Piston compressor shell machining and positioning tool

Abstract

A supporting base is used for supporting and positioning the piston compressor shell, a hydraulic cylinder is arranged in the supporting base, a hydraulic rod of the hydraulic cylinder upwards extends out of the upper end of the piston compressor shell, a limiting ring is arranged at the top end of the hydraulic cylinder, a clamping block is provided with a clamping opening penetrating through the side wall of one side of the clamping block, and the clamping block is provided with a clamping groove. The hydraulic rod is sleeved with the clamping block through the bayonet, the clamping block is fixed to the hydraulic rod through the bayonet and abuts against the lower end of the limiting ring, the pressing plate is provided with a through hole penetrating through a body of the pressing plate, and the pressing plate is arranged on the peripheral side of the hydraulic rod through the through hole in a sleeving mode, abuts against the upper end of the piston compressor shell and abuts against the clamping block which is driven by the hydraulic cylinder to move downwards to press the piston compressor shell. Pressure is transmitted step by step through the limiting ring, the clamping block and the pressing plate, the downward pressing range is enlarged to complete the positioning action, the positioning device is suitable for positioning products with a large width range such as a piston compressor shell, all parts are stably connected in an abutting mode in the downward pressing positioning process, and the positioning stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of machining positioning tooling, in particular to a machining positioning tooling for a piston compressor housing. Background Art

[0002] During the machining process of the piston compressor housing, the corresponding positions on the side walls of the housing are processed according to the processing requirements. In order to ensure the processing stability and processing accuracy, it is necessary to support and fix the upper and lower ends to position the product. Therefore, a tooling with support and pressing functions can be used to achieve the clamping and positioning effect.

[0003] In the prior art, there is a special tool for positioning and clamping a cylinder with application number 202221779073.1, which includes a cylinder body, a positioning and clamping assembly arranged in the cylinder body for clamping a workpiece, and a limiting device for limiting the workpiece. The positioning and clamping assembly includes a piston rod body movably arranged in the cylinder body and a driven assembly movably sleeved on the piston rod body and driven by the piston rod body to position and clamp the workpiece. The limiting device includes a fastening nut fixedly connected to the end of the piston rod body and a gasket arranged between the fastening nut and the workpiece. However, due to the provision of a positioning and clamping assembly in this tooling, it has a more complicated structure, and it directly clamps the workpiece through a gasket. However, the piston compressor housing has a large volume. If a similar method is adopted to directly use the gasket, the gasket needs to occupy a larger horizontal space, and a snap is provided on it to clamp it onto the piston rod body. Due to its large volume, it may cause instability during the downward movement or instability after abutting against the piston compressor housing. On the other hand, under the premise that the gasket is large, the downward force cannot be effectively transmitted to the contact position between the gasket and the piston compressor housing only by using the fastening nut that occupies a smaller position in its center. Utility Model Content

[0004] The purpose of the utility model is to provide a piston compressor housing processing positioning tool, which completes the positioning action by gradually transmitting pressure through a limit ring, a clamping block and a pressure plate and expanding the downward pressing range. It is suitable for positioning products with a large width range such as piston compressor housings, and the various components are stably abutted during the downward pressing positioning process to ensure positioning stability.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a piston compressor housing processing and positioning tool, comprising:

[0006] A support base for supporting and positioning the piston compressor housing,

[0007] A hydraulic cylinder is arranged in the support base, and its hydraulic rod extends upward from the upper end of the piston compressor housing, and a limit ring is provided at the top end.

[0008] The clamping block is provided with a clamping opening penetrating through one side wall thereof, the clamping block is sleeved on the hydraulic rod through the clamping opening to be fixed thereto, and abuts against the lower end of the limiting ring.

[0009] The pressure plate has a through hole penetrating its body. The pressure plate is sleeved on the peripheral side of the hydraulic rod through the through hole, abuts against the upper end of the piston compressor housing, and abuts against the clamping block driven downward by the hydraulic cylinder to press the piston compressor housing.

