CN114871970B - Positioning tool for machining exhaust seat of compressor - Google Patents
Positioning tool for machining exhaust seat of compressor Download PDFInfo
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- CN114871970B CN114871970B CN202210685530.9A CN202210685530A CN114871970B CN 114871970 B CN114871970 B CN 114871970B CN 202210685530 A CN202210685530 A CN 202210685530A CN 114871970 B CN114871970 B CN 114871970B
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- 238000003754 machining Methods 0.000 title claims abstract description 16
- 230000007704 transition Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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Abstract
The invention relates to the field of part machining tools, in particular to a positioning tool for machining an exhaust seat of a compressor, which comprises the following components: a lower positioning device; the lower positioning device includes: bottom support providing longitudinal support points, lateral support providing fore-aft support points, and lateral support providing left-right support points; when the exhaust seat is positioned, the bottom support is connected with the bottom surface of the exhaust seat, and the bottom support provides at least three non-collinear supporting points; the transverse support is positioned between the front end face and the rear end face of the exhaust seat, is connected with one wall face in the front-rear direction of the exhaust seat, and provides at least two supporting points; the side supports are connected to the wall surfaces on one side of the exhaust seat in the left-right direction, and the side supports provide at least one support point. The invention ensures the positioning accuracy, and simultaneously positions the axis of the rear exhaust seat along the horizontal direction, so that the front end face and the rear end face of the exhaust seat face to the front side and the rear side respectively, thereby being convenient for simultaneously processing the front end face and the rear end face.
Description
Technical Field
The invention relates to the field of part machining tools, in particular to a positioning tool for machining an exhaust seat of a compressor.
Background
In the compressor, the exhaust seat belongs to a high-precision accessory, the machining precision of the exhaust seat directly influences the working efficiency of the compressor, and the tool clamp is one of main reasons for influencing the machining precision, so that a higher positioning requirement is provided for the tool clamp required by machining. And the main processing surfaces of the compressor exhaust seat are a front end surface and a rear end surface for assembling with a machine body and other accessories.
In the existing fixture for the exhaust seat, for example, chinese patent application (publication No. CN212146073U, publication No. 20201215) discloses a multi-station fixture for the exhaust seat, which comprises a base, wherein at least two stations are arranged on the base, a compression assembly and a plurality of positioning supports are arranged on the stations, the positioning supports are arranged around the stations, positioning pieces are arranged at the upper ends of the positioning supports, one ends of the positioning pieces are fixed with the positioning supports, the compression assembly comprises a screw and a pressing plate for compressing a workpiece, the bottom of the screw is connected with the base, and the pressing plate is connected with the upper ends of the screw. The utility model provides a multi-station tool for an exhaust seat, which can accommodate a plurality of workpieces simultaneously, can finish processing the workpieces once in disassembly and assembly, and improves the production efficiency.
However, the exhaust seat tooling has the following problems:
1. The axis of the exhaust seat is positioned along the longitudinal direction, so that only the surface positioned above can be machined after the positioning is finished, and for the exhaust seat, the front end surface and the rear end surface cannot be machined at the same time, and one surface needs to be machined and then the other surface needs to be disassembled and reinstalled to be machined. That is, the positioning mode is unreasonable, resulting in low processing efficiency.
2. When carrying out the unloading to the exhaust seat, though can lateral shifting screw rod, avoid taking place to interfere with the exhaust seat to the screw rod need not dismantle, has simplified the dismouting step, but the clamp plate on the screw rod is very limited in the distance that vertical direction was adjusted, and the installation space of reserving the exhaust seat is too little, leads to the exhaust seat to be unable smooth get into in the positioner of below.
Disclosure of Invention
In order to solve the problem that the positioning mode of the exhaust seat is unreasonable, the invention aims to provide a positioning tool for processing the exhaust seat of a compressor, wherein a lower positioning device in the positioning tool is used for setting the axis of the exhaust seat along the horizontal direction and positioning the exhaust seat from the lower part, so that the front end face and the rear end face of the positioned exhaust seat can be processed, and the processing efficiency is improved.
