Snap spring mounting clamp for shaft parts

Abstract

The utility model discloses a shaft part clamp spring installation clamp and belongs to the technical field of clamp spring installation. The upper end of the bottom plate is connected with the first positioning block, the second positioning block and the support, the side wall of the second positioning block is provided with a check block, and the upper ends of the check block, the first positioning block and the second positioning block are provided with positioning grooves. The handle is hinged to the first connecting rod, the first connecting rod is hinged to the mounting base and the second connecting rod, and the second connecting rod is hinged to the push rod. The pressing shaft is arranged in the limiting sleeve of the support in a sliding mode, and the pressing shaft corresponds to the positioning groove. By means of the linkage design of the lever type pushing limiting mechanism and the pressing shaft, continuous and stable exposure of the clamping spring groove is achieved through the mechanical self-locking principle, the labor intensity of operators is remarkably reduced, the spring reset risk is avoided, and the clamping spring groove can be stably exposed while high-precision coaxial positioning of the pressing shaft and the clamping spring groove is guaranteed. And the rapid clamping requirements of shaft parts of multiple specifications are met, and the convenience, safety and production efficiency of assembly work are comprehensively improved.

Description

Technical Field

[0001] This utility model relates to a clamp for mounting snap rings on shaft parts, belonging to the field of snap ring mounting technology. Background Technology

[0002] When the snap ring groove of a shaft part is in the axially embedded position, due to the elastic energy storage characteristics of the spring retainer, the operator needs to continuously apply axial thrust during the assembly process to overcome the spring preload and expose the snap ring groove to the assembly station.

[0003] This manual assembly method requires operators to maintain a constant force to keep the snap ring slot exposed, which obviously increases the workload of workers. It also requires additional personnel to install the snap ring. In batch production mode, the single-station operation cycle is forcibly broken down into two independent stations: spring holding and snap ring pressing, resulting in an increase in the manpower configuration of the production line. In addition, due to the lack of a force maintenance mechanism, the snap ring slot is prone to retraction due to spring reset during operation intervals, which may cause the snap ring to fail to be installed smoothly or to accidentally fall out, resulting in structural damage. Utility Model Content

[0004] To address the problems existing in the background art, this utility model provides a clamp for mounting snap rings on shaft parts.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a clamping fixture for circlips of shaft parts, comprising a base plate, a first positioning block, a pressure shaft, a stop block, a second positioning block, a bracket, and a pushing and limiting mechanism; the upper end of the base plate is fixedly connected to the first positioning block, the second positioning block, and the lower end of the bracket, respectively; an L-shaped stop block is fixed to the side wall of the second positioning block; the upper end of the vertical plate of the stop block, the upper end of the first positioning block, and the upper end of the second positioning block are provided with coaxially arranged positioning grooves; the upper end of the bracket is fixedly mounted with a pushing and limiting mechanism; the pushing and limiting mechanism is fixedly mounted with one end of the horizontally arranged pressure shaft; the pressure shaft is slidably arranged in the limiting sleeve of the bracket; and the pressure shaft and the positioning groove are correspondingly arranged.

[0006] The pressure shaft and the positioning groove are coaxially arranged.

[0007] The pushing and limiting mechanism includes a push rod, a first connecting rod, a mounting base, a second connecting rod, and a handle; the lower end of the handle is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the mounting base, the middle part of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to one end of a horizontally arranged push rod, the middle part of the push rod is slidably limited to the other end of the mounting base, the other end of the push rod is correspondingly arranged with the pressure shaft, the first connecting rod is limited and fixedly connected to the mounting base, and the mounting base is fixed to the upper end of the bracket.

[0008] An adjustment mechanism is provided between the other end of the push rod and the pressure shaft.

[0009] The adjusting mechanism includes a threaded rod and a nut; the other end of the push rod is provided with a threaded hole, which is threadedly connected to one end of the threaded rod, and a nut is threadedly connected to the outer side of the threaded rod. The end face of the nut is rotatably connected to the end face of the other end of the push rod, and the other end of the threaded rod is detachably fixedly connected to the pressure shaft.

[0010] A bushing is provided between the pressure shaft and the limiting sleeve.