[0010] As a further optimization, the upper end surface of the support base is provided with a plurality of positioning pins, which can be used to position the piston compressor housing from the lower end surface.

[0011] As a further optimization, the clamping block includes a base plate and a C-shaped clamping buckle. The base plate is provided with a clamping slot. The C-shaped clamping buckle is arranged in the clamping slot and is in interference fit with the upper part of the hydraulic rod. The C-shaped clamping buckle ensures stable installation of the clamping block and the hydraulic rod, avoiding vertical displacement of the clamping block on the hydraulic rod.

[0012] As a further optimization, an embedding groove is provided on the side wall of the slot, the C-shaped buckle is arranged in the embedding groove, and at least partially protrudes from the side wall of the slot. The setting of the embedding groove can prevent the C-shaped buckle from moving vertically up and down in the slot, thereby ensuring stability.

[0013] As a further optimization, the embedding groove is arranged in the middle of the card slot.

[0014] As a further optimization, the C-shaped buckle is made of rubber material, and at least one pair of compressible and resilient protrusions are symmetrically provided on the two opposite side walls close to each other. The protrusions abut against the hydraulic rod, and the cooperation between the pair of protrusions and the C-shaped buckle can prevent the block from horizontally detaching from the hydraulic rod.

[0015] As a further optimization, a positioning groove for positioning the card block is provided at the upper end of the pressure plate to ensure that the position of the card block is stable after abutting against the pressure plate.

[0016] As a further optimization, a guide cut surface is provided at the upper end of the side wall of the positioning groove, which is conducive to the embedding of the card block into the positioning groove.

[0017] As a further optimization, the clamping block, the pressure plate and the limiting ring are provided with identification lines for aligning the three, so as to ensure that the positions of the clamping block and the limiting ring are relatively accurate, thereby ensuring that the positions of the clamping block and the positioning groove are relatively accurate.

[0018] As a further optimization, the lower end of the pressure plate is provided with a limiting ring that can extend into the piston compressor housing and abut against it, which is conducive to the stable placement of the pressure plate on the piston compressor housing and can prevent the pressure plate from horizontal displacement when being pressed down.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. When the piston compressor housing with a large opening is pressed down for positioning, the pressure is transmitted step by step through the limit ring, the clamping block and the pressure plate, and the pressing range is expanded to complete the positioning action, so as to avoid the instability caused by the hydraulic rod driving the large pressure plate downward when the clamping plate is used alone and the clamping port with a longer channel is opened on the pressure plate to clamp with the hydraulic rod. Instead, the stability during vertical movement and the stability during pressing down (no shaking) can be ensured by placing the pressure plate first and then clamping the smaller clamping block through the hydraulic rod;

[0021] 2. The clamping block can be stably arranged on the hydraulic rod and can move smoothly with the hydraulic rod to ensure the stability when acting on the pressure plate, and the piston compressor housing can be pressed down steadily through the pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model.

[0023] Figure 2 This is a structural diagram of an embodiment of a card block of the utility model.

[0024] Figure 3 This is a structural diagram of an embodiment of a substrate of the utility model.

[0025] Figure 4 It is a structural diagram of an embodiment of the C-shaped buckle of the utility model.

[0026] Figure 5 It is a structural diagram of another embodiment of the C-shaped buckle of the utility model.

[0027] Figure 6 It is an application schematic diagram of the utility model. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figures 1 to 5As shown, a piston compressor housing processing and positioning tool comprises a support base 1, a hydraulic cylinder 2, a clamping block 3 and a pressure plate 4, the support base 1 is used to support and position the piston compressor housing 100, the hydraulic cylinder 2 is arranged in / on the support base 1, and its hydraulic rod 21 extends upward from the upper end of the piston compressor housing 100, and a limiting ring 22 is provided at the top, the clamping block 3 is provided with a clamping slot 30 passing through one side wall thereof, the clamping block 3 is sleeved on the hydraulic rod 21 through the clamping slot 30 and fixed thereto, and abuts against the lower end of the limiting ring 22, the pressure plate 4 has a through hole 40 passing through its body, the pressure plate 4 is sleeved on the peripheral side of the hydraulic rod 21 through the through hole 40, and abuts against the upper end of the piston compressor housing 100, and abuts against the clamping block 3 driven downward by the hydraulic cylinder 2 to press the piston compressor housing 100.

