Multi-plunger assembly buckling tool

Abstract

The utility model discloses a multi-plunger assembly buckling and pressing tool, relates to the technical field of plunger and sliding shoe assembly, and solves the problems that in the prior art, assembly is troublesome, and extrusion forming machining efficiency is low. The shell is provided with a plurality of buckling cavities, buckling assemblies are inserted in the buckling cavities in a sliding mode, plungers and sliding shoes are arranged between the buckling assemblies and the buckling cavities in a matched mode, a buckling cover plate is arranged on the shell in a sliding mode, and when the buckling cover plate moves towards the shell, the buckling assemblies can be pushed to extrude the sliding shoes so that the sliding shoes can be buckled with the plungers. The multiple buckling cavities are formed in the shell, the buckling assemblies are arranged in the buckling cavities, the plungers and the sliding shoes can be fixedly matched, the buckling cover plate arranged on the shell in a sliding mode pushes the buckling assemblies to extrude the sliding shoes to enable the sliding shoes to be buckled with the plungers when sliding, buckling of the multiple sets of plungers and the sliding shoes can be completed at the same time, cost is reduced, and efficiency is improved. The buckling assembly is inserted in the buckling cavity in a sliding mode, all the components are connected easily, dismounting and mounting are convenient and fast, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger and sliding shoe assembly, in particular to a multi-plunger component buckling tool. Background Art

[0002] The slipper-type plunger assembly includes a plunger and a slipper, and is an important component of the plunger pump. The plunger head is a ball head, and the slipper includes a flange-type connecting plate and a plunger connecting part. The plunger connecting part has a spherical cavity that is recessed inward. After being assembled with the plunger, the plunger connecting part wraps the ball head, and the ball head can rotate inside the plunger connecting part. At present, when assembling the slipper and the plunger, the plunger is generally fixed, the slipper is placed on the plunger, and then the slipper is directly pressed and closed with the plunger by providing pressure through the pressure head of the pressing mechanism.

[0003] The Chinese invention patent with publication number CN113664088A discloses a plunger and shoe closing tool, including a shell with an outlet and a hydraulic oil inlet; a piston and a shoe are provided in the shell, a plunger is inserted in the piston, and the ball head of the plunger presses the shoe against the shell; a forming sleeve is provided between the piston and the shoe, and the piston squeezes the shoe through the forming sleeve. The invention applies pressure to the shoe by hydraulic means, and the pressure application process is easier to control, and the tool has a simple structure, small size, and is not prone to failure. However, in the invention, although the process is easy to control by hydraulic extrusion, there is a problem of cumbersome assembly process before extrusion molding. It can only perform closing processing on a pair of plungers and shoes at the same time, and the extrusion molding efficiency is low. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a multi-plunger assembly pressing tool, which solves the problems of complicated assembly and low extrusion molding processing efficiency in the prior art.

[0005] The technical solution of the utility model is achieved as follows: a multi-plunger assembly crimping tool, including a shell, a plurality of crimping cavities are provided on the shell, a crimping assembly is slidably inserted in the crimping cavity, a plunger and a sliding shoe are cooperated between the crimping assembly and the crimping cavity, a crimping cover plate is slidably provided on the shell, and when the crimping cover plate moves toward the shell, it can push the crimping assembly to squeeze the sliding shoe so that the sliding shoe and the plunger are buckled.

[0006] Preferably, the crimping assembly comprises a piston slidably arranged in the crimping cavity, a forming sleeve is inserted into the end of the piston, and the forming sleeve cooperates with the sliding shoe through the crimping contact surface.

[0007] Preferably, the forming sleeve has various specifications, and forming sleeves of different specifications can be replaceably inserted at the end of the piston.

[0008] Preferably, the forming sleeve comprises an annular sleeve composed of two semi-ring bodies, and the buckling contact surface is arranged on the inner annular surface of the semi-ring body.

[0009] Preferably, a plunger guide hole is provided at the piston axis, the plunger is inserted into the plunger guide hole, a forming sleeve hole connected to the plunger guide hole is provided at the piston end, the inner diameter of the forming sleeve hole is larger than the inner diameter of the plunger guide hole, and the forming sleeve is plugged into the forming sleeve hole.

