Connecting rod bushing press-fitting machine

Abstract

The invention discloses a connecting rod bushing press-fitting machine which comprises a bottom supporting block, a folding and unfolding strip, a hollow block, a transmission rod, a first motor, a long sleeve, an air cylinder, a cylinder, a round hole block, an oil cylinder, a second motor and a feeding disc. The device has the beneficial effects that the two bottom supporting blocks capable of being folded and unfolded synchronously and the round hole block form a clamping structure for the lining workpiece, the lining workpiece is placed and restored, press-fitting stress is more uniform, meanwhile, the oil cylinder is used for stretching to press the lining workpiece located at the clamping structure to the corresponding position of the connecting rod, and therefore the clamping effect is improved, and the service life of the connecting rod is prolonged. The press-fitting quality is high; the two material supporting pieces are installed at the hole openings in the bottoms of the discharging holes in an inverted-splayed shape, lining workpieces with different diameters can be placed and supported, meanwhile, the two bottom supporting blocks capable of being pushed, pulled, lifted and folded and unfolded are matched, the structural function of conveniently and efficiently taking and clamping the lining workpieces is achieved, the operation risk of manual installation and placement is reduced, and the working efficiency is improved. And the press-fitting efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connecting rod bushing pressing, and specifically to a connecting rod bushing press. Background Art

[0002] Connecting rod bushings play a crucial role in mechanical equipment. They can not only improve the lifespan and performance of machinery, but also simplify the structure and manufacturing process, and reduce maintenance costs. Therefore, selecting appropriate bushing materials and designing reasonable bushing structures are of great significance for ensuring the stable operation of mechanical equipment and extending its service life.

[0003] Currently, in the pressing structure part of the existing connecting rod bushing presses, the functions are single, and it is impossible to perform an integrated operation of picking up, clamping, and pressing the bushing workpiece. As a result, it is still necessary for skilled workers to manually align and place the bushing workpiece. The pressing operation is not precise enough, the force is uneven, the efficiency is low, and it is not conducive to improving the pressing quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a connecting rod bushing press to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions. A connecting rod bushing press includes a bottom support block, a retractable strip, a hollow block, a transmission rod, a first motor, a long sleeve, a cylinder, a cylinder barrel, a round hole block, an oil cylinder, a second motor, and a feeding disc. Two guide rods are symmetrically installed on both sides of the hollow block, and strip-shaped holes are opened in the middle of both sides of the hollow block. A perforation is opened in the part of the transmission rod located inside the hollow block. The two ends of the retractable strip are fixedly installed at the middle positions of the end faces of the two bottom support blocks respectively, and one side of the retractable strip passes through the strip-shaped hole and the perforation. The inner parts of the two guide holes at the end face of the bottom support block are slidably connected to the ends of the two guide rods on the same side respectively, and a spring is sleeved on each guide rod. The hollow block is rotatably connected to the transmission rod through a bearing, and one end of the transmission rod is connected to the first motor fixed inside the long sleeve. The corresponding part of the opening of the long sleeve is fixedly connected to the hollow block, and the top end face of the long sleeve is connected to the cylinder fixed inside the cylinder barrel. A round hole block is installed at the opening of the cylinder barrel, and the top end face of the cylinder barrel is connected to the output end of the oil cylinder. The inner wall of the hole structure in the middle of the round hole block is in sliding contact with the surface of the long sleeve. The two bottom support blocks and the round hole block form a clamping structure for the bushing workpiece. A plurality of feeding holes are annularly distributed on the feeding disc, and two supporting pieces are installed in an inverted V shape at the bottom opening of each feeding hole. The shaft end in the middle of the feeding disc is connected to the shaft end of the second motor.

[0006] Preferably, the outer end of the bottom supporting block contacts the circular ring surface at the bottom of the bushing workpiece, and the outer end of the bottom supporting block never extends beyond the annular surface of the bushing workpiece.

[0007] Preferably, the maximum extension radius of the outer end of the bottom supporting block is greater than the radius of the hole structure on the external connecting rod.

[0008] Preferably, the cylinder body part of the oil cylinder is fixedly installed at the top of one side of the carrier, and the bottom plate located at the bottom of the carrier is fixedly installed on the top of the enclosure table.

[0009] Preferably, a round hole is provided in the middle of the bottom plate, and the round hole, the feeding hole and the transmission rod are located on the same central axis.

