A drum assembly tool

Abstract

The utility model relates to a kind of roller assembly tool, design roller bearing assembly technical field, two sliding seats and pressing mechanism are symmetrically provided on guide rail plate, double-shaft motor and threaded rod are equipped below sliding seat, threaded rod is connected with sliding seat threadedly, sliding seat is driven along the reciprocating movement of sliding slot on guide rail plate, to adjust the distance between two pressing mechanism, to adapt to the length of different roller assembly requirement;The middle part of guide rail plate is equipped with multiple support mechanism, for lifting roller and roller shaft, the pressing mechanism on sliding seat includes fixed base, tight pressure cylinder, bearing mounting component and telescopic rod, wherein bearing mounting component includes tapered mandrel, inner support, elastic expansion sleeve and locking piece, by rotating locking piece to make inner support move inward, make elastic expansion sleeve expand, make elastic expansion sleeve adapt to the bearing inner ring of different diameter, to realize the quick positioning and clamping of different specifications bearing, improve assembly efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of roller bearing assembly technology, and in particular to a roller assembly tooling. Background Technology

[0002] To facilitate cargo handling, several rotatable rollers are arranged on a support frame. Goods are placed on the rollers, creating a rolling connection between the goods and the rollers. This allows users to easily move the goods on the transport mechanism composed of rollers. The rollers consist of a rolling surface, a shaft, bearings, and retaining rings. The rollers are fitted around the shaft and are coaxial with it. The bearings are installed at both ends of the shaft and are located in the gap between the shaft and the rolling surface. The retaining rings then confine the bearings within this gap. Because the inner ring of the bearing is interference-fitted with the shaft, and the outer ring of the bearing is interference-fitted with the rolling surface, a certain amount of pressure is required to install the bearings in the gap.

[0003] A roller assembly fixture with application number CN202122439500.3 is provided on a machine base with a first mounting seat, a second mounting seat, a lifting mechanism, a clamping mechanism, and an actuator. The first mounting seat is driven to move by a drive mechanism to press the bearing onto the end of the shaft, thereby adapting to the assembly requirements of rollers of different lengths. However, in the assembly of rollers, it may be necessary to assemble bearings of different diameters. Existing assembly devices cannot well adapt to the assembly requirements of bearings of different diameters, resulting in low assembly efficiency and limited applicability. Utility Model Content

[0004] Therefore, it is necessary to provide a roller assembly tooling.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A roller assembly fixture includes: a guide plate, two sliding seats are provided at the upper end of the guide plate, and a pressing mechanism is provided on the opposite side wall of the two sliding seats; a plurality of support mechanisms are slidably connected in the middle of the guide plate, and the support mechanisms are located between the two sliding seats; a dual-axis motor is provided at the bottom of the guide plate, and threaded rods are provided at both ends of the dual-axis motor; the threaded rods are respectively threadedly connected to the sliding seats, driving the two sliding seats to move closer or further apart; the pressing mechanism includes a fixed base, a pressing cylinder, a bearing mounting component, and a telescopic rod, the fixed base is fixedly connected to the side wall of the sliding seat; the pressing cylinder is fixed on the side of the fixed base away from the sliding seat; the telescopic rod is disposed inside the pressing cylinder, and the two ends of the telescopic rod are respectively connected to the fixed base and the bearing mounting component; the bearing mounting component includes a tapered mandrel slidably connected to the pressing cylinder, an inner support sleeve sleeved on the tapered mandrel, an elastic expansion sleeve disposed between the inner support and the tapered mandrel, and a locking component disposed on the end of the tapered mandrel away from the telescopic rod.

[0006] In one embodiment, the upper surface of the guide rail plate is provided with a first sliding groove on both sides and a second sliding groove in the middle; the first sliding groove and the second sliding groove communicate with the interior of the guide rail plate.

[0007] In one embodiment, the sliding seat is slidably connected to the first groove, and the bottom of the sliding seat extends into the guide plate and is threadedly connected to the threaded rod.

