Piston assembly fixture

Abstract

The present invention relates to a piston assembly fixture, comprising a first base plate, on which a base and a column are respectively provided. The base is used to connect with a portion of the piston to be assembled, the proximal end of the column is connected to a pin holder via a clamping block, the clamping block is detachably connected to a locking card for positioning with another portion of the piston to be assembled via the locking card; the pin holder is detachably connected to a pin for connecting with another portion of the piston to be assembled via the pin. The provision of the base facilitates the positioning and installation of the piston to be assembled, and the provision of a slider and a guide rail enables the base to be movable, allowing an operator to conveniently and quickly push the base into position.

Description

Technical Field

[0001] The invention relates to the field of clamps, in particular to a piston assembly clamp. Background Art

[0002] At present, traditional piston components are assembled by using a cylinder to press down a spring seat. Pistons with more complex structures require operators to use a torque wrench to tighten the lock nut with greater force. This locking method is time-consuming and labor-intensive, which not only increases the labor intensity of operators but also reduces the company's assembly efficiency. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a piston assembly fixture to solve one or more problems in the prior art.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] The piston assembly fixture includes a first base plate, on which a base and a column are respectively arranged. The base is used to connect with a part of the piston to be assembled. The proximal end of the column is connected to the pin seat through a clamping block. The clamping block is detachably connected to a locking card for positioning with the other part of the piston to be assembled through the locking card; the pin seat is detachably connected to a pin for connecting with the other part of the piston to be assembled through the pin.

[0006] Furthermore, the base includes a base body, the proximal end of the base body has a first protrusion extending axially, an opening is provided on the first protrusion, the distal end of the opening extends to the base body, and at least one locking hole is provided on the base body.

[0007] Furthermore, a first latch opening is provided on the latch block.

[0008] Furthermore, the locking card includes a card body, and a second slot is provided on the card body.

[0009] Furthermore, the latch includes a pin body, a proximal end of the pin body is connected to the limiting portion, a proximal end of the limiting portion is connected to the hand-held portion, and a distal end of the pin body is connected to the assembly block via a second protrusion.

[0010] Furthermore, the outer diameter of the limiting portion is larger than the outer diameter of the pin body.

[0011] Furthermore, the hand-held portion, the limiting portion, the pin body, the second protruding portion and the assembly block are coaxially arranged.

[0012] Furthermore, the base is arranged on a second bottom plate, and the second bottom plate is movably arranged on the first bottom plate through a movable component.

[0013] Furthermore, the movable component includes at least one guide rail and a slider slidably connected to the guide rail.

[0014] Furthermore, at least one first handle is provided on the first bottom plate.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0016] (1) The setting of the base can conveniently realize the positioning and installation of the piston to be assembled, and the setting of the slider and the guide rail realizes the movement of the base, which can conveniently and quickly enable the operator to push the base into place.

[0017] (2) By connecting the card block to the column and providing a first bayonet hole on the card block, the locking card can be detachably connected. At the same time, second bayonet holes of different sizes can be provided on the locking card to meet the assembly of different locking nuts, thereby adapting to the assembly of various pistons.

[0018] (3) The provision of the latch and the locking card can satisfy the need for fixing the position of the piston to be assembled in the axial and radial directions, making the transfer of the locking nut on the assembled piston quick and convenient, thereby improving the assembly efficiency, greatly shortening the assembly time of a single part, and ensuring the stability and reliability of the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a piston assembly fixture according to an embodiment of the present invention is shown.

[0020] Figure 2 A schematic structural diagram of a latch in a piston assembly fixture according to an embodiment of the present invention is shown.

[0021] Figure 3 A schematic structural diagram of a base in a piston assembly fixture according to an embodiment of the present invention is shown.

[0022] Figure 4 A schematic cross-sectional structural diagram of a base in a piston assembly fixture according to an embodiment of the present invention is shown.

[0023] Figure 5 A schematic structural diagram of a locking card in a piston assembly fixture according to an embodiment of the present invention is shown.

[0024] Figure 6 A schematic structural diagram of a clamping block in a piston assembly fixture according to an embodiment of the present invention is shown.

