Flat-potential-free sleeve press-in device

Abstract

The utility model discloses a sleeve press-in device without flat potential. The sleeve press-in device comprises a pressure plate and a hydraulic cylinder, wherein the pressure plate is horizontally connected to a workbench in a sliding mode, and the hydraulic cylinder is arranged on the workbench and used for driving the pressure plate to slide. Two placement seats are arranged on the workbench, the upper end of one placement seat is rotationally connected to the workbench and used for placing an inner chain plate and a sleeve, and the upper end of the other placement seat is rotationally connected to the pressure plate and used for placing the inner chain plate; and a rotating shaft of the placement seat is arranged in the horizontal direction and is perpendicular to the sliding direction of the pressure plate. The device has the beneficial effects that the inner chain plate and the sleeve can be conveniently taken and placed through the placement base, the movement distance of the pressure plate is reduced, and production efficiency is improved; when the second inner chain plate is subjected to press fitting, the position is kept without manual supporting, and the press fitting failure rate is reduced; the rotation of the placement seat is synchronously carried out under the driving of the pressure plate, no new operation step and power mechanism are added, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of chain assembly, and particularly relates to a non-flattening sleeve pressing device. Background Art

[0002] As the main actuator of the conveying / lifting equipment, the chain needs to be customized due to the different types and properties of the conveyed / lifted materials, as well as the different working scenes and environments. The corresponding non-standard customization requirements of the chain are also very high. The sleeve designed before was flat, which was used for positioning between the sleeve and the inner chain plate. However, with the iterative update of the processing equipment, there is little significance in processing the flat on the sleeve. The current sleeve is installed on the inner chain plate by interference fit. The interference fit of the sleeve and the inner chain plate requires a hydraulic cylinder for press-fitting. However, due to the large number of chain links and different customization requirements, the assembly of the chain, especially the assembly of the sleeve and the inner chain plate, requires a lot of labor.

[0003] The Chinese patent document with publication number CN113305266B discloses a chain inner single-section assembly method with reduced processes, which relates to the field of chain transmission technology, including step 1, using a chain assembly machine to press the sleeve into the lower inner chain plate; step 2, using the chain assembly machine to cover the roller on the sleeve; step 3, using the limit assembly device set on the chain assembly machine to complete the press-fitting between the upper inner chain plate and the sleeve and the flushing of the upper inner chain plate with the top of the sleeve at one time. The limit assembly device includes a bottom plate, a fixing seat, a guide pin, a guide sleeve, a guide groove, a spring, and a limit mechanism.

[0004] In the above patent solution, a hydraulic device is used to press the sleeve into the inner link plate to achieve an interference fit. In order to prevent the sleeve from being deformed during the pressing process, the length of the guide pin is often longer than the length of the sleeve. In order to facilitate the removal and installation of the sleeve and the inner link plate from the guide pin, the movement stroke of the hydraulic device must be at least greater than the length of the sleeve. In addition, the positive pressure provided by the hydraulic device is relatively large, so the movement speed of the hydraulic device is also slow. All of these affect the working efficiency of the sleeve pressing device. Utility Model Content

[0005] In order to overcome the technical problem in the prior art that during the pressing-in process of the sleeve and the inner link plate, the movement stroke of the hydraulic device is long, resulting in low working efficiency of the pressing device, one purpose of the utility model is to provide a sleeve pressing device without flattening. By arranging a movable guide pin, when the hydraulic device leaves the guide pin, the guide pin is moved away from the position opposite to the hydraulic device, which facilitates the installation and disassembly of the inner link plate and the sleeve, while reducing the displacement distance of the hydraulic device, thereby improving working efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a non-flattening sleeve pressing device, including a pressure plate horizontally slidably connected to a workbench and a hydraulic cylinder arranged on the workbench for driving the pressure plate to slide; two placement seats are arranged on the workbench, one of the placement seats is rotatably connected to the workbench at the upper end for placing an inner chain plate and a sleeve, and the other placement seat is rotatably connected to the pressure plate at the upper end for placing an inner chain plate; the rotating axis of the placement seat is arranged in the horizontal direction and is perpendicular to the sliding direction of the pressure plate.