[0008] In one embodiment, the support mechanism includes a support seat slidably connected to the second groove, an adjusting screw threadedly connected to the support seat, and a lifting block fixed to the upper end face of the adjusting screw.

[0009] In one embodiment, the support base has a threaded through hole in the middle that connects the upper and lower end faces of the support base, and the threaded through hole is threadedly connected to the adjusting screw.

[0010] In one embodiment, the telescopic rod is coaxially arranged with the compression cylinder, and a return spring is sleeved on the outer side of the telescopic rod. The two ends of the return spring are fixedly connected to the sliding seat and the tapered mandrel, respectively.

[0011] In one embodiment, the tapered mandrel includes a connecting portion, a tapered portion, and a mounting rod. The connecting portion is coaxially arranged with the compression cylinder and slidably connected to the compression cylinder. The tapered portion has the same structure as the inner support member and is symmetrically arranged. The end of the mounting rod away from the connecting portion is provided with an external thread.

[0012] In one embodiment, a second spring is provided between the tapered portion and the inner support member.

[0013] In one embodiment, the locking member is a column with one open end, and the locking member has an internal thread that matches the external thread on the mounting rod.

[0014] In one embodiment, the sliding seat is equipped with a distance measuring sensor.

[0015] The beneficial effects of this utility model are as follows: The roller assembly fixture provided by this utility model has two sliding seats and a clamping mechanism symmetrically arranged on a guide rail plate. A dual-axis motor and a threaded rod are provided below the sliding seats. The threaded rod is threadedly connected to the sliding seats, driving the sliding seats to reciprocate along the slide groove on the guide rail plate, thereby adjusting the distance between the two clamping mechanisms to adapt to the assembly requirements of rollers of different lengths. The middle part of the guide rail plate is provided with multiple support mechanisms for supporting the roller and roller shaft. The clamping mechanism on the sliding seat includes a fixed base, a clamping cylinder, a bearing mounting component, and a telescopic rod. The bearing mounting component includes a tapered mandrel, an inner support component, an elastic expansion sleeve, and a locking component. By rotating the locking component, the inner support component moves inward, causing the elastic expansion sleeve to expand and adapt to the inner rings of bearings of different diameters, thereby achieving rapid positioning and clamping of bearings of different specifications, improving assembly efficiency and accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a roller assembly tool according to one embodiment;

[0018] Figure 2 This is a cross-sectional structural diagram of a roller assembly tool according to one embodiment;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of a pressing mechanism according to one embodiment.

[0020] In the attached diagram, 10 is the roller assembly fixture; 100 is the guide rail plate; 110 is the first slide groove; 120 is the second slide groove; 200 is the sliding seat; 300 is the pressing mechanism; 310 is the fixed base; 320 is the clamping cylinder; 330 is the bearing mounting component; 331 is the connecting part; 332 is the tapered part; 333 is the mounting rod; 334 is the inner support; 335 is the elastic expansion sleeve; 336 is the locking component; 337 is the second spring; 340 is the telescopic rod; 341 is the return spring; 400 is the support mechanism; 410 is the support seat; 420 is the adjusting screw; 430 is the lifting block; 500 is the dual-axis motor; 510 is the threaded rod; and 600 is the distance sensor. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0022] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" 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 utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a roller assembly fixture 10 includes: a guide rail plate 100, with two sliding seats 200 at its upper end, and pressing mechanisms 300 on opposite sidewalls of the two sliding seats 200; a plurality of support mechanisms 400 slidably connected to the middle of the guide rail plate 100, the support mechanisms 400 being located between the two sliding seats 200; a dual-axis motor 500 at the bottom of the guide rail plate 100, with threaded rods 510 at both ends of the dual-axis motor 500; the threaded rods 510 are threadedly connected to the sliding seats 200 respectively, driving the two sliding seats 200 to move closer or further apart; the pressing mechanism 300 includes a fixed base 310, a clamping mechanism 300, and a clamping mechanism 300. The system comprises a pressure cylinder 320, a bearing mounting component 330, and a telescopic rod 340. The fixed base 310 is fixedly connected to the side wall of the sliding seat 200. The pressure cylinder 320 is fixed on the side of the fixed base 310 away from the sliding seat 200. The telescopic rod 340 is disposed inside the pressure cylinder 320, and its two ends are respectively connected to the fixed base 310 and the bearing mounting component 330. The bearing mounting component 330 includes a tapered mandrel slidably connected to the pressure cylinder 320, an inner support 334 sleeved on the tapered mandrel, an elastic expansion sleeve 335 disposed between the inner support 334 and the tapered mandrel, and a locking component 336 disposed on the end of the tapered mandrel away from the telescopic rod 340.