[0025] Markings in the accompanying drawings: 100, support block; 101, first base plate; 102, first handle; 2, piston to be assembled; 201, locking nut; 300, guide rail; 301, slider; 302, second base plate; 303, second handle; 4, base; 400, base body; 401, opening; 402, first protrusion; 403, locking hole; 500, column; 501, block; 502, first bayonet; 503, pin seat; 6, latch; 600, hand-held part; 601, limit part; 602, pin body; 603, second protrusion; 604, assembly block; 7, locking knob; 8, locking card; 801, card body; 802, second bayonet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the piston assembly fixture proposed by the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structure, proportion, size, etc. shown in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention, so they have no technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0027] In order to more clearly describe the structure of the piston assembly fixture, the present invention defines the terms "distal end" and "proximal end". Specifically, the "distal end" refers to the end away from the operator, and the "proximal end" refers to the end close to the operator. Figure 1 For example, Figure 1 The upper end of the center column 500 is the proximal end. Figure 1 The lower end of the center column 500 is the distal end.

[0028] Please refer to Figure 1 The piston assembly fixture of this embodiment includes a first base plate 101, on which a base 4 and a column 500 are respectively disposed. At least one support block 100 is disposed at the bottom of the first base plate 101 to ensure the stability and flatness of the first base plate 101 and the entire structure on the installation surface. At least one first handle 102 is also connected to the first base plate 101 to ensure convenient placement and removal by the operator.

[0029] Please continue to refer to Figure 1Specifically, the base 4 is disposed on a second base plate 302, which is movably disposed on the first base plate 101 via a movable assembly. Specifically, the movable assembly includes a pair of guide rails 300 and sliders 301 slidably connected to each guide rail 300. Each slider 301 is connected to the bottom of the second base plate 302. To ensure convenient movement of the second base plate 302, a second handle 303 is also connected to the second base plate 302. The second handle 303 allows the second base plate 302 and the base 4 connected to the second base plate 302 to slide back and forth conveniently and quickly.

[0030] Please continue to refer to Figure 1 、 Figure 3 as well as Figure 4 The base 4 is used to position a portion of the piston 2 to be assembled, specifically, to position and connect with the distal end of the piston 2 to be assembled. The base 4 includes a base body 400. The proximal end of the base body 400 has a first protrusion 402 extending axially. The first protrusion 402 defines an opening 401. The distal end of the opening 401 extends into the base body 400. The base body 400 also defines at least one locking hole 403. The opening 401 is coaxially arranged with the base body 400 and the first protrusion 402.

[0031] Please continue to refer to Figure 1 and Figure 5 The distal end of the column 500 is fixed to the first base plate 101, and the proximal end of the column 500 is connected to the clamping block 501, which is connected to the pin holder 503. The clamping block 501 is detachably connected to the locking clamp 8 for positioning with the other part of the piston 2 to be assembled via the locking clamp 8. The pin holder 503 is detachably connected to the latch 6 for connecting with the other part of the piston 2 to be assembled via the latch 6. The pin holder 503 is provided with a pin hole for inserting the latch 6.

[0032] For details, please continue to refer to Figure 1 A first bayonet 502 is provided on the card block 501, and the first bayonet 502 is used to engage with the outer side of the card body 801 in the locking card 8. Preferably, the first bayonet 502 is rectangular, and the outer side of the card body 801 is also a rectangle matching the first bayonet 502.

[0033] For details, please refer to Figure 5 The locking card 8 includes a card body 801, and a second bayonet 802 is opened on the card body 801. The second bayonet 802 is adapted to the shape of the locking nut 201 on the piston 2 to be assembled. Preferably, the second bayonet 802 is hexagonal and the locking nut 201 is also a hexagonal nut.

[0034] Correspondingly, in order to meet the different sizes of the locking nuts 201 on the piston 2 to be assembled, the size of the second bayonet 802 on the locking card 8 can also be different, that is, the shape of the locking card 8 is fixed and can be connected with the first bayonet 502, but the shape and size of the second bayonet 802 on the locking card 8 are variable, which can meet the selection and assembly of different locking nuts 201.

