing workpiece 15 can quickly fall and be aligned in place. When a set of second cylinders 12 are in the retracted state, each second cylinder 12 pushes the push-pull rod 11 connected to it upwards, causing the steel wire 13 connected to the top of the push-pull rod 11 to extend out of the middle support tube 6 through the round hole 610 under the action of the elastically reset steel bar 14, thereby completing the outward expansion of a set of adjusting support plates 5. In summary, the advantages of this invention are as follows: by using a set of adjusting support plates 5 to adjust the position between the steel ball 511 and the curved support block 520 located on them, the action point of the steel ball 511 and the action point on the surface of the curved support block 520 are aligned on the same straight line by the adjusting support plates 5. In addition, the width of the curved cross section of the curved support block 520 is greater than the cross section radius of the steel ball 511, which can form straight lines with different distances from the center line of the central support tube 6, so as to meet the tooling needs of bushing workpieces 15 with different inner diameters. At the same time, the curved support block 520 supports and contacts the round edge of the bottom end of the bushing workpiece 15, and the spherical surface of the steel ball 511 contacts the inner ring wall of the bushing workpiece 15. This can both support the bushing workpiece 15 and form a columnar positioning space of the same specification, ensuring the accuracy of the rapid positioning of the bushing workpiece 15.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A press fitting apparatus capable of quickly aligning and positioning a bushing, characterized by: Including a set of adjusting support plates (5) located directly below the pressing head (310) and a push-pull mechanism for real-time adjustment of the adjusting support plates (5), one end of each of the adjusting support plates (5) in the set is provided with a bearing (621), and a plurality of bearings (621) are connected to each other through a same circular ring (620), the middle part of the back surface of each of the adjusting support plates (5) in the set is connected to the surrounding surface of the top end of the middle support pipe (6) through a steel bar (14), and a plurality of steel balls (511) and curved supporting blocks (520) are arranged on the outer surface of the adjusting support plates (5), the action point of the steel ball (511) and the action point of the surface of the curved supporting block (520) are located on a same straight line through the inward folding of the adjusting support plates (5), and a plurality of push-pull rods (11) located in the middle part of the push-pull mechanism are located inside the middle support pipe (6), and the top end of each of the push-pull rods (11) is connected to the bottom end of the steel bar (14) through a steel wire (13).

2. A press fitting apparatus for rapid alignment of a bushing in place according to claim 1, characterized in that: The push-pull mechanism further comprises a first cylinder (9), a second cylinder (12) and a hole block (7), the cylinder body end portions of two first cylinders (9) are symmetrically mounted on the bottom of the tool position plate (4), the output end of the first cylinder (9) is connected to the hole block (7) through a connecting plate, a plurality of second cylinders (12) are arranged on the bottom of the hole block (7), and the output end of the second cylinder (12) is connected to the bottom end of the corresponding push-pull rod (11).

3. A press fitting apparatus for rapid alignment of a bushing in place according to claim 2, characterized in that: The middle hole of the hole block (7) is fixedly connected to the bottom end of the middle support pipe (6), and slide seats (8) are arranged on both sides of the hole block (7), two slide seats (8) are respectively slidably arranged on two guide rails (10), and the top end of the guide rail (10) is fixedly connected to the bottom of the tool position plate (4).

4. The press fitting apparatus capable of quickly aligning and positioning the bushing according to claim 2, characterized in that: The tool position plate (4) is mounted on the top of the machine table (1), an L-shaped support (2) is mounted on the top rear end of the machine table (1), a pressing oil cylinder (3) is mounted on the top of the L-shaped support (2), and the output end of the pressing oil cylinder (3) is connected to the pressing head (310).

5. The press fitting apparatus of claim 1, wherein: The surface of the adjusting support plate (5) is a conical surface, and the surface of the adjusting support plate (5) is provided with a connecting hole (510), and the inside of the connecting hole (510) is in rolling connection with the steel ball (511).

6. The press fitting apparatus for quickly aligning and seating a bushing of claim 1, wherein: The action point of the steel ball (511) and the action point of the surface of the curved supporting block (520) are in contact with the inner ring wall of the bushing workpiece (15), and the cross section of the curved supporting block (520) is in the shape of an ellipse.

7. The press fitting apparatus of claim 1, wherein: A plurality of circular holes (610) are arranged on the top of the annular surface of the middle support pipe (6), and a steel wire (13) is arranged in each of the circular holes (610).

8. The press fitting apparatus of claim 1, wherein: The circular ring (620) is connected to the top of the middle support pipe (6) through a plurality of connecting columns.

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