Solid shaft press-fitting equipment

Abstract

The utility model provides solid shaft press fitting equipment, and belongs to the technical field of solid shaft press fitting. Comprising a workbench; the air cylinder is arranged at the top of the workbench; the fixing piece is movably arranged on the workbench, and the output end of the air cylinder penetrates through the workbench and is connected with the fixing piece; the fixing ring is arranged below the fixing piece; the solid shaft body is arranged between the fixing piece and the fixing ring; and the bottom plate is arranged at the bottom of the workbench. Through the arrangement of the elastic cylinder and the spiral groove, when the solid shaft is pressed into the placing cylinder, the placing cylinder bears downward pressure, under the action of the pressure, the placing cylinder slides downwards along the spiral groove through the elastic cylinder, and in the process, the spiral groove guides the elastic cylinder to rotate and press downwards; a part of impact force in the vertical direction is converted into rotating kinetic energy, and the buffering time and the buffering distance are prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid axle press equipment field, especially a kind of solid axle press equipment. BACKGROUND

[0002] Solid axle press is to press solid axle parts by exerting certain axial pressure, so that it is closely matched with other parts such as hub, gear and the like. This assembly method mainly relies on the interference between the shaft and the mating parts to achieve connection, so as to transmit torque, axial force and other loads.

[0003] At present, the existing solid axle lacks buffering measures during the press process. When the solid axle is pressed into the mating part with great force, the instantaneous huge impact force is not effectively buffered and dispersed, which easily causes damage to the solid axle itself and the mating parts. Therefore, the present application provides a solid axle press equipment to meet the needs. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a solid axle press equipment to solve the problem of lack of buffering measures during the press process of the existing solid axle.

[0005] To solve the above technical problems, the utility model provides the following technical scheme.

[0006] A solid axle press equipment includes a workbench, a gas cylinder arranged on the top of the workbench, a fixed part movably arranged on the workbench, and an output end of the gas cylinder penetrating through the workbench and connected with the fixed part, a fixed ring arranged below the fixed part, a solid axle body arranged between the fixed part and the fixed ring, a bottom plate arranged on the bottom of the workbench, a placing cylinder movably arranged on the top of the bottom plate and aligned with the shaft center of the solid axle body, an elastic cylinder arranged on the bottom of the placing cylinder, a helical groove arranged in the bottom plate and matched with the elastic cylinder, a sliding block arranged on the surface of the elastic cylinder and slidably connected with the helical groove, and the placing cylinder is arranged to slide downward along the helical groove through the elastic cylinder to form a buffer.

[0007] It further includes a connecting ring block slidably arranged in the elastic cylinder at one end and rotatably connected with the placing cylinder at the other end.

[0008] It further includes a plurality of tension springs arranged in the placing cylinder at one end and connected with the connecting ring block at the other end in a circumferential distribution.

[0009] It further includes a plurality of limiting blocks arranged in the placing cylinder in a circumferential distribution.

[0010] The fixing member comprises a placement block, a placement cavity is arranged at the center of the placement block, and the placement cavity is matched with the solid shaft body; a plurality of installation grooves are arranged in the placement cavity and are distributed in a circle.

[0011] Further comprising: a telescopic member arranged in the installation groove.

[0012] Further comprising: a semicircular block arranged on the telescopic member, and the size of the semicircular block is smaller than that of the installation groove.

[0013] Further comprising: a sliding rod slidingly arranged on the workbench and connected with the fixing ring.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects.

[0015] In the above scheme, by arranging the elastic cylinder and the spiral groove, when the solid shaft is pressed into the placement cylinder, the placement cylinder will be subjected to downward pressure, and under the action of the pressure, the placement cylinder will slide downward along the spiral groove through the elastic cylinder, in this process, the spiral groove guides the elastic cylinder to generate a rotating downward movement, and converts a part of the impact force in the vertical direction into rotational kinetic energy, thereby prolonging the buffering time and buffering distance.

[0016] By arranging the connecting ring block and the tension spring, when the placement cylinder is subjected to the downward impact force, the tension spring is compressed, so that the solid shaft body can enter the matching component in a relatively gentle manner, thereby reducing the impact force and further buffering the impact force when the solid shaft is pressed and assembled. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of a solid shaft pressing and assembling device.

[0018] Figure 2 It is a schematic diagram of a solid shaft body structure.

[0019] Figure 3 It is a schematic diagram of a spiral groove structure.

[0020] Figure 4 It is a schematic diagram of a sliding block structure.

[0021] Figure 5 It is a schematic diagram of a tension spring structure.

[0022] Figure 6 It is a sectional view of a placement block structure.

[0023] [REFERENCE SIGNS]

[0024] 1, workbench; 2, air cylinder; 3, solid shaft body; 4, sliding rod; 5, fixed ring; 6, bottom plate; 7, placing cylinder; 8, fixing piece; 9, spiral groove; 10, elastic cylinder; 11, sliding block; 81, placing block; 82, telescopic piece; 83, mounting groove; 84, semicircular block; 101, connecting ring block; 102, tension spring; 103, limiting block.