[0007] Preferably, the side wall of the placement seat is formed with a linkage column whose axis is parallel to and does not overlap with its rotation axis; the workbench is provided with a transmission component for driving the linkage column to rotate; and the transmission component is transmission-connected to the pressure plate.

[0008] When the two mounting seats move away from each other under the drive of the pressure plate, the two mounting seats rotate upward to a horizontal position, so as to facilitate the taking and placing of the inner link plate and the sleeve; when the two mounting seats move closer to each other under the drive of the pressure plate, the two mounting seats rotate downward to a vertical position first, and then under the pressure of the pressure plate, the inner link plate and the sleeve are pressed together. The shortened movement distance of the pressure plate helps to improve the working efficiency of the pressing.

[0009] Optionally, linkage grooves slidably connected to adjacent linkage columns are formed at both ends of the transmission component; and the maximum distance between the inner walls of two linkage grooves is equal to the maximum distance between two linkage columns.

[0010] When the two seating seats slide away from each other, the two linkage grooves pull the two linkage columns respectively, thereby driving the linkage columns to rotate, that is, the seating seats rotate upward to facilitate the placement of the inner chain plate and the sleeve.

[0011] Specifically, a positioning tube is longitudinally slidably connected to the workbench; a stabilizing shaft slidably connected to the transmission member is provided on the positioning tube; and a sliding direction of the transmission member relative to the stabilizing shaft is parallel to a sliding direction of the pressure plate.

[0012] The positioning tube enables the transmission component to maintain longitudinal sliding without deflection, and the two mounting seats rotate at a uniform speed during the downward rotation, thereby preventing the inner chain plates placed on the mounting seats from falling off.

[0013] Optionally, the transmission member is located directly below the two linkage columns; the transmission member is provided with an inclined driven inclined slot; and the pressure plate is provided with a driving column for driving the driven inclined slot to slide upward.

[0014] The sliding of the pressure plate causes the driving column to drive the transmission component to slide upward, thereby driving the linkage column to rotate, that is, driving the placement seat to rotate upward.

[0015] Furthermore, the mounting seat includes a base plate and two elastic rings slidably connected to the base plate; the outer diameter of the elastic ring is equal to the inner diameter of the through hole on the inner chain plate; two guide pins slidably connected to the elastic rings are provided on the base plate rotatably connected to the workbench; the outer diameter of the guide pin is equal to the inner diameter of the sleeve.

[0016] Specifically, the placement seat includes a cover plate fixedly connected to the base plate; the elastic ring is slidably connected between the base plate and the cover plate; two bosses are formed on one end of the base plate facing the cover plate, which are respectively abutted against the corresponding elastic rings; a spring is arranged on the outer periphery of the boss between the elastic ring and the base plate.

[0017] When the boss abuts against the elastic ring, the elastic ring is flush with the surface of the cover plate, thereby preventing deformation of the end of the inner link plate away from the sleeve during the press-fitting process.

[0018] Specifically, an outer ring is formed on the outer wall of the elastic ring at one end facing the adjacent base plate; two through holes are formed on the cover plate and are respectively slidably connected to the outer ring; an inner ring for limiting the sliding of the outer ring is formed on the inner wall of the through hole at one end away from the base plate.

[0019] Furthermore, two parallel vertical plates are longitudinally arranged on the workbench, one of which is rotatably connected to the corresponding mounting seat, and the other vertical plate is abutted against an end of the hydraulic cylinder away from the pressure plate; two symmetrically arranged sliding shafts slidably connected to the pressure plate are arranged between the two vertical plates; and the hydraulic cylinder is arranged between the two sliding shafts.