[0035] The specific structure of the latch 6 is described below:

[0036] The latch 6 comprises a pin body 602, the proximal end of which is connected to a stopper 601, which is also connected to a handle 600. The distal end of the pin body 602 is connected to an assembly block 604 via a second protrusion 603. The outer diameter of the stopper 601 is larger than that of the pin body 602. After the pin body 602 is inserted into the pin hole, the stopper 601 restricts further insertion of the pin body 602, allowing the pin body 602 to be supported on the surface of the pin seat 503 by the stopper 601. After insertion, the pin body 602 is tightened and secured by the locking knob 7. The handle 600, stopper 601, pin body 602, second protrusion 603, and assembly block 604 are coaxially arranged. The second protrusion 603 is configured to abut against the screw portion of the piston 2 to be assembled, while the assembly block 604 is configured to extend into the interior of the screw and engage with it.

[0037] The specific working process of the present invention is as follows:

[0038] Please refer to Figures 1 to 5 , first, place the distal end of the piston 2 to be assembled into the opening 401 of the base 4, and then push the base 4 to be close to the column 500 through the second handle 303. Since the base 4 is connected to the second bottom plate 302, and the second bottom plate 302 is slidably connected to the guide rail 300 through the slider 301, the base 4 can be easily slid close to the column 500, and then the card body 801 of the locking card 8 is placed on the proximal end of the piston 2 to be assembled. The proximal end of the piston 2 to be assembled has a groove to accommodate a part of the card body 801. The height of the card body 801 is greater than the depth of the groove, so that the card body 801 has another part protruding from the groove. At this time, when the piston 2 to be assembled together with the card body 801 is affected by the sliding of the base 4 and approaches the column 500, the outer side of the card body 801 matches the first bayonet 502 of the card block 501, thereby achieving the fixation of the piston 2 to be assembled in the radial position.

[0039] At this time, when the position of the piston 2 to be assembled is fixed, the axis of the locking nut 201 in the piston 2 to be assembled is coaxial with the axis of the pin hole in the pin seat 503. At this time, the pin 6 cooperates with the pin hole, the pin body 602 extends out of the pin hole, and the second protrusion 603 at the distal end of the pin body 602 abuts against the screw part of the piston 2 to be assembled. At the same time, a hexagonal hole is opened inside the screw, so the assembly block 604 connected to the second protrusion 603 can also be adapted to the hexagonal hole, so that the piston 2 to be assembled is connected to the pin 6, so that the axial direction of the piston 2 to be assembled is fixed.

[0040] After the piston 2 to be assembled is fixed in both axial and radial directions, the isomorphic wrench can apply a relatively large torque to complete the locking of the locking nut.

[0041] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A piston assembly fixture comprising a first base plate, characterized in that: A base and a column are respectively provided on the first bottom plate, the base being used to connect with a part of the piston to be assembled, the proximal end of the column being connected to the pin seat via a clamping block, the clamping block being detachably connected to a locking card for positioning with the other part of the piston to be assembled via the locking card; the pin seat being detachably connected to a latch for connecting with the other part of the piston to be assembled via the latch; The base is arranged on the second bottom plate, and the second bottom plate is movably arranged on the first bottom plate through a movable component; The base includes a base body, a proximal end of the base body having a first protrusion extending in the axial direction, an opening being defined in the first protrusion, a distal end of the opening extending to the base body, and at least one locking hole being defined in the base body; The card block is provided with a first card opening; The locking card includes a card body, and a second bayonet is formed on the card body, and the second bayonet is adapted to the shape of the locking nut on the piston to be assembled; The proximal end of the piston to be assembled has a groove that can accommodate a portion of the card body. The height of the card body is greater than the depth of the groove, so that another portion of the card body protrudes from the groove. At this time, when the piston to be assembled and the card body are affected by the sliding of the base and approach the column, the outer side of the card body matches the first bayonet of the clamping block, thereby achieving the fixation of the piston to be assembled in the radial position; The latch includes a pin body, a proximal end of the pin body connected to a limiting portion, a proximal end of the limiting portion connected to a hand-held portion, a distal end of the pin body connected to an assembly block via a second protrusion, the second protrusion being configured to abut against a screw portion on a piston to be assembled, and the assembly block being configured to extend into the interior of the screw and connect with the screw; The outer diameter of the limiting portion is greater than the outer diameter of the pin body; The hand-held portion, the limiting portion, the pin body, the second protruding portion and the assembly block are coaxially arranged.

2. The piston assembly fixture according to claim 1, characterized in that: The movable assembly includes at least one guide rail and a slider slidably connected to the guide rail.

3. The piston assembly fixture according to claim 1, wherein: At least one first handle is also provided on the first bottom plate.

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