[0030] Combination Figure 6 As shown, in the present invention, for the piston compressor housing 100 that needs to be positioned, both its upper and lower ends have flat ends, and due to the properties of its housing, it has a middle cavity that vertically penetrates its body. The piston compressor housing 100 is placed on the support base 1 from top to bottom, and its lower end face is stably abutted against the support base 1, and the upper end of the hydraulic rod 21 of the hydraulic cylinder 2 extends upward out of the middle cavity, and the pressure plate 4 is sleeved from top to bottom on the peripheral side of the hydraulic rod 21 through the through hole 40 it has, and its lower end abuts against the upper end face of the piston compressor housing 100, and then the clamping block 3 is fixed to the hydraulic rod 21 through the bayonet 30, and is abutted against the limit ring 22 upward, and the hydraulic rod 2 drives the hydraulic rod 21 to drive the clamping block 3 to move down and abut against the pressure plate 4, and under the limiting action of the limit ring 22, the clamping block 3 maintains the downward pressure on the pressure plate 4, so that the piston compressor housing 100 is pressed against the support base 1 to complete the positioning. When the piston compressor housing 100 needs to be released from its position, the hydraulic cylinder 2 only needs to drive the hydraulic rod 21 to reset, and after removing the clamping block 3 and the pressure plate 4 in turn, the piston compressor housing 100 can be separated from the hydraulic rod 21 from bottom to top.

[0031] On the basis of stably supporting the piston compressor housing 100, the utility model contacts the upper end surface of the piston compressor housing 100 through a pressure plate 4 with a large coverage area, and applies downward pressure to the pressure plate 4 through a clamping block 3 that can be fixed on the hydraulic rod 21, thereby pressing the piston compressor housing 100, that is, the pressure is transmitted step by step through the limit ring 22, the clamping block 3 and the pressure plate 4 to expand the downward pressure range to complete the positioning action. The positioning tool has a simple structure and is suitable for positioning products with a large width range; for products with different widths, only the pressure plate 4 needs to be replaced to adapt to them, and it has good versatility.

[0032] In addition, a plurality of positioning pins (not shown) may be provided on the upper end surface of the support base 1, and the positioning holes on one end surface of the piston compressor housing 100 that abuts against the support base 1 are sleeved onto the positioning pins to ensure that the piston compressor housing 100 is accurately positioned and positioned on the support base 1.

[0033] For example Figure 2 As shown, in one embodiment of the utility model, the clamping block 3 includes a base plate 31 and a C-shaped clamping buckle 32. The base plate 31 is provided with a clamping groove 310. The C-shaped clamping buckle 32 is arranged in the clamping groove 310. The C-shaped clamping buckle 32 is preferably glued to the side wall of the clamping groove 310, so that the groove 320 on the body of the C-shaped clamping buckle 32 forms a clamping mouth 30, and is in interference fit with the upper part of the hydraulic rod 21. Therefore, the C-shaped clamping buckle 32 is selected to be a hard or soft rubber-plastic material, which has deformable and recoverable properties, so that the clamping block 3 can be fixed to the hydraulic rod 21 as a whole after interference fit with the hydraulic rod 21.

[0034] Combination Figure 3 As shown, a groove 311 is provided on the side wall of the slot 310, and the groove 311 is arranged in the middle of the slot 310. The C-shaped buckle 32 is arranged in the groove 311 and at least partially protrudes from the side wall of the slot 310. On the one hand, it can ensure that the C-shaped buckle 32 will not be displaced up and down in the slot 310 due to the movement of the hydraulic rod 21. On the other hand, the part protruding outward from the groove 311 can ensure interference fit with the hydraulic rod 21.