[0010] Preferably, an air hole is provided at the bottom of the buckling cavity. An adjustment gasket is provided between the sliding shoe and the buckling cavity.

[0011] Furthermore, the adjustment gasket has various specifications, and the adjustment gaskets of different specifications can be replaceably arranged in the buckling cavity.

[0012] Preferably, the housing is an annular housing, and a plurality of buckling cavities are circumferentially arranged on the annular housing at equal intervals. The buckling cover plate includes a guide column that is plugged and slidably matched with the annular housing, and the guide column is connected to the circular cover plate.

[0013] The beneficial effects of the utility model are as follows: by setting a shell to provide an installation support foundation, by setting a plurality of buckling cavities on the shell and setting a buckling assembly in the buckling cavity, the plunger and the sliding shoe can be fixedly matched, and by sliding the buckling cover plate set on the shell, the buckling assembly is pushed to squeeze the sliding shoe during sliding so that the sliding shoe and the plunger are buckled, so that multiple groups of plungers and sliding shoes can be buckled at the same time, and at the same time, the consistency of force and molding between multiple plunger assemblies can be better achieved, reducing costs and increasing efficiency, and solving the problem of low efficiency caused by the existing molding tooling that can only perform buckling molding of a single group of plungers and sliding shoes at the same time. In addition, the buckling assembly is slidably plugged in the buckling cavity, and the connection between the components is simple, which is convenient and quick to disassemble and assemble, thereby improving efficiency. Furthermore, the shell and the piston are universal parts, and different specifications of plungers and sliding shoes can be buckled and molded by replacing different molding sleeves, avoiding waste caused by tooling being too exclusive. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the housing structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the AA section;

[0018] Figure 4 This is a schematic diagram of the piston structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the molding sleeve of the utility model;

[0020] Figure 6 This is a schematic diagram of the plug-in matching state of the forming sleeve and the piston of the utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the adjusting gasket of the utility model.

[0022] In the figure: 1: housing, 2: buckling chamber, 3: buckling assembly, 4: plunger, 5: sliding shoe, 6: buckling cover, 7: piston, 8: forming sleeve, 9: buckling contact surface, 10: plunger guide hole, 11: forming sleeve hole, 12: air hole, 13: adjustment gasket, 14: guide column, 15: circular cover. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , 2 As shown in Figure 3, embodiment 1, a multi-plunger assembly crimping tool, includes a shell 1, and a plurality of crimping cavities 2 are provided on the shell 1. In this embodiment, the shell 1 is an annular shell, and the shell provides an installation support base for the entire tool. In this embodiment, a total of nine crimping cavities are provided on the annular shell, and the nine crimping cavities 2 are provided on the annular shell at equal intervals in the circumferential direction. The nine crimping cavities 2 are all provided with a crimping assembly 3 for sliding insertion. A plunger 4 and a sliding shoe 5 are provided between the crimping assembly 3 and the crimping cavity 2. The crimping assembly and the crimping cavity jointly limit and fix the plunger and the sliding shoe. A crimping cover plate 6 is provided for sliding movement on the shell 1. When the crimping cover plate 6 moves toward the shell 1, it can push the crimping assembly 3 to squeeze the sliding shoe 5 so that the sliding shoe 5 is fastened with the plunger 4.

[0025] Specifically, the buckling cover plate 6 in this embodiment includes a guide column 14 that is plugged and slidably matched with the annular shell, and the guide column can play a guiding role. The guide column 14 is connected to the circular cover plate 15. In this embodiment, the circular cover plate can be matched with nine groups of buckling components at the same time. When in use, the plunger, the sliding shoe and the buckling component are first assembled in the nine buckling cavities, and then the tooling is installed on the press. The press pushes the buckling cover plate to the shell, and the buckling of nine groups of plungers and sliding shoes can be completed at the same time. At the same time, the consistency of force and molding between the nine plunger components can be better achieved, which can solve the problem of low efficiency caused by the existing molding tooling that can only perform buckling molding of a single group of plungers and sliding shoes at the same time, and reduce the production and processing costs.