[0024] In this embodiment, the guide plate 100 is a hollow cuboid structure. A dual-axis motor 500 is installed inside the guide plate 100. The output shafts of the dual-axis motor 500 are fixedly connected to two threaded rods 510, which are parallel to the length of the guide plate 100. A transmission rod is also provided on one side of each threaded rod 510. The two ends of the transmission rod are respectively provided with external threads identical to those of the two threaded rods 510. A driving wheel is provided on each threaded rod 510, and a driven wheel is provided on the transmission rod. The driving wheel and the driven wheel are connected by a transmission belt. A sliding seat 200... The sliding seat 200 is slidably mounted above the guide rail plate 100, with one side extending into the guide rail plate 100 and threadedly connected to the threaded rod 510, and the other side connected to the transmission rod. Multiple support mechanisms 400 are provided between the two sliding seats 200, which support the cylinder and the roller shaft. Bearings are fixed on the pressing mechanism 300. When the dual-shaft motor 500 rotates, the threaded rod and the transmission rod rotate synchronously, causing the two sliding seats 200 to move towards the middle synchronously, driving the pressing mechanism 300 to press the bearings onto both ends of the roller shaft.

[0025] Furthermore, such as Figure 3As shown, the pressing mechanism 300 includes a fixed base 310, a pressing cylinder 320, a bearing mounting component 330, and a telescopic rod 340. The fixed base 310 is fixedly connected to the side wall of the sliding seat 200. The pressing cylinder 320 is fixed on the side of the fixed base 310 away from the sliding seat 200. The pressing cylinder 320 is a cylindrical body with a telescopic rod 340 coaxially arranged inside it. One end of the telescopic rod 340 is fixedly connected to the fixed base 310, and the other end is connected to the bearing mounting component 330. The bearing mounting component 330 includes a tapered mandrel and an inner... The structure includes a support member 334, an elastic expansion sleeve 335, and a locking member 336. The tapered mandrel comprises a connecting part 331, a tapered part 332, and a mounting rod 333 connected in sequence. The outer diameter of the connecting part 331 is the same as the inner diameter of the pressure cylinder 320, allowing the tapered mandrel to slide within the pressure cylinder 320. The connecting part 331 is fixedly connected to the telescopic rod 340, enabling the tapered mandrel to slide axially along the pressure cylinder 320. The tapered part 332 is a frustum structure with a gradually decreasing outer diameter, and the mounting rod 333 is fixedly positioned at the end of the tapered part 332 with the smaller outer diameter. (Inner support member) 334 is sleeved on the mounting rod 333. The shape of the inner support member 334 is the same as that of the conical part 332, and the inner support member 334 and the conical part 332 are symmetrically arranged. A second spring 337 is provided between the inner support member 334 and the conical part 332. One end of the second spring 337 is fixedly connected to the inner support member 334, and the other end is fixedly connected to the conical part 332, which is used to provide elastic force for the inner support member 334 to move away from the conical part 332. An elastic expansion sleeve 335 is provided between the inner support member 334 and the conical part 332. When the inner support member 334 moves towards the conical part 332, the elastic expansion sleeve 335 is provided between the inner support member 334 and the conical part 332. When the elastic expansion sleeve 335 moves towards the tapered portion 332, it is expanded, thereby increasing the outer diameter of the elastic expansion sleeve 335 to adapt to bearing inner rings of different sizes, thus achieving clamping and positioning of the bearing. A locking member 336 is provided at the end of the mounting rod 333 away from the inner support member 334. The locking member 336 is a column with one open end and has an internal thread that matches the external thread on the end of the mounting rod 333. By tightening the locking member 336, the inner support member 334 can be pushed to move towards the tapered portion 332, causing the elastic expansion sleeve 335 to expand.