For the purpose of the invention, the following technical scheme is adopted for implementation:
A positioning tooling for compressor bleed seat machining, the tooling comprising: a lower positioning device for positioning the lower part of the exhaust seat; the lower positioning device includes: bottom support providing longitudinal support points, lateral support providing fore-aft support points, and lateral support providing left-right support points; when the exhaust seat is positioned, the bottom support is connected with the bottom surface of the exhaust seat, and the bottom support provides at least three non-collinear supporting points; the transverse support is positioned between the front end face and the rear end face of the exhaust seat, is connected with one wall face in the front-rear direction of the exhaust seat, and provides at least two supporting points; the side supports are connected with the wall surfaces on one side of the exhaust seat in the left-right direction, and the side supports at least provide one supporting point; the exhaust seat is fully positioned by the bottom support, the lateral support and the side support.
Preferably, the bottom support comprises: a first front side support and a second front side support which are arranged on the front side and distributed left and right, and a first rear side support and a second rear side support which are arranged on the rear side and distributed left and right; the first front side support, the second front side support, the first rear side support, and the second rear side support cooperate to provide at least three non-collinear support points.
Preferably, the first front support serves to position the first transition surface from below; the second front side support is used for positioning the first plane from below; the first rear side support is used for positioning the second transition surface from below; the second rear side support is used for positioning the second plane from below; the transverse support is used for positioning the rear wall surface or the front wall surface from the front-back horizontal direction; the side supports are used to position the outer surface from the left or right horizontal direction.
Preferably, the lower positioning device includes: a front side support plate, an intermediate support plate and a rear side support plate which are sequentially arranged from front to back; the first front side support and the second front side support are respectively arranged at the left side and the right side of the upper part of the front side support plate; the first rear side support and the second rear side support are respectively arranged at the left side and the right side of the upper part of the rear side support plate; the transverse supports are arranged on the front side surface or the rear side surface of the middle support plate, and the two transverse supports are distributed left and right; the side supports are arranged on the left side or the right side of the middle support plate.
Preferably, the first front side support and the second front side support are both planar supports; the first rear side support, the second rear side support and the transverse support are spherical support nails; the side support is a support part which is arranged on one side of the middle support plate and bulges upwards, and the inner side surface of the support part is used for positioning the outer surface.
Preferably, the left and right sides of the intermediate support plate are provided with support parts, and the outer shape of the support parts is matched with the outer surface of the corresponding position on the exhaust seat.
Preferably, the upper end surface of the intermediate support plate has a contour matching the outer surface of the lower side of the exhaust seat.
Preferably, an upper positioning device for positioning the upper part of the exhaust seat is arranged above the lower positioning device; the upper positioning device includes: two upper positioning blocks which are distributed left and right and are arranged in opposite directions, and an upper support which is arranged on the upper positioning blocks and extends along the front-back direction; the two upper positioning blocks are used for positioning the left side and the right side of the upper part of the exhaust seat respectively; the upper support is used for positioning the front wall surface from the horizontal direction.
Preferably, a positioning surface is formed on the inner side of the upper positioning block, and the lower part of the positioning surface is a vertical surface for positioning the connecting surface; the upper part of the positioning surface is an arc surface corresponding to the arc surface, and the arc surface is used for positioning the arc surface.
Preferably, the tool further comprises: the clamping device is arranged above the lower positioning device and can move up and down to the lower positioning device; the upper positioning device is arranged on the output end of the clamping device, and moves synchronously along with the clamping device.
In summary, the lower positioning device has the advantages that the bottom of the exhaust seat is supported and positioned by the bottom, the front and back directions of the exhaust seat are supported and positioned by the lateral surface, and the left and right directions of the exhaust seat are supported and positioned by the lateral surface, so that the exhaust seat is completely positioned, and the positioning precision is ensured. And the axis of the rear exhaust seat is arranged along the horizontal direction, so that the front end face and the rear end face of the exhaust seat face to the front side and the rear side respectively, the front end face and the rear end face are convenient to process simultaneously, and the processing efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of an exhaust seat.
Fig. 2 is a schematic view of the structure of the bottom of the exhaust seat.
Fig. 3 and 4 are schematic structural views of the lower positioning device.
Fig. 5 and 6 are schematic structural diagrams of the exhaust seat tooling.
Fig. 7 and 8 are schematic views of the structure of the exhaust seat mounted on the tool.
Fig. 9 is a schematic structural view of the tooling when the clamping device is lifted and the pad shaft is taken out.
Fig. 10 is an exploded view of the locking device.
Fig. 11 is a cross-sectional view of the tooling.