[0026] Furthermore, in the present embodiment, the crimping assembly is slidably inserted in the crimping cavity, the connection between the components is simple, and the assembly and disassembly is convenient and quick, thereby improving efficiency.

[0027] Embodiment 2, a multi-plunger assembly pressing tool, such as Figure 4 , 5 As shown in , 6, on the basis of Example 1, the crimping assembly 3 includes a piston 7 slidably arranged in the crimping cavity 2, and a forming sleeve 8 is inserted into the end of the piston 7, and the forming sleeve 8 cooperates with the sliding shoe 5 through the crimping contact surface 9.

[0028] The forming sleeve 8 has a variety of specifications, and the forming sleeves 8 of different specifications can be replaced and inserted at the end of the piston 7. The forming sleeve 8 includes an annular sleeve composed of two semi-ring bodies, and the buckling contact surface 9 is arranged on the inner ring surface of the semi-ring body. Specifically, the diameter of the inner ring surface of the forming sleeves of different specifications is different, and the distance from the buckling contact surface to the end of the forming sleeve is different, so as to meet the molding between the sliding shoes and plungers of different diameters and lengths. As a further specific method, the buckling contact surface is a spherical surface. In this embodiment, the forming sleeve adopts a two-half structural design, which is convenient for assembly and disassembly. It can be buckled on the outside of the connection position between the plunger and the sliding shoe during assembly. At the same time, the buckling contact surface of the forming sleeve adopts a proportional design with the plunger ball head. The buckling process greatly stabilizes the double-layer fitting surface of the inner and outer walls of the sliding shoe, and can buckle a component product with good fitting between the sliding shoe and the plunger ball head. Within the allowable range of the space size of the forming sleeve, it is only necessary to change the buckling contact surface shape of different forming sleeves to buckle different specifications of ball head plunger assemblies, without the need to design the overall tooling, which greatly saves costs. In this embodiment, the shell and the piston are both universal parts, and plungers and sliding shoes of different specifications can be pressed and formed by replacing different molding sleeves, thereby avoiding waste caused by overly specialized tooling. Compared with existing tooling, the structure of this tooling is relatively simple, which reduces the difficulty of processing.

[0029] In addition, in this embodiment, since the pressing assembly 3 is a combined structure of a piston and a forming sleeve, the structure can align the outer circle grinding end face and adjust the gap. Since corresponding tolerances are generated on the parts during the actual part processing process, the cumulative tolerance of the assembly is eliminated by controlling the allowance by the grinding end face, so that the 9 groups of plungers and sliding shoes can achieve better consistency during molding.

[0030] As a further implementation, in this embodiment, a plunger guide hole 10 is provided at the axis of the piston 7, the plunger 4 is inserted into the plunger guide hole 10, and a forming sleeve hole 11 is provided at the end of the piston 7 and communicates with the plunger guide hole 10. The inner diameter of the forming sleeve hole 11 is larger than the inner diameter of the plunger guide hole 10, and the forming sleeve 8 is plugged and arranged on the forming sleeve hole 11. When in use, it is only necessary to adjust the press to provide different extrusion forces, so as to meet various pressure use conditions. During the buckling process, the piston plays a guiding role, limits the forming sleeve, and also plays a positioning and guiding role for the buckled product.

[0031] Embodiment 3, a multi-plunger assembly buckling tool, based on embodiment 2, as Figure 3 , 7 As shown, an air hole 12 is provided at the bottom of the buckling cavity 2. The air hole is provided to exhaust air during the buckling process and maintain the air pressure balance inside and outside the buckling cavity. An adjustment gasket 13 is provided between the slipper 5 and the buckling cavity 2. The adjustment gasket 13 has a variety of different thickness specifications, and the adjustment gaskets 13 of different thickness specifications can be replaceably arranged in the buckling cavity 2 to meet the installation of slippers of different specifications. The adjustment gasket has a simple structure. In actual use, the gap between the buckling plunger ball head and the slipper is controlled by adjusting the gasket thickness H. In the process of adjusting the thickness of the gasket structure, a surface grinder is used to control the gasket thickness H, thereby accurately controlling the clearance of the plunger slipper.