[0020] Preferably, the two seating seats are detachably connected to the workbench and the pressure plate.

[0021] According to different customization requirements, compatibility can be achieved by replacing different mounting seats and adjusting the stroke of the hydraulic cylinder.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The utility model uses a rotating placement seat. When it is rotated to face upward, it is convenient to take and place the inner chain plate and the sleeve. When it is rotated to the bottom for press-fitting, the movement distance of the pressure plate is only the pressing depth and the gap reserved for rotation, which greatly reduces the movement distance of the pressure plate and improves production efficiency.

[0024] 2. The utility model performs press-fitting when the mounting seat is in a vertical state. Both mounting seats are provided with molds for placing the inner chain plates. When the second inner chain plate is press-fitted, the installation positioning is accurate and no manual support is required to maintain the position, which reduces the failure rate of press-fitting and improves the safety of manual operation.

[0025] 3. The rotation of the placement seat of the utility model is carried out synchronously under the drive of the pressure plate, without adding new operating steps and power mechanisms, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the inner link plate and the sleeve pressed into the utility model;

[0027] Figure 2 It is a schematic diagram of the exploded structure of the parts of the utility model;

[0028] Figure 3 , Figure 4 This is a schematic diagram of the exploded structure of the placement seat of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the transmission component of the utility model;

[0030] Figure 6 It is a schematic diagram of the structure of the utility model for taking and placing the inner chain plate and the sleeve.

[0031] In the figure: 11, workbench; 111, pressure vertical plate; 112, hydraulic vertical plate; 113, sliding shaft; 114, vertical tube; 2, placement seat; 21, bottom plate; 211, boss; 212, guide pin; 213, guide angle; 214, linkage column; 215, guide hole; 216, disassembly shaft; 22, cover plate; 221, through hole; 222, inner ring; 23, elastic ring; 231, outer ring; 24, spring; 31, pressure plate; 32, hydraulic cylinder; 41, inner chain plate; 42, sleeve; 43, roller; 51, transmission component; 511, linkage groove; 52, stabilizing shaft; 521, positioning tube. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0033] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1 to Figure 6 A non-flattening sleeve pressing device comprises a horizontally arranged workbench 11; two parallel vertical plates are longitudinally arranged on the upper end of the workbench 11, wherein the vertical plate located on the left is a pressure-bearing vertical plate 111, and the vertical plate located on the right is a hydraulic vertical plate 112; two symmetrically arranged sliding shafts 113 arranged along the left and right directions are arranged between the two vertical plates; pressure plates 31 are slidably connected to the two sliding shafts 113; a hydraulic cylinder 32 is arranged between the pressure plate 31 and the hydraulic vertical plate 112; a press-fitting button for controlling the hydraulic cylinder 32 is arranged on the workbench 11.

[0037] In the press-fitting process of the inner link plate 41 and the sleeve 42, in order to achieve the interference fit between the sleeve 42 and the inner link plate 41, the sleeve 42 is not pressed into the inner link plate 41 at a uniform speed, but a variable speed motion with multiple stages of different speeds. Therefore, in order to ensure the success rate of the interference fit and the multi-faceted considerations of the docking accuracy, after the sleeve 42 and the inner link plate 41 are press-fitted once, it is necessary to conduct a preliminary inspection of the press-fitting quality and accuracy before pressing another inner link plate.

[0038] Two mounting seats 2 are rotatably connected to the workbench 11 , wherein the upper end of one of the mounting seats 2 is rotatably connected to the pressure-bearing vertical plate 111 , and the upper end of the other mounting seat 2 is rotatably connected to the pressure plate 31 .