Detailed Description
A fixture for machining a compressor exhaust seat is used for positioning and clamping the compressor exhaust seat, and is convenient for further machining the exhaust seat. The fixture comprises a lower positioning device 10 for positioning the exhaust seat and a clamping device 20 for clamping the exhaust seat, wherein the lower positioning device 10 adopts a six-point positioning principle for positioning, and for more clearly describing how to realize positioning, the basic structure of the exhaust seat is described below.
As shown in fig. 1 and 2, the exhaust seat 50 includes a front end surface 52 located at the front side of the exhaust seat body 51 and a rear end surface 53 located at the rear side of the exhaust seat body 51, the front end surface 52 and the rear end surface 53 each extending outwardly around the periphery of the exhaust seat body 51, which is particularly embodied in the lower middle side of the exhaust seat body 51, for example, in fig. 2, the exhaust seat body 51 is relatively recessed between the front end surface 52 and the rear end surface 53 and a recessed area 54 is formed at the recess. In the recessed area 54, the outer surface 511 of the lower portion of the exhaust seat body 51 is formed by connecting a plurality of circular arcs. As shown in fig. 1, a platform 512 extending in a substantially horizontal direction is provided at the top of the exhaust seat body 51, and the left and right sides of the platform 512 are substantially vertical connection surfaces 513, and the connection surfaces 513 and the platform 512 are in transition through an arc surface 514.
As shown in fig. 1 and 2, the front end surface 52 has a slightly outwardly extending flange 521, a relatively flat rear wall 522 is formed on the rear side of the flange 521, a first transition surface 523 connected to an arc by a straight line is formed on one side (e.g., the left side in fig. 1) of the bottom of the flange 521, and a first flat surface 524 protruding downward is formed on the other side (e.g., the right side in fig. 1) of the bottom of the flange 521.
As shown in fig. 1 and 2, the rear end surface 53 has a thin plate 531 extending outward a distance, a front side of the thin plate 531 forms a relatively flat front wall surface 532, a second transition surface 533 connected by a straight line and an arc is formed on one side (e.g., left side in fig. 1) of the bottom of the thin plate 531, a second plane 534 protruding downward is formed on the other side (e.g., right side in fig. 1) of the bottom of the thin plate 531, and an oil return hole 535 is provided on the second plane 534.
In the subsequent processing of the exhaust seat 50, the front end face 52 and the rear end face 53 are mainly processed, so that the axis of the exhaust seat 50 should not be arranged in the longitudinal direction but in the transverse direction at the time of positioning, and thus the front end face 52 and the rear end face 53 face to the front side and the rear side respectively, thereby facilitating the processing of the front end face 52 and the rear end face 53.
As shown in fig. 3 and 4 (preferably referring to fig. 7 and 8 simultaneously), the lower positioning device 10 includes: a first front support 11 for positioning the first transition surface 523 from below; a second front side support 12 for positioning the first plane 524 from below; a first rear support 13 for positioning the second transition surface 533 from below; a second rear support 14 for positioning the second plane 534 from below; two lateral supports 15 for positioning the rear wall 522 or the front wall 532 in the front-rear horizontal direction; and a side support 16 for positioning the outer surface 511 from the left-right horizontal direction.
From the six-point positioning principle, the first front side support 11, the second front side support 12, the first rear side support 13, and the second rear side support 14 cooperate with each other to position the bottom surface of the exhaust seat 50, that is, to limit three degrees of freedom (specifically, translation in the longitudinal direction, rotation in the front-rear axis direction, and rotation in the left-right axis direction) of the exhaust seat 50. The two lateral supports 15 position the exhaust seat 50 from one of the horizontal directions (in fig. 3, understood as the front-rear direction), i.e., limit two degrees of freedom of the exhaust seat 50 (specifically, translation in the front-rear direction and rotation in the up-down axis direction). Positioning of the exhaust seat 50 from the other horizontal direction (left-right direction as viewed in fig. 3) by one side support 16 limits the last degree of freedom (specifically translation in the left-right direction) when the exhaust seat 50 is fully positioned.
In a preferred embodiment, as shown in fig. 3, the first front support 11 and the second front support 12 are each positioned in a planar form to improve positioning accuracy. The first front support 11 is slightly lower in height than the second front support 12 in order to match the profile of the front face 52 of the exhaust seat 50. In order to further improve the positioning accuracy, the first front support 11 and the second front support 12 may be provided on one front support plate 101, which facilitates the processing of the first front support 11 and the second front support 12, and also ensures the positional accuracy of the first front support 11 and the second front support 12.