[0025] As shown in the drawings, in order to clearly realize the structure of the embodiment of the utility model, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the utility model in the specific structure, device and environment, and the ordinary skilled in the art can adjust or modify these devices and environment according to specific needs, and the adjustment or modification still includes in the scope of the appended claims. DETAILED DESCRIPTION

[0026] The solid shaft press fitting equipment provided by the utility model is described in detail below in combination with the drawings and specific embodiments. Meanwhile, it is explained here that in order to make the embodiment more detailed, the following embodiments are the best and preferred embodiments, and the skilled in the art can also use other alternative ways to implement; and the drawings are only for more specific description of the embodiment, and are not intended to specifically limit the utility model.

[0027] As shown in the drawings, Figure 1 Figure 6 The embodiment of the utility model provides a solid shaft press fitting equipment, which comprises: a workbench 1; an air cylinder 2 arranged on the top of the workbench 1; a fixing piece 8 movably arranged on the workbench 1, and the output end of the air cylinder 2 penetrates through the workbench 1 and is connected with the fixing piece 8; a fixed ring 5 arranged below the fixing piece 8; a solid shaft body 3 arranged between the fixing piece 8 and the fixed ring 5; a bottom plate 6 arranged on the bottom of the workbench 1; a placing cylinder 7 movably arranged on the top of the bottom plate 6 and aligned with the axis of the solid shaft body 3; an elastic cylinder 10 arranged at the bottom of the placing cylinder 7; a spiral groove 9 arranged in the bottom plate 6, and the spiral groove 9 is matched with the elastic cylinder 10; a sliding block 11 arranged on the surface of the elastic cylinder 10 and slidably connected with the spiral groove 9; the placing cylinder 7 is arranged to slide downward along the spiral groove 9 through the elastic cylinder 10 to form a buffer.

[0028] The fixed ring 5 comprises two half clamping rings connected by magnetism or clamping, and one of the half clamping rings is connected with the sliding rod 4, so that the fixed ring 5 moves synchronously when the solid shaft body 3 moves; the placing cylinder 7 can be covered with an elastic coating, which can avoid the rigid collision between the workpiece placed in the placing cylinder 7 and the inner wall of the placing cylinder 7 and also has a buffering effect.

[0029] ​Further comprising: a connecting ring block 101, one end of which is slidingly arranged in the elastic cylinder 10, and the other end is rotationally connected with the placing cylinder 7. By arranging the connecting ring block 101, when the placing cylinder 7 is subjected to pressure, the connecting ring block 101 moves downward, and the force can be smoothly transmitted to the elastic cylinder 10 through the connecting ring block 101.

[0030] Further comprising: a plurality of tension springs 102, one end of which is arranged in the placing cylinder 7, and the other end is connected with the connecting ring block 101, and is distributed in a circle. When the placing cylinder 7 is subjected to external force, the connecting ring block 101 moves downward, so that the tension spring 102 is compressed, and the tension spring 102 stores its compression energy, and at the same time, the tension spring 102 can resist the impact force caused by the downward pressure of the solid shaft, thereby playing a buffering role. After the external force disappears, the elastic energy is released through the tension spring 102, and the connecting ring block 101 is reset.

[0031] Further comprising: a plurality of limiting blocks 103, which are arranged in the placing cylinder 7 and are distributed in a circle. By arranging the limiting block 103, when the tension spring 102 is compressed, the compression range of the tension spring 102 is limited, so as to avoid the tension spring 102 being excessively compressed, which may cause the spring to exceed its elastic limit and be damaged.

[0032] The fixing member 8 comprises: a placing block 81, a placing cavity is arranged at the center of the placing block 81, and the placing cavity is matched with the solid shaft body 3; and a plurality of installation grooves 83, which are arranged in the placing cavity and are distributed in a circle. By arranging the placing block 81, the solid shaft body 3 is placed in the placing cavity matched with it, so as to realize the centering of the solid shaft body 3.

[0033] Further comprising: a telescopic member 82 arranged in the installation groove 83. The telescopic member 82 comprises a telescopic rod, a reset spring is sleeved on the surface of the telescopic rod, one end of the reset spring is connected with a semicircular block 84, and the other end is connected with the inner cavity of the installation groove 83. A limiting cylinder can also be sleeved on the outer surface of the reset spring, so as to avoid the reset spring being excessively compressed.