[0032] The specific usage of the above embodiment is as follows:

[0033] 1: Put the adjustment shim and the sliding shoe together into the buckling cavity of the housing.

[0034] 2: Then clamp the paired forming sleeves on the piston, and then install them into the buckling cavity to match with the sliding shoe.

[0035] 3: Place the plunger into the piston and the ball head of the plunger into the sliding shoe.

[0036] 4: Then install the buckled cover into the housing and push it until it contacts the end of the piston. At this time, there is a gap between the end of the plunger and the buckled cover.

[0037] 5: Use a press to push the buckling cover plate. The piston moves to the left due to the force, pushing the forming sleeve. The buckling contact surface 9 of the forming sleeve then squeezes the sliding shoe to cause deformation. When the compression amount or clamping force reaches the set value, it is maintained for a certain time to fix the shape.

[0038] 6: After the crimping is completed, disassembly can be carried out.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-plunger assembly pressing tool, characterized in that: The invention comprises a shell (1), wherein a plurality of buckling cavities (2) are provided on the shell (1), a buckling assembly (3) is slidably inserted in the buckling cavity (2), a plunger (4) and a sliding shoe (5) are provided between the buckling assembly (3) and the buckling cavity (2), and a buckling cover plate (6) is slidably provided on the shell (1), and when the buckling cover plate (6) moves toward the shell (1), it can push the buckling assembly (3) to squeeze the sliding shoe (5) so that the sliding shoe (5) is buckled with the plunger (4).

2. The multi-plunger assembly crimping tool according to claim 1, characterized in that: The buckling assembly (3) comprises a piston (7) slidably arranged in the buckling cavity (2), the end of the piston (7) being plugged with a forming sleeve (8), and the forming sleeve (8) is matched with the sliding shoe (5) via a buckling contact surface (9).

3. The multi-plunger assembly pressing tool according to claim 2, characterized in that: The forming sleeve (8) has a variety of specifications, and the forming sleeves (8) of different specifications can be replaceably plugged into the end of the piston (7).

4. The multi-plunger assembly pressing tool according to claim 3, characterized in that: The forming sleeve (8) comprises an annular sleeve composed of two semi-ring bodies, and the buckling contact surface (9) is arranged on the inner ring surface of the semi-ring body.

5. The multi-plunger assembly pressing tool according to any one of claims 2 to 4, characterized in that: A plunger guide hole (10) is provided at the axis of the piston (7), the plunger (4) is inserted into the plunger guide hole (10), and a forming sleeve hole (11) communicating with the plunger guide hole (10) is provided at the end of the piston (7), the inner diameter of the forming sleeve hole (11) is larger than the inner diameter of the plunger guide hole (10), and the forming sleeve (8) is plugged into the forming sleeve hole (11).

6. The multi-plunger assembly crimping tool according to claim 5, characterized in that: The bottom of the buckling cavity (2) is provided with an air hole (12).

7. The multi-plunger assembly crimping tool according to any one of claims 1 to 4 and 6, characterized in that: An adjustment gasket (13) is provided between the sliding shoe (5) and the buckling cavity (2).

8. The multi-plunger assembly crimping tool according to claim 7, characterized in that: The adjusting gasket (13) has a variety of specifications, and the adjusting gaskets (13) of different specifications can be replaceably arranged in the buckling cavity (2).

9. The multi-plunger assembly pressing tool according to claim 1 or 8, characterized in that: The housing (1) is an annular housing, and a plurality of pressing cavities (2) are arranged on the annular housing at equal intervals in the circumferential direction.

10. The multi-plunger assembly crimping tool according to claim 9, characterized in that: The buckling cover plate (6) comprises a guide column (14) which is plugged and slidably matched with the annular housing, and the guide column (14) is connected to the circular cover plate (15).

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