As shown in fig. 4, the first rear side support 13 and the second rear side support 14 are each ball-end support pins disposed longitudinally upward, and when the positioning is performed, the tip end of the second rear side support 14 is located in the oil return hole 535 of the exhaust seat 50, so as to improve the positioning accuracy. The first rear support 13 is slightly lower in height than the second rear support 14 in order to match the profile of the rear end surface 53 of the exhaust seat 50. The first rear support 13 and the second rear support 14 are mounted together on a rear support plate 102.
As shown in fig. 3, a middle support plate 103 is provided between the front support plate 101 and the rear support plate 102, and the middle support plate 103 is higher than the front support plate 101 and the rear support plate 102. The lateral supports 15 are mounted on the middle support plate 103 in the front-rear direction, and two lateral supports 15 are distributed on the middle support plate 103 in a left-right direction. Both lateral supports 15 are ball-end support pins. In fig. 3, the side supports 16 are provided in two and are integrated in the support portions 1031 located on both left and right sides of the upper end of the middle support plate 103, the support portions 1031 are upwardly protruded, and the inner side surfaces of the support portions 1031 position the exhaust seat 50 from both left and right sides. For better positioning of the exhaust seat body 51, the entire upper end surface 1032 of the middle support plate 103 has a shape matching the outer surface 511, and the upper end surface 1032 is embodied in fig. 3 as having a shape formed by connecting a plurality of circular arcs. When the positioning of the exhaust seat 50 is completed, the outer surface 511 of the exhaust seat body 51 fits snugly against the upper end surface 1032 of the middle support plate 103.
As shown in fig. 5 and 6, the clamping device 20 comprises four guide rods 21 longitudinally arranged, the lower positioning device 10 is positioned in a rectangle formed by the four guide rods 21, a fixed plate 22 for fixing the guide rods 21 relatively is arranged at the top of the four guide rods 21, an air cylinder 23 is longitudinally arranged on the upper end surface of the fixed plate 22, a piston rod of the air cylinder 23 is downwards arranged and extends to the lower part of the fixed plate 22, a movable plate 24 is connected to the piston rod, the periphery of the movable plate 24 is respectively and slidably arranged on the four guide rods 21, and the air inlet and the air outlet of the air cylinder 23 control the movable plate 24 to move up and down. In order to achieve the clamping of the exhaust seat 50, a clamping block 25 is provided on the moving plate 24, the lower end of the clamping block 25 protrudes downward from the bottom surface of the moving plate 24, and the position of the clamping block 25 corresponds to the lower positioning device 10, so that when the moving plate 24 moves downward, the bottom of the clamping block 25 contacts the top of the exhaust seat 50 and applies a force on the platform 512, clamping the exhaust seat 50 downward on the lower positioning device 10.
In order to ensure the stability of the moving plate 24 during movement, the air cylinders 23 are provided with two parallel plates, and the periphery of the moving plate 24 is slidably arranged on the guide rod 21 through linear bearings. The cylinder 23 is only used to slide the moving plate 24 up and down, so that it is possible to replace it with other driving components, such as a motor driving a screw or a rack and pinion for driving. Since the exhaust seat 50 has a certain width, there are two clamping blocks 25 for securing the clamping reliability, and both are used to press the platform 512 located at the upper portion of the exhaust seat 50. It is foreseen by the person skilled in the art that clamping of the exhaust seat 50 can also be achieved when there is only one clamping block 25.
As shown in fig. 7 and 8, it is noted that the exhaust seat 50 has a large height, and the lower positioning means 10 positions only the middle lower portion of the exhaust seat 50, which makes the middle upper portion of the exhaust seat 50 exposed above the lower positioning means 10 after the exhaust seat 50 is positioned in the lower positioning means 10, and the exhaust seat 50 is liable to topple when this portion receives an external force in the horizontal direction. To avoid this, an upper positioning device 30 for positioning the upper part of the exhaust seat 50 is provided at the bottom of the moving plate 24, but it should be understood that the upper positioning device 30 is provided on the moving plate 24 only as a preferred embodiment, and for example, the upper positioning device 30 may be slidably mounted on the guide rod 21.