[0026] In order to ensure that the bearing mounting component 330 moves smoothly during reciprocating movement inside the pressing cylinder 320, a return spring 341 is also sleeved on the outside of the telescopic rod 340. One end of the return spring 341 is connected to the fixed base 310 and the other end is connected to the bearing mounting component 330. It is used to quickly reset the bearing mounting component 330 after pressing, thereby improving the bearing pressing efficiency.

[0027] To facilitate the adjustment of the positions of the sliding seat 200 and the support mechanism 400, a first slide groove 110 is provided on both sides of the upper end face of the guide rail plate 100, and a second slide groove 120 is provided in the middle of the upper end face of the guide rail plate 100. The first slide groove 110 and the second slide groove 120 are both parallel to the length direction of the guide rail plate 100. The side wall of the sliding seat 200 is provided with a slide rail that is slidably connected to the first slide groove 110, and the bottom of the sliding seat 200 passes through the second slide groove 120 and extends to the bottom of the guide rail plate 100, where it is connected to the threaded rod 510 and the transmission rod.

[0028] Furthermore, the support mechanism 400 includes a support base 410, an adjusting screw 420, and a lifting block 430. The I-shaped slide rail on the support base 410 is slidably connected to the side wall of the second slide groove 120. The middle part of the support base 410 is provided with a threaded through hole penetrating the upper and lower end faces of the support base 410, and the threaded through hole is connected to the adjusting screw 420. The upper end of the adjusting screw 420 is fixedly connected to the lifting block 430, and the upper end face of the lifting block 430 is V-shaped, which is used to lift the cylinder and the roller shaft. By rotating the adjusting screw 420, the lifting block 430 can be moved in the vertical direction, thereby adjusting the lifting height. The support mechanism 400 can be freely adjusted in position within the second slide groove 120 to adapt to cylinders and roller shafts of different sizes.

[0029] To facilitate the detection of the movement distance of the sliding seat 200 and prevent overload or incomplete pressing of the bearing, a distance sensor 600 is provided on the sliding seat 200. In this embodiment, the distance sensor 600 is a laser distance sensor. When the distance between the two sliding seats 200 reaches the set value, the dual-axis motor 500 stops running, causing the sliding seat 200 to stop moving. At this time, the distance between the two sliding seats 200 is equal to the length of the roller body plus the distance from the ends of the two pressing cylinders 320 near the bearing mounting component 330 to the side wall of the sliding plate, avoiding overload or incomplete pressing, thereby improving the accuracy and reliability of bearing pressing.