[0011] The mounting fixture also includes a snap ring pickup mechanism, which includes a pressure head, a magnet, and a baffle. The lower end of the pressure head is fixedly connected to the baffle, and a magnet is fixed between the baffle and the pressure head. Both the lower end face of the baffle and the lower end face of the pressure head are provided with pickup grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a lever-driven linkage design between the limiting mechanism and the pressure shaft to achieve continuous and stable exposure of the snap ring groove using a mechanical self-locking principle, significantly reducing the labor intensity of operators and avoiding the risk of spring reset. The integrated positioning block assembly and limiting sleeve constitute a precision guiding system, which, together with an adjustable threaded connection mechanism, ensures high-precision coaxial positioning of the pressure shaft and snap ring groove while accommodating the rapid clamping requirements of various shaft parts. The magnetic snap ring pickup mechanism, through the synergistic action of the pressure head and the baffle, enables single-handed picking and placing and precise positioning of the snap ring, allowing the spring holding process and the snap ring installation process to be completed simultaneously, comprehensively improving the convenience, safety, and production efficiency of assembly operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 DD sectional view;

[0016] Figure 3 yes Figure 2 AA section view;

[0017] Figure 4 This is a schematic diagram of the block's structure;

[0018] Figure 5 yes Figure 4 A sectional view;

[0019] Figure 6 yes Figure 4 Top view

[0020] Figure 7 This is a structural schematic diagram of the pressure shaft;

[0021] Figure 8This is a schematic diagram of the threaded rod.

[0022] Figure 9 This is a schematic diagram of the snap ring pickup mechanism;

[0023] Figure 10 yes Figure 9 Side view. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0025] A clamping fixture for circlips of shaft parts includes a base plate 1, a first positioning block 2, a pressure shaft 11, a stop block 5, a second positioning block 6, a bracket 14, and a pushing and limiting mechanism. The upper end of the base plate 1 is fixedly connected to the lower end of the first positioning block 2, the second positioning block 6, and the bracket 14 by corresponding screws and cylindrical pins. An L-shaped stop block 5 is fixed to the side wall of the second positioning block 6. The upper end of the vertical plate of the stop block 5, the upper end of the first positioning block 2, and the upper end of the second positioning block 6 are provided with coaxially arranged positioning grooves 3. The upper end of the bracket 14 is fixedly mounted with a pushing and limiting mechanism. The pushing and limiting mechanism is fixedly mounted with one end of the horizontally arranged pressure shaft 11. The pressure shaft 11 is slidably arranged in the limiting sleeve 13 of the bracket 14, and the pressure shaft 11 is correspondingly arranged with the positioning groove 3.

[0026] The pressure shaft 11 is coaxially arranged with the positioning groove 3 to ensure the coaxial stability of the push.

[0027] The pushing and limiting mechanism includes a push rod 4, a first connecting rod 7, a mounting base 8, a second connecting rod 15, and a handle 16. The lower end of the handle 16 is hinged to one end of the first connecting rod 7 by a pin, the other end of the first connecting rod 7 is hinged to one end of the mounting base 8 by a pin, the middle part of the first connecting rod 7 is hinged to one end of the second connecting rod 15 by a pin, the other end of the second connecting rod 15 is hinged to one end of the horizontally arranged push rod 4 by a pin, the middle part of the push rod 4 is slidably limited to the other end of the mounting base 8, and the other end of the push rod 4 is correspondingly arranged with the pressure shaft 11. The first connecting rod 7 and the mounting base 8 are fixedly limited. Specifically, a protrusion is fixed on the first connecting rod 7, and a groove is provided on the mounting base 8. When the present invention is working, the protrusion is engaged in the groove. When the handle 16 drives the protrusion to separate from the groove, the parts can be replaced. The mounting base 8 is fixed to the upper end of the bracket 14.

[0028] An adjustment mechanism is provided between the other end of the push rod 4 and the pressure shaft 11 to accommodate the needs of parts of different lengths.

[0029] The adjusting mechanism includes a threaded rod 9 and a nut 10; the other end of the push rod 4 is provided with a threaded hole along its axial direction, the threaded hole is threadedly connected to one end of the threaded rod 9, the outer side of the threaded rod 9 is threadedly connected to the nut 10, the end face of the nut 10 is rotatably connected to the end face of the other end of the push rod 4 through a bearing, and the other end of the threaded rod 9 is detachably fixed to the pressure shaft 11 through an interference fit or bolts.

[0030] A bushing 12 is provided between the pressure shaft 11 and the limiting sleeve 13 to extend the service life of the pressure shaft 11.