As shown in fig. 6 and fig. 7 and 8, the upper positioning device 30 includes two upper positioning blocks 31 distributed left and right and disposed opposite to each other, and the two upper positioning blocks 31 are respectively used for positioning left and right sides of an upper portion of the exhaust seat 50. A positioning surface 311 is formed on the inner side of the upper positioning block 31 (the side where the two upper positioning blocks 31 face each other), and a vertical plane extending longitudinally is formed on the lower portion of the positioning surface 311, and is used for positioning the connection surfaces 513 on the left and right sides of the exhaust seat body 51. The upper portion of the positioning surface 311 is an arc surface corresponding to the arc surface 514, so that the upper positioning block 31 can position the top of the exhaust seat 50 while positioning the exhaust seat 50 from the side, and further ensure the positioning accuracy of the exhaust seat 50.
As shown in fig. 6, each of the upper positioning blocks 31 is provided with an upper support 32 extending in the front-rear direction, and the upper support 32 is used for positioning the front wall surface 532 on the upper portion of the sheet 531. And preferably the upper support 32 positions the front wall 532 and the lateral support 15 positions the rear wall 522 so that both the front and rear sides of the exhaust seat 50 can be positioned, further avoiding the occurrence of overturning.
The upper portion of the exhaust seat 50 can be positioned by using the upper positioning block 31 and the upper support 32. Specifically, after the moving plate 24 moves downward, the upper positioning block 31 can first contact the left and right sides of the exhaust seat 50 to position the left and right sides of the exhaust seat 50, then the upper portion of the inner positioning surface 311 of the upper positioning block 31 can also position the top of the exhaust seat 50, and then the upper portion of the exhaust seat 50 is manually abutted against the upper support 32, so that the front wall surface 532 of the exhaust seat 50 is abutted against the upper support 32, thereby ensuring that the exhaust seat 50 is effectively positioned and avoiding overturning.
As shown in fig. 6, the fixed plate 22 is provided with an operation handle 26 for controlling the opening and closing of the reversing valve in the cylinder 23. The use process is as follows: when feeding and discharging, the operating handle 26 is rotated to ventilate the air cylinder 23, and the piston rod of the air cylinder 23 moves upwards, so that the moving plate 24 is driven to slide upwards, and the clamping block 25 is far away from the lower positioning device 10. The space at the lower portion is increased to facilitate the mounting of the exhaust seat 50 to the lower positioning device 10. When the air discharge seat 50 is in place, the operation handle 26 is rotated to deactivate the air cylinder 23, and at this time, the piston rod of the air cylinder 23 is moved downward by the gravity of the moving plate 24, and the moving plate 24 slides downward, so that the upper positioning device 30 and the clamping block 25 move toward the lower air discharge seat 50, and the upper positioning device 30 first positions the upper portion of the air discharge seat 50, and then the clamping block 25 presses against the platform 512 located at the upper portion of the air discharge seat 50, and at this time, the air discharge seat 50 is clamped to the lower positioning device 10.
As is apparent from the above, when clamping, the cylinder 23 is in the air-cut state, clamping the exhaust seat 50 to the lower positioning device 10 by only the gravity of the moving plate 24 is obviously unreliable, and in order to secure the clamping effect of the exhaust seat 50, a locking device 40 for keeping the moving plate 24 and the fixed plate 22 from relative movement is provided between the moving plate 24 and the fixed plate 22.
As shown in fig. 9 and 10, the locking device 40 includes a guide sleeve 41 provided on the fixing plate 22, and the guide sleeve 41 is relatively fixed (e.g., coupled by a screw) to the fixing plate 22, preventing the guide sleeve 41 from moving. A guide hole 411 penetrating longitudinally is provided in the guide sleeve 41, a jack 42 is slidably provided in the guide hole 411, a screw 43 disposed longitudinally is connected to the upper portion of the jack 42, and the screw 43 and the jack 42 move up and down synchronously. External threads are arranged on the circumferential side surface of the screw 43, the screw 43 is connected inside a nut 44 positioned at the top of the guide sleeve 41 through the external threads, the nut 44 and the guide sleeve 41 are relatively fixed, the nut 44 is prevented from moving, a threaded hole 441 with internal threads is arranged inside the nut 44, the screw 43 is matched with the threaded hole 441, and when the screw 43 rotates, the screw 43 moves up and down inside the nut 44, so that a push rod 42 below the screw 43 moves up and down along with the screw 43. When the ejector rod 42 moves downward, the lower portion of the ejector rod 42 will apply a downward force so that the clamp block 25 has a downward movement tendency, and will abut the clamp block 25 against the exhaust seat 50, thereby enabling the position of the clamp block 25 to be fixed.