[0030] The general workflow of this utility model is as follows: Adjust the locking member 336 and the inner support member 334 according to the inner diameter of the bearing, moving them towards the tapered portion 332 so that the outer diameter of the elastic expansion sleeve 335 adapts to the size of the bearing's inner ring, and the bearing is fixed on the elastic expansion sleeve 335; after adjusting the position and height of the support mechanism 400, place the cylinder and roller shaft of the bearing to be press-fitted into the "V" groove of the lifting block 430, start the dual-axis motor 500 to drive the threaded rod 510 to rotate, driving the two sliding seats 200 to move closer to each other, connecting the end of the locking member 336 with the holes at both ends of the roller shaft, and then the bearing mounting component 330... The bearing moves inward under pressure into the pressing cylinder 320, and the end of the pressing cylinder 320 pushes the bearing, gradually pressing the bearing from the bearing mounting component 330 onto the roller. At this time, the distance sensor 600 monitors the distance change between the sliding seats 200 in real time. When the preset pressing distance is reached, the dual-axis motor 500 automatically stops, and the sliding seats 200 stop moving, ensuring the bearing is pressed in place without overloading. After pressing, the dual-axis motor 500 reverses, the sliding plate moves in the opposite direction, and under the action of the return spring 341 and the telescopic rod 340, the bearing mounting component 330 automatically returns to its initial position, completing one complete roller assembly operation. This utility model has the advantages of simple structure, convenient operation, high pressing accuracy, and strong applicability, and can effectively improve the assembly efficiency and quality of rollers and bearings.

[0031] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A roller assembly fixture, characterized in that, include: The guide rail plate has two sliding seats at its upper end, and each of the two sliding seats has a pressing mechanism on its opposite sidewall. Multiple support mechanisms are slidably connected to the middle of the guide rail plate, with the support mechanisms located between the two sliding seats. A dual-axis motor is located at the bottom of the guide rail plate, with threaded rods at both ends. The threaded rods are threadedly connected to the sliding seats, driving the two sliding seats to move closer or further apart. The pressing mechanism includes a fixed base, a clamping cylinder, a bearing mounting component, and a telescopic rod. The fixed base is fixedly connected to the sidewall of the sliding seat. The clamping cylinder is fixed to the side of the fixed base away from the sliding seat. The telescopic rod is located inside the clamping cylinder, with its two ends connected to the fixed base and the bearing mounting component, respectively. The bearing mounting component includes a tapered mandrel slidably connected to the clamping cylinder, an inner support sleeve fitted onto the tapered mandrel, an elastic expansion sleeve between the inner support and the tapered mandrel, and a locking component located at the end of the tapered mandrel away from the telescopic rod.

2. The roller assembly fixture according to claim 1, characterized in that, The upper surface of the guide rail plate is provided with first sliding grooves on both sides and a second sliding groove in the middle; the first sliding groove and the second sliding groove are connected to the interior of the guide rail plate.

3. The roller assembly fixture according to claim 2, characterized in that, The sliding seat is slidably connected to the first groove, and the bottom of the sliding seat extends into the guide plate and is threadedly connected to the threaded rod.

4. The roller assembly fixture according to claim 2, characterized in that, The support mechanism includes a support seat slidably connected to the second slide groove, an adjusting screw threadedly connected to the support seat, and a lifting block fixed to the upper end face of the adjusting screw.

5. A roller assembly fixture according to claim 4, characterized in that, The support base has a threaded through hole in the middle that connects the upper and lower end faces of the support base, and the threaded through hole is threadedly connected to the adjusting screw.

6. The roller assembly fixture according to claim 1, characterized in that, The telescopic rod is coaxially arranged with the compression cylinder, and a return spring is sleeved on the outer side of the telescopic rod. The two ends of the return spring are fixedly connected to the sliding seat and the tapered mandrel, respectively.

7. A roller assembly fixture according to claim 6, characterized in that, The tapered mandrel includes a connecting part, a tapered part, and a mounting rod. The connecting part is coaxially arranged with the pressing cylinder and is slidably connected to the pressing cylinder. The tapered part has the same structure as the inner support member and is symmetrically arranged. The end of the mounting rod away from the connecting part is provided with an external thread.

8. A roller assembly fixture according to claim 7, characterized in that, A second spring is provided between the tapered portion and the inner support member.

9. A roller assembly fixture according to claim 8, characterized in that, The locking element is a column with one open end, and the locking element has an internal thread that matches the external thread on the mounting rod.

10. A roller assembly fixture according to claim 1, characterized in that, The sliding seat is equipped with a distance measuring sensor.

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