[0039] The placement seat 2 includes a base plate 21, a cover plate 22 fixedly connected to the base plate 21, two elastic rings 23 slidably connected between the base plate 21 and the cover plate 22, and two springs 24 arranged between the elastic ring 23 and the base plate 21 for sliding the elastic ring 23 away from the base plate 21; the outer diameter of the elastic ring 23 is equal to the inner diameter of the through hole on the inner chain plate; two guide pins 212 respectively slidably connected to the elastic ring 23 are arranged on the base plate 21 rotatably connected to the pressure-bearing vertical plate 111; two guide holes 215 for accommodating the guide pins 212 are arranged on the base plate 21 rotatably connected to the pressure plate 31; a guide angle 213 is formed on the end of the guide pin 212 away from the corresponding base plate 21; the outer diameter of the guide pin 212 is equal to the inner diameter of the sleeve 42.

[0040] The two bottom plates 21 are detachably connected with disassembly shafts 216 rotatably connected to the workbench 11 or the pressure plate 31 ; one end of the bottom plate 21 facing the cover plate 22 is formed with two bosses 211 respectively abutting against the corresponding elastic rings 23 .

[0041] An outer ring 231 is formed on the outer wall of the elastic ring 23 at one end facing the adjacent base plate 21; two through holes 221 are formed on the cover plate 22 and are respectively slidably connected to the outer ring 231; an inner ring 222 for limiting the sliding of the outer ring 231 is formed on the inner wall of the through hole 221 at one end away from the base plate 21.

[0042] The two side walls of the bottom plate 21 are respectively formed with linkage columns 214 whose axes are parallel to the rotation axis and are not overlapped with each other; a transmission component 51 which is transmission-connected to the pressure plate 31 is arranged between the two linkage columns 214 on the same side.

[0043] The transmission member 51 is in the shape of a long rod, and both ends of the transmission member are respectively formed with linkage grooves 511 that are slidably connected to the linkage column 214; the maximum distance between the inner walls of the two linkage grooves 511 is equal to the maximum distance between the two linkage columns 214; two stabilizing shafts 52 are longitudinally slidably connected to the workbench 11; the upper ends of the stabilizing shafts 52 are formed with horizontally arranged 521 that are slidably connected to the adjacent transmission members 51; the upper end of the workbench 11 is formed with two vertical tubes 114 that are slidably connected to the stabilizing shafts 52.

[0044] In other embodiments, the transmission member 51 may be plate-shaped; the transmission member 51 is located directly below the two linkage columns 214, and an inclined driven inclined groove is provided on the transmission member 51; the pressure plate 31 is provided with a driving column for driving the driven inclined groove to slide upward.

[0045] Processing procedure: The operator sleeves the inner link plate 41 on the outer periphery of the elastic ring 23 installed on the workbench 11, and then sleeves the sleeve 42 on the outer periphery of the guide pin 212, presses the press-fit button, and the hydraulic cylinder 32 pushes the pressure plate 31 toward the pressure-bearing vertical plate 111. When the two mounting seats 2 slide toward each other, the mounting seats 21 rotate downward to a vertical state under the action of gravity, the pressure plate 31 continues to slide, and the elastic ring 23 slides toward the bottom plate 21 until it abuts against the boss 211, and then the sleeve 42 is pressed into the inner link plate 41.

[0046] The operator presses the press-fit button again, and the hydraulic cylinder 32 drives the pressure plate 31 to slide to the original position, and the two seats 2 slide away from each other. When the outermost side of the linkage groove 511 contacts the linkage column 214, the seat 2 continues to slide and drives the seat 2 to rotate upward, and then the guide pin 212 and the elastic ring 23 face upward. After the operator conducts a preliminary inspection of the press-fit quality, the roller 43 is mounted on the sleeve, and then the other inner link plate 41 is mounted on the outer periphery of the elastic ring 23 installed on the pressure plate 31.

[0047] The operator presses the press-fit button again, and the hydraulic cylinder 32 drives the two mounting seats 2 to slide toward each other, press-fitting the inner chain plate 41 on the other side of the sleeve 42, and the inner chain plate 41 is separated from the elastic ring 23 on the pressure plate 31. Finally, the mounting seat 2 is rotated upward to remove the pressed chain link.