[0031] The mounting fixture also includes a snap ring pickup mechanism, which includes a pressure head 17, a magnet 18, and a baffle 19. The upper end of the pressure head 17 is connected to a press machine via a nut 22, and the lower end of the pressure head 17 is fixedly connected to the baffle 19 via corresponding screws and cylindrical pins. A magnet 18 is fixed between the baffle 19 and the pressure head 17. The lower end face of both the baffle 19 and the lower end face of the pressure head 17 are provided with snap ring-shaped pickup grooves.

[0032] The working process of this utility model is as follows:

[0033] Fix the shaft-like parts to positioning blocks 1 (2) and 2 (6), so that the spring on the shaft-like parts abuts against the vertical plate of the stop block 5. Then push the handle 16, and under the action of connecting rod 1 (7) and connecting rod 2 (15), drive the push rod 4 to push the shaft-like parts axially through the pressure shaft 11, pushing the snap ring groove on the shaft-like parts out to the outside of the limiting sleeve 13 (due to the spring force on the parts, the snap ring groove will be inside the parts, making it inconvenient to install the snap ring). Then, use a hand hammer or snap ring picking mechanism to install the snap ring into the snap ring groove of the shaft-like parts. The operation is convenient, time-saving, labor-saving, and improves production efficiency.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clamping fixture for mounting snap rings on shaft-type parts, characterized in that: The system includes a base plate (1), a positioning block 1 (2), a pressure shaft (11), a stop block (5), a positioning block 2 (6), a bracket (14), and a pushing and limiting mechanism. The upper end of the base plate (1) is fixedly connected to the lower end of the positioning block 1 (2), the positioning block 2 (6), and the bracket (14). The side wall of the positioning block 2 (6) is fixed with an L-shaped stop block (5). The upper end of the vertical plate of the stop block (5), the upper end of the positioning block 1 (2), and the upper end of the positioning block 2 (6) are provided with a coaxially arranged positioning groove (3). The upper end of the bracket (14) is fixedly installed with a pushing and limiting mechanism. The pushing and limiting mechanism is fixedly installed with one end of the horizontally arranged pressure shaft (11). The pressure shaft (11) is slidably arranged in the limiting sleeve (13) of the bracket (14). The pressure shaft (11) and the positioning groove (3) are arranged correspondingly.

2. The circlip mounting fixture for shaft parts according to claim 1, characterized in that: The pressure shaft (11) and the positioning groove (3) are coaxially arranged.

3. A clamping fixture for mounting snap rings on shaft parts according to claim 1, characterized in that: The pushing and limiting mechanism includes a push rod (4), a connecting rod one (7), a mounting base (8), a connecting rod two (15), and a handle (16); the lower end of the handle (16) is hinged to one end of the connecting rod one (7), the other end of the connecting rod one (7) is hinged to one end of the mounting base (8), the middle part of the connecting rod one (7) is hinged to one end of the connecting rod two (15), the other end of the connecting rod two (15) is hinged to one end of the horizontally arranged push rod (4), the middle part of the push rod (4) is slidably limited to the other end of the mounting base (8), the other end of the push rod (4) is correspondingly arranged with the pressure shaft (11), the connecting rod one (7) is limited and fixedly connected to the mounting base (8), and the mounting base (8) is fixed to the upper end of the bracket (14).

4. A clamping fixture for mounting circlips on shaft parts according to claim 3, characterized in that: An adjustment mechanism is provided between the other end of the push rod (4) and the pressure shaft (11).

5. A clamping fixture for mounting snap rings on shaft parts according to claim 4, characterized in that: The adjusting mechanism includes a threaded rod (9) and a nut (10); the other end of the push rod (4) is provided with a threaded hole, the threaded hole is threadedly connected to one end of the threaded rod (9), the outer side of the threaded rod (9) is threadedly connected to the nut (10), the end face of the nut (10) is rotatably connected to the end face of the other end of the push rod (4), and the other end of the threaded rod (9) is detachably fixedly connected to the pressure shaft (11).

6. A clamping fixture for mounting snap rings on shaft parts according to claim 1, characterized in that: A bushing (12) is provided between the pressure shaft (11) and the limiting sleeve (13).

7. A clamping fixture for mounting snap rings on shaft parts according to claim 5 or 6, characterized in that: The mounting fixture also includes a snap ring pickup mechanism, which includes a pressure head (17), a magnet (18), and a baffle (19). The lower end of the pressure head (17) is fixedly connected to the baffle (19), and a magnet (18) is fixed between the baffle (19) and the pressure head (17). Both the lower end face of the baffle (19) and the lower end face of the pressure head (17) are provided with pickup grooves.

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