[0035] Combination Figure 4 As shown, the C-shaped buckle 32 is made of rubber, and a pair of compressible and resilient protrusions 321 are symmetrically provided on the two opposite side walls of the groove 320 on the main body, and the protrusions 321 are in contact with the hydraulic rod 21. The limiting effect of the protrusions 321 can prevent the block 3 from detaching from the hydraulic rod 21 in the horizontal direction.

[0036] In addition, a positioning groove (not shown) for positioning the block 3 can be provided at the upper end of the pressure plate 4. When the block 3 abuts against the pressure plate 4, the horizontal rotation of the block 3 relative to the pressure plate 4 can be limited to ensure stability during downward pressure; a guide cut surface is provided at the upper end of the side wall of the positioning groove, which can facilitate the block 3 to smoothly enter the positioning groove; preferably, an identification line for aligning the three can be provided on the pressure plate 4, the block 3 and the limit ring 22. When the external contour structure of the block 3 is non-circular, the pressure plate 4 can be placed on the piston compressor housing 100. The identification line and the limit ring 22 can be used for preliminary positioning, and then the block 3 can be aligned with the identification line of the limit ring 22 when it is positioned on the hydraulic rod 21, thereby ensuring that the block 3 can be smoothly matched with the positioning groove on the pressure plate 4 and embedded therein.

[0037] For example Figure 5As shown, the lower end of the pressure plate 4 is provided with a limiting ring 41 which can extend into the piston compressor housing 100 and abut against it, ensuring that the positions of the pressure plate 4 and the piston compressor housing 100 are relatively stable and avoiding displacement of the pressure plate 4 when the block 3 abuts against it.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A piston compressor housing processing and positioning tool, characterized in that: include: A support base for supporting and positioning the piston compressor housing, A hydraulic cylinder is arranged in the support base, and its hydraulic rod extends upward from the upper end of the piston compressor housing, and a limit ring is provided at the top end. The clamping block is provided with a clamping opening penetrating through one side wall thereof, the clamping block is sleeved on the hydraulic rod through the clamping opening to be fixed thereto, and abuts against the lower end of the limiting ring. The pressure plate has a through hole penetrating its body. The pressure plate is sleeved on the peripheral side of the hydraulic rod through the through hole, abuts against the upper end of the piston compressor housing, and abuts against the clamping block driven downward by the hydraulic cylinder to press the piston compressor housing.

2. The piston compressor housing machining and positioning tool according to claim 1, characterized in that: The upper end surface of the support base is provided with a plurality of positioning pins.

3. The piston compressor housing machining and positioning tool according to claim 1, characterized in that: The clamping block comprises a base plate and a C-shaped clamping buckle. The base plate is provided with a clamping slot. The C-shaped clamping buckle is arranged in the clamping slot and is in interference contact with the upper part of the hydraulic rod.

4. The piston compressor housing machining and positioning tool according to claim 3, characterized in that: The side wall of the card slot is provided with an embedding groove, the C-shaped buckle is arranged in the embedding groove and at least partially protrudes from the side wall of the card slot.

5. The piston compressor housing machining and positioning tool according to claim 4, characterized in that: The embedding groove is arranged in the middle of the clamping groove.

6. The piston compressor housing machining and positioning tool according to claim 3, 4 or 5, characterized in that: The C-shaped buckle is made of rubber material, and at least one pair of compressible and resilient protrusions are symmetrically arranged on two opposite side walls close to each other, and the protrusions are in contact with the hydraulic rod.

7. The piston compressor housing machining and positioning tool according to claim 1, characterized in that: The upper end of the pressing plate is provided with a positioning groove for positioning the clamping block.

8. The piston compressor housing machining and positioning tool according to claim 7, characterized in that: The upper end of the side wall of the positioning groove is provided with a guiding cut surface.

9. The piston compressor housing machining and positioning tool according to claim 7, characterized in that: The clamping block, the pressing plate and the limiting ring are provided with identification lines for aligning the three.

10. The piston compressor housing machining and positioning tool according to claim 1 or 7, characterized in that: The lower end of the pressure plate is provided with a limiting ring which can extend into the piston compressor housing and abut against it.

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