[0048] In other embodiments, when the pressure plate 31 drives the two mounting seats 2 to slide toward each other, the transmission member 51 slides downward without abutting against the linkage column 214; when the pressure plate 31 drives the two mounting seats 2 to slide away from each other, the driving column drives the driven inclined groove to move upward and thus causes the transmission member 51 to slide upward, and the transmission member 51 slides upward to drive the linkage column 214 to rotate, thereby causing the mounting seat 2 to rotate upward toward the upper part.

[0049] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A non-flattening sleeve pressing device, characterized in that: It includes a pressure plate horizontally slidably connected to the workbench and a hydraulic cylinder arranged on the workbench for driving the pressure plate to slide; two placement seats are arranged on the workbench, the upper end of one of the placement seats is rotatably connected to the workbench for placing an inner chain plate and a sleeve, and the upper end of the other placement seat is rotatably connected to the pressure plate for placing the inner chain plate; the rotating axis of the placement seat is arranged in the horizontal direction and is perpendicular to the sliding direction of the pressure plate.

2. The pressing device according to claim 1, characterized in that: The side wall of the placement seat is formed with a linkage column whose axis is parallel to and does not overlap with the rotation axis; the workbench is provided with a transmission component for driving the linkage column to rotate; the transmission component is transmission-connected to the pressure plate.

3. The pressing device according to claim 2, characterized in that: Both ends of the transmission component are respectively formed with linkage grooves that are slidably connected to the adjacent linkage columns; the maximum distance between the inner walls of the two linkage grooves is equal to the maximum distance between the two linkage columns.

4. The pressing device according to claim 3, characterized in that: A positioning tube is longitudinally slidably connected to the workbench; a stabilizing shaft slidably connected to the transmission member is arranged on the positioning tube; and a sliding direction of the transmission member relative to the stabilizing shaft is parallel to a sliding direction of the pressure plate.

5. The pressing device according to claim 2, characterized in that: The transmission component is located directly below the two linkage columns; the transmission component is provided with an inclined driven inclined slot; the pressure plate is provided with a driving column for driving the driven inclined slot to slide upward.

6. The pressing device according to any one of claims 1 to 5, characterized in that: The placement seat includes a base plate and two elastic rings slidably connected to the base plate; the outer diameter of the elastic ring is equal to the inner diameter of the through hole on the inner chain plate; the base plate rotatably connected to the workbench is provided with two guide pins slidably connected to the elastic rings respectively; the outer diameter of the guide pin is equal to the inner diameter of the sleeve.

7. The pressing device according to claim 6, characterized in that: The placement seat includes a cover plate fixedly connected to the base plate; the elastic ring is slidably connected between the base plate and the cover plate; two bosses are formed on one end of the base plate facing the cover plate, which are respectively abutted against the corresponding elastic rings; a spring is arranged on the outer periphery of the boss between the elastic ring and the base plate.

8. The pressing device according to claim 7, characterized in that: An outer ring is formed on the end of the outer wall of the elastic ring facing the adjacent base plate; two through holes are formed on the cover plate and are respectively slidably connected to the outer ring; an inner ring for limiting the sliding of the outer ring is formed on the end of the inner wall of the through hole away from the base plate.

9. The pressing device according to any one of claims 1 to 5, characterized in that: Two parallel vertical plates are longitudinally arranged on the workbench, one of which is rotatably connected to the corresponding mounting seat, and the other vertical plate is abutted against the end of the hydraulic cylinder away from the pressure plate; two symmetrically arranged sliding shafts slidably connected to the pressure plate are arranged between the two vertical plates; and the hydraulic cylinder is arranged between the two sliding shafts.

10. The pressing device according to any one of claims 1 to 5, characterized in that: The two seating seats are detachably connected to the workbench and the pressure plate.

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