It will be apparent that the above-described embodiment in which the rod 42 is moved up and down and locked relative to each other by the engagement of the screw 43 and the nut 44 is merely a preferred embodiment, and that other components having similar locking functions may be used.
As shown in fig. 10, a better connection structure between the ejector rod 42 and the screw 43 is disclosed: a connection port 421 is arranged at the top of the ejector rod 42, and the connection port 421 is an inverted T-shaped connection groove. A constriction 431 is provided in the lower part of the screw 43, which constricts radially inwards, so that the screw 43 is also substantially inverted T-shaped, seen from the side of the screw 43, at a position below the constriction 431. When the screw 43 is mounted, the shrinkage section 431 is mounted in the connection port 421, so that the jack 42 and the screw 43 can move up and down synchronously. The advantage of this connection is that when the screw 43 is rotated, only the ram 42 is driven up and down, but the ram 42 is not rotated.
In order to ensure that the moving plate 24 has a certain stroke, a sufficient position is provided for the lower positioning device 10 below to install the exhaust seat 50, and the bottom of the ejector rod 42 is not suitable to be directly connected with the moving plate 24 or the clamping block 25, because the ejector rod 42 needs to be moved upwards by a large distance to move the sufficient distance provided for the moving plate 24 below, which is troublesome to operate.
To solve this problem, as shown in fig. 10, a spacer 45 is detachably provided at the bottom of the jack 42, and the spacer 45 needs to have a certain length, for example, 100mm to 300mm. When clamping is required, a pad 45 is mounted to the bottom of the ram 42, and pressure is transmitted to the ram 42 through the pad 45. When released, the spacer 45 is removed from the bottom of the carrier bar 42, as shown in fig. 9, thus leaving a distance between the movable plate 24 and the carrier bar 42 for the movable plate 24 to move upward.
The shape of the cushion block 45 can be cuboid, cylinder, etc. which is easy to grasp, and meanwhile, the cushion block 45 needs to have certain rigidity to bear the clamping force. In order to ensure that the ejector rod 42 can be accurately pressed on the top of the cushion block 45, a positioning groove 451 which is sunken downwards is arranged on the top of the cushion block 45, a positioning end 422 matched with the positioning groove 451 is arranged at the bottom of the ejector rod 42, the positioning end 422 can extend into the positioning groove 451 to position the cushion block 45, and the cushion block 45 is convenient to install. Preferably, the positioning grooves 451 are provided at both the upper and lower ends of the pad 45, so that the pad 45 does not need to be distinguished between the upper end connected to the jack 42 and the lower end connected to the jack 42.
When the moving plate 24 is locked by the locking device 40, the clamping block 25 may move in a vertical direction with respect to the moving plate 24 in order to prevent the clamping block 25 from crushing the exhaust seat 50 during the downward movement. For example, in fig. 10 and 11, a mounting hole 241 penetrating longitudinally is provided in the moving plate 24, the clamping block 25 is mounted in the mounting hole 241, and a blocking surface is formed in the mounting hole 241 for blocking the clamping block 25 from falling out from below the mounting hole 241. In this way, the bottom of the clamping block 25 is first contacted with the exhaust seat 50 during the downward movement of the moving plate 24, but since the clamping block 25 and the moving plate 24 can move relatively, the bottom of the clamping block 25 is only contacted with the top surface of the exhaust seat 50, and no great pressure is applied to the exhaust seat until the moving plate 24 moves to the limit position (in the limit position, the moving plate 24 is not directly contacted with the exhaust seat 50), and a distance is still left between the two. At this time, the cushion block 45 is mounted on the top of the clamping block 25, and the ejector rod 42 is driven to move downwards by the screw 43, so that the cushion block 45 presses the clamping block 25 downwards, and the clamping block 25 applies a force to the exhaust seat 50 downwards, so that the exhaust seat 50 is clamped in the lower positioning device 10. It should be noted that the position of the spacer 45 must correspond to the position of the clamping block 25 in order to apply a force to the clamping block 25.