[0010] Preferably, a motor mounting bracket is fixedly installed at the rear end of the bottom plate, and the corresponding parts of the motor mounting bracket and the second motor are fixedly connected.

[0011] Preferably, the hole length dimension of the guide hole is half of the length dimension of the guide rod.

[0012] The beneficial effects of the present invention are as follows: 1. A clamping structure for the bushing workpiece is formed by the two bottom supporting blocks that can be synchronously retracted and extended and the round hole block, and the bushing workpiece is placed and aligned properly, so that the force during press-fitting is more uniform. At the same time, the oil cylinder is extended to press-fit the bushing workpiece at the clamping structure to the corresponding part of the connecting rod, and the press-fitting quality is high. 2. The operating cylinder is in the extended or retracted state, so that the long sleeve and the hollow block connected thereto are in the descending or ascending state, which plays a role in adjusting the distance between the bottom supporting block and the round hole block. 3. Two supporting pieces are installed at the orifice at the bottom of the feeding hole in an inverted V shape, which can meet the placement and support of bushing workpieces with different diameters. At the same time, in cooperation with the two bottom supporting blocks that can be retracted and extended and can be pushed, pulled, lifted and lowered, the structure has the function of conveniently and efficiently clamping and unclamping the bushing workpiece, reducing the operation risk of manual loading and unloading, and further improving the press-fitting efficiency. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a three-dimensional view of the overall structure of the present invention; Figure 2 It is a three-dimensional view of a partial structure of the whole of the present invention; Figure 3Schematic diagram of the long sleeve connection structure of the present invention; Figure 4 is Figure 3 an enlarged view of the structure at position A in; Figure 5 Schematic diagram of the connection structure between the bottom support block and the hollow block of the present invention; Figure 6 Side view of the bottom support block structure of the present invention; Figure 7 Schematic diagram of the connection structure between the transmission rod and the expansion and contraction strip of the present invention; Figure 8 Schematic diagram of the clamping state of the bushing workpiece of the present invention; Figure 9 Schematic diagram of the removal state of the bushing workpiece of the present invention.

[0015] In the figure: 1, bottom support block; 110, guide hole; 2, expansion and contraction strip; 3, hollow block; 310, strip hole; 320, spring; 330, guide rod; 4, transmission rod; 410, perforation; 5, first motor; 6, long sleeve; 7, cylinder; 8, cylinder; 9, round hole block; 10, oil cylinder; 11, carrier; 12, loading disc; 1210, material discharge hole; 1211, material supporting piece; 13, second motor; 14, motor mounting frame; 15, bottom plate; 1510, round hole; 16, surrounding frame table; 17, bushing workpiece. Detailed implementation manners

[0016] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] Please refer to Figures 1-9As shown in the figure, a connecting rod bushing press includes a bottom support block 1, a retractable strip 2, a hollow block 3, a transmission rod 4, a first motor 5, a long sleeve 6, a cylinder 7, a cylinder 8, a round hole block 9, an oil cylinder 10, a second motor 13 and a loading disc 12. Two guide rods 330 are symmetrically installed on both sides of the hollow block 3, and strip holes 310 are opened in the middle of both sides of the hollow block 3. A perforation 410 is opened in a part of the transmission rod 4 located inside the hollow block 3. Both ends of the retractable strip 2 are fixedly installed at the middle positions of the end faces of the two bottom support blocks 1, and one side of the retractable strip 2 passes through the strip hole 310 and the perforation 410. The inner parts of the two guide holes 110 on the end face of the bottom support block 1 are respectively slidably connected to the ends of the two guide rods 330 on the same side, and a spring 320 is sleeved on each guide rod 330. The hollow block 3 is rotatably connected to the transmission rod 4 through a bearing, and one end of the transmission rod 4 is connected to the first motor 5 fixed inside the long sleeve 6. The outer end of the bottom support block 1 contacts the circular ring surface at the bottom of the bushing workpiece 17, and the outer end of the bottom support block 1 never exceeds the circular ring surface of the bushing workpiece 17. The maximum extension radius of the outer end of the bottom support block 1 is greater than the radius of the hole structure on the external connecting rod; As Figure 4 , Figure 5 and Figure 7 shown, when the first motor 5 drives the transmission rod 4 to rotate forward or backward, the part of the retractable strip 2 at the perforation 410 is in a winding or unwinding state, and combined with the spring 320 sleeved on the guide rod 330 slidably connected to the guide hole 110, it plays a role of pulling the bottom support block 1 connected to both ends of the retractable strip 2 inward or resetting it outward, and the effect is as Figure 8 and Figure 9 shown; The beneficial effect here: A clamping structure for the bushing workpiece 17 is formed by the two synchronously retractable bottom support blocks 1 and the round hole block 9, and the bushing workpiece 17 is placed correctly, so that the pressing force is more uniform. At the same time, the oil cylinder 10 extends to press the bushing workpiece 17 at the clamping structure to the corresponding part of the connecting rod, and the pressing quality is high.

[0020] The corresponding part of the mouth of the long sleeve 6 is fixedly connected to the hollow block 3, and the top end face of the long sleeve 6 is connected to the cylinder 7 fixed inside the cylinder 8. The mouth of the cylinder 8 is provided with a round hole block 9, and the top end face of the cylinder 8 is connected to the output end of the oil cylinder 10. The inner wall of the hole structure in the middle of the round hole block 9 is in sliding contact with the surface of the long sleeve 6; Combined with Figure 3 shown, when the cylinder 7 operates in an extended or contracted state, the long sleeve 6 and the hollow block 3 connected to it are in a descending or ascending state, which plays a role in adjusting the distance between the bottom support block 1 and the round hole block 9.

[0021] A plurality of material placing holes 1210 are annularly distributed on the feeding disc 12, and two supporting pieces 1211 are installed at the orifice of the bottom of each material placing hole 1210 in an inverted V shape. The shaft end in the middle of the feeding disc 12 is connected to the shaft end of the second motor 13. A circular hole 1510 is formed in the middle of the bottom plate 15, and the circular hole 1510, the material placing hole 1210 and the transmission rod 4 are located on the same central axis.

[0022] Combined with Figure 9 As shown, by installing two supporting pieces 1211 at the orifice of the bottom of the material placing hole 1210 in an inverted V shape, the placement and support of bushing workpieces 17 with different diameters can be satisfied; When the air cylinder 7 is in the extended state, the two bottom supporting blocks 1 connected to the bottom end of the long sleeve 6 and in the contracted state pass through the hole in the middle of the placed and supported bushing workpiece 17 and are located at the lower end. At this time, the two bottom supporting blocks 1 change from the contracted state to the outward-expanded state, and the air cylinder 7 becomes the contracted state, and the bushing workpiece 17 restricted and supported by the bottom supporting blocks 1 can pass through the material placing hole 1210 and the circular hole 1510 to approach and contact the circular hole block 9 until it is in the clamped and fixed state; When the bushing workpiece 17 is moved out of the material placing hole 1210, the second motor 13 drives the connected feeding disc 12 to rotate, so that the next material placing hole 1210 with the bushing workpiece 17 is placed directly below the circular hole 1510 for subsequent material taking; Beneficial effects here: By installing two supporting pieces 1211 at the orifice of the bottom of the material placing hole 1210 in an inverted V shape, the placement and support of bushing workpieces 17 with different diameters can be satisfied. At the same time, in cooperation with the two retractable bottom supporting blocks 1 that can be pushed, pulled, lifted, and lowered, it has the structural function of conveniently and efficiently picking and clamping the bushing workpiece 17, reducing the operation risk of manual loading and unloading, and further improving the pressing efficiency.

[0023] Furthermore, the cylinder part of the oil cylinder 10 is fixedly installed at the top on one side of the carrier 11, and the bottom plate 15 located at the bottom of the carrier 11 is fixedly installed at the top of the enclosure table 16.

[0024] Furthermore, a motor mounting frame 14 is fixedly installed at the rear end of the bottom plate 15, and the corresponding parts of the motor mounting frame 14 and the second motor 13 are fixedly connected.

[0025] Furthermore, the hole length dimension of the guide hole 110 is one-half of the length dimension of the guide rod 330.

[0026] Working principle: As Figure 4 、 Figure 5 And Figure 7As shown, when the first motor 5 drives the transmission rod 4 to rotate forward or backward, the expansion and contraction strip 2 at the perforation 410 is partially in a winding or unwinding state, and in combination with the spring 320 sleeved on the guide rod 330 slidably connected to the guide hole 110, it plays a role of pulling the bottom support block 1 connected to both ends of the expansion and contraction strip 2 inward or resetting it outward. The effect is as Figure 8 and Figure 9 shown; Combined with Figure 3 shown, when the operating cylinder 7 is in an extended or contracted state, the long sleeve 6 and the hollow block 3 connected thereto are in a descending or ascending state, playing a role in adjusting the distance between the bottom support block 1 and the round hole block 9; Combined with Figure 9 shown, two supporting pieces 1211 are installed at the orifice at the bottom of the feeding hole 1210 in an inverted V shape, which can meet the placement and support of bushing workpieces 17 with different diameters; When the cylinder 7 is in an extended state, the two bottom support blocks 1 connected to the bottom end of the long sleeve 6 and in a contracted state pass through the hole in the middle of the bushing workpiece 17 to be placed and supported and are located at the lower end. At this time, the two bottom support blocks 1 change from a contracted state to an outward-expanded state, and the cylinder 7 changes to a contracted state, which can make the bushing workpiece 17 restricted and supported by the bottom support blocks 1 pass through the feeding hole 1210 and the round hole 1510 and approach and contact the round hole block 9 until it is clamped and fixed; When the above-mentioned bushing workpiece 17 is moved out of the feeding hole 1210, the second motor 13 drives the connected feeding disc 12 to rotate, so that the next feeding hole 1210 with a bushing workpiece 17 is placed directly below the round hole 1510 for subsequent material taking.

[0027] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the same elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0028] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A connecting rod bushing press-fitting machine, characterized in that: It includes a bottom support block (1), a retractable strip (2), a hollow block (3), a transmission rod (4), a first motor (5), a long sleeve (6), a cylinder (7), a cylinder (8), a round hole block (9), an oil cylinder (10), a second motor (13) and a loading disc (12). On both sides of the hollow block (3), two guide rods (330) are symmetrically installed, and strip-shaped holes (310) are provided in the middle of both sides of the hollow block (3). A perforation (410) is provided in a part of the transmission rod (4) located inside the hollow block (3). Both ends of the retractable strip (2) are fixedly installed in the middle positions of the end faces of the two bottom support blocks (1), and one side of the retractable strip (2) passes through the strip-shaped hole (310) and the perforation (410). The inner parts of two guide holes (110) on the end face of the bottom support block (1) are respectively slidably connected to the ends of the two guide rods (330) on the same side, and a spring (320) is sleeved on each guide rod (330); The hollow block (3) is rotationally connected to the transmission rod (4) through a bearing, and one end of the transmission rod (4) is connected to the first motor (5) fixed inside the long sleeve (6). The corresponding part of the mouth of the long sleeve (6) is fixedly connected to the hollow block (3), and the top end face of the long sleeve (6) is connected to the cylinder (7) fixed inside the cylinder (8). A round hole block (9) is installed at the mouth of the cylinder (8), and the top end face of the cylinder (8) is connected to the output end of the oil cylinder (10). The inner wall of the hole structure in the middle of the round hole block (9) is in sliding contact with the surface of the long sleeve (6); The two bottom support blocks (1) and the round hole block (9) form a clamping structure for a bushing workpiece (17). A plurality of feeding holes (1210) are annularly distributed on the loading disc (12), and two supporting pieces (1211) are installed in an inverted V shape at the bottom of each feeding hole (1210). The shaft end in the middle of the loading disc (12) is connected to the shaft end of the second motor (13).

2. The connecting rod bushing press-fitting machine according to claim 1, wherein: The outer end of the bottom support block (1) contacts the annular surface at the bottom of the bushing workpiece (17), and the outer end of the bottom support block (1) never exceeds the annular surface of the bushing workpiece (17).

3. The connecting rod bushing press-fitting machine according to claim 1, wherein: The maximum extension radius of the outer end of the bottom support block (1) is greater than the radius of the hole structure on the external connecting rod.

4. The connecting rod bushing press-fitting machine according to claim 1, wherein: The cylinder body part of the oil cylinder (10) is fixedly installed at the top of one side of the carrier (11), and the bottom plate (15) at the bottom of the carrier (11) is fixedly installed at the top of the enclosure table (16).

5. The connecting rod bushing press according to claim 4, characterized in that: A round hole (1510) is provided in the middle of the bottom plate (15), and the round hole (1510), the feeding hole (1210) and the transmission rod (4) are located on the same central axis.

6. The connecting rod bushing press-fitting machine according to claim 4, characterized in that: A motor mounting frame (14) is fixedly installed at the rear end of the bottom plate (15), and the corresponding part of the motor mounting frame (14) is fixedly connected to the second motor (13).

7. The connecting rod bushing press-fitting machine according to claim 1, wherein: The hole length dimension of the guide hole (110) is half of the length dimension of the guide rod (330).

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