[0034] Further comprising: a semicircular block 84 arranged on the telescopic member 82, and the size of the semicircular block 84 is smaller than that of the installation groove 83. By arranging the semicircular block 84, the semicircular block 84 is tightly attached to the surface of the solid shaft, and the surface of the semicircular block 84 can be made of relatively soft material or be appropriately surface treated, such as rubber coating or polishing treatment, so as to reduce the scratching and damage to the surface of the solid shaft. After the solid shaft body 3 contacts with the semicircular block 84, the semicircular block 84 moves to the installation groove 83, so that the telescopic rod is contracted and the reset spring is compressed. After the solid shaft body 3 is taken out, the reset spring drives the semicircular block 84 to reset.

[0035] Further comprising: slide rod 4, slidingly arranged on the workbench 1, and connected with the fixed ring 5. By setting the slide rod 4, in the solid shaft press fitting process, when the fixed ring 5 moves along with the downward movement of the solid shaft, the slide rod 4 plays a guiding role, which can ensure that the fixed ring 5 moves stably up and down along the vertical direction, avoiding the shaking or deviation of the fixed ring 5 in the horizontal direction.

[0036] The technical scheme provided by the utility model, first, the solid shaft body 3 is inserted into the placing block 81, so that the semicircular block 84 contacts with the solid shaft body 3, the telescopic piece 82 is retracted into the installation groove 83, then the other part of the solid shaft body 3 is fixed by the fixed ring 5, the workpiece is placed into the placing cylinder 7, the cylinder 2 is extended, drives the placing block 81 to move downwards, so that the slide rod 4 moves downwards on the workbench 1, thereby driving the solid shaft body 3 to move towards the placing cylinder 7, when the solid shaft body 3 contacts with the workpiece in the placing cylinder 7 and starts to exert pressure, the placing cylinder 7 is subjected to downward force, and will slide downwards along the spiral groove 9 through the elastic cylinder 10, in this process, the spiral groove 9 guides the elastic cylinder 10 to rotate and press downwards, converts a part of the impact force in the vertical direction into rotational kinetic energy, prolongs the buffering time and buffering distance, simultaneously, the connecting ring block 101 moves downwards, compresses the tensile spring 102, so as to absorb and resist the impact force; after the press fitting is completed, the cylinder 2 is retracted, so that the solid shaft body 3 is separated from the placing cylinder 7, the connecting ring block 101 is reset through the tensile spring 102, finally, the placing cylinder 7 can be moved to the original position.

[0037] The utility model covers any alternative, modification, equivalent method and scheme which are made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the above preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0038] The above only is the preferred implementation mode of the utility model, should point out, for ordinary technical personnel in this technical field, on the premise that without departing from the principle of the utility model, still can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model.

Claims

1. A solid shaft press-fitting device, characterized in that, include: Workbench (1); Cylinder (2) is disposed on the top of the worktable (1); The fixing part (8) is movably set on the workbench (1), and the output end of the cylinder (2) passes through the workbench (1) and is connected to the fixing part (8); A retaining ring (5) is disposed below the fastener (8); A solid shaft body (3) is disposed between the fixing member (8) and the fixing ring (5); A base plate (6) is provided at the bottom of the workbench (1); The placement cylinder (7) is movably set on the top of the base plate (6) and aligned with the axis of the solid shaft body (3); An elastic cylinder (10) is disposed at the bottom of the placement cylinder (7); A spiral groove (9) is provided in the base plate (6), and the spiral groove (9) is adapted to the elastic cylinder (10); A slider (11) is disposed on the surface of the elastic cylinder (10) and is slidably connected to the spiral groove (9); The placement cylinder (7) is configured to slide downward along the spiral groove (9) through the elastic cylinder (10) to form a buffer.

2. The solid shaft press-fitting equipment according to claim 1, characterized in that, Also includes: The connecting ring block (101) has one end slidably disposed inside the elastic cylinder (10), and the other end is rotatably connected to the placement cylinder (7).

3. The solid shaft press-fitting equipment according to claim 2, characterized in that, Also includes: Several tension springs (102) are arranged in a circular pattern, with one end placed inside the placement cylinder (7) and the other end connected to the connecting ring block (101).

4. The solid shaft press-fitting equipment according to claim 1, characterized in that, Also includes: Several limiting blocks (103) are arranged in the placement cylinder (7) in a circular distribution.

5. The solid shaft press-fitting equipment according to claim 1, characterized in that, The fastener (8) includes: Placement block (81), wherein a placement cavity is provided at the center of the placement block (81), and the placement cavity is adapted to the solid shaft body (3); Several mounting slots (83) are provided in the placement cavity and are distributed in a circular pattern.

6. The solid shaft press-fitting equipment according to claim 5, characterized in that, Also includes: The telescopic component (82) is disposed within the mounting groove (83).

7. The solid shaft press-fitting equipment according to claim 6, characterized in that, Also includes: A semicircular block (84) is disposed on the telescopic member (82), the size of the semicircular block (84) being smaller than the mounting groove (83).

8. The solid shaft press-fitting equipment according to claim 1, characterized in that, Also includes: The slide bar (4) is slidably mounted on the worktable (1) and connected to the fixed ring (5).

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