The clamping block 25 may be in the form of a solid of revolution, for example a stepped shaft having a larger diameter at the upper portion than at the lower portion in fig. 11, in which case the above-described blocking surface may be a stepped surface provided in the mounting hole 241 (see fig. 11). Of course, the clamping block 25 may also be tapered with a smaller lower and larger upper portion, and the corresponding blocking surface may also be tapered with a smaller lower and larger upper portion.
The tool ensures that the exhaust seat 50 finishes processing of four reference surfaces under one coordinate, and ensures the processing precision of high-precision accessories.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art. The generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. Positioning tool for processing exhaust seat of compressor, which is characterized in that the tool comprises: a lower positioning device (10) for positioning the lower part of the exhaust seat (50); the lower positioning device (10) comprises: a bottom support providing a longitudinal support point, a lateral support (15) providing a fore-aft support point, and a side support (16) providing a left-right support point; when the exhaust seat (50) is positioned, the bottom support is connected with the bottom surface of the exhaust seat (50), and the bottom support provides at least three non-collinear supporting points; the transverse support (15) is positioned between the front end surface and the rear end surface of the exhaust seat (50), the transverse support (15) is connected with one wall surface of the exhaust seat (50) in the front-rear direction, and the transverse support (15) provides at least two support points; the side supports (16) are connected with the wall surfaces of the exhaust seat (50) at one side in the left-right direction, and the side supports (16) at least provide one supporting point; the exhaust seat (50) is fully positioned by the bottom support, the transverse support (15) and the side support (16);
The bottom support includes: first front side supports (11) and second front side supports (12) which are provided on the front side and are distributed in the left-right direction, and first rear side supports (13) and second rear side supports (14) which are provided on the rear side and are distributed in the left-right direction; the first front side support (11), the second front side support (12), the first rear side support (13) and the second rear side support (14) cooperate to provide at least three non-collinear support points;
the first front support (11) is used for positioning the first transition surface (523) from below; the second front support (12) is used for positioning the first plane (524) from below; the first rear support (13) is used for positioning the second transition surface (533) from below; a second rear support (14) for positioning a second plane (534) from below; the transverse support (15) is used for positioning the rear wall surface (522) or the front wall surface (532) from the front-back horizontal direction; the side support (16) is used for positioning the outer surface (511) from the left side or the right side in the horizontal direction;
the lower positioning device (10) comprises: a front side support plate (101), an intermediate support plate (103) and a rear side support plate (102) which are arranged in order from front to back; the first front side support (11) and the second front side support (12) are respectively arranged at the left side and the right side of the upper part of the front side support plate (101); the first rear side support (13) and the second rear side support (14) are respectively arranged at the left side and the right side of the upper part of the rear side support plate (102); the transverse supports (15) are arranged on the front side surface or the rear side surface of the middle support plate (103), and the two transverse supports (15) are distributed left and right; the side support (16) is arranged on the left side or the right side of the middle support plate (103);
an upper positioning device (30) for positioning the upper part of the exhaust seat (50) is also arranged above the lower positioning device (10); the upper positioning device (30) comprises: two upper positioning blocks (31) which are distributed left and right and are arranged opposite to each other, and an upper support (32) which is arranged on the upper positioning blocks (31) and extends along the front-rear direction; the two upper positioning blocks (31) are used for positioning the left side and the right side of the upper part of the exhaust seat (50) respectively; an upper support (32) for positioning the front wall surface (532) from the horizontal direction;
The tool further comprises: a clamping device (20) which is arranged above the lower positioning device (10) and can move up and down to the lower positioning device (10); the upper positioning device (30) is arranged on the output end of the clamping device (20), and the upper positioning device (30) moves synchronously along with the clamping device (20).
2. The positioning fixture for machining a compressor discharge seat according to claim 1, wherein the first front side support (11) and the second front side support (12) are both planar supports; the first rear side support (13), the second rear side support (14) and the transverse support (15) are all spherical support nails; the side support (16) is a support part (1031) which is arranged on one side of the middle support plate (103) and bulges upwards, and the inner side surface of the support part (1031) is used for positioning the outer surface (511).
3. A positioning fixture for machining a compressor discharge seat according to claim 2, wherein supporting portions (1031) are provided on both left and right sides of the intermediate supporting plate (103), and the outer shape of the supporting portions (1031) is matched with the outer surface (511) of the corresponding position on the discharge seat (50).
4. A positioning fixture for machining a compressor discharge seat according to claim 1, wherein the upper end surface of the intermediate support plate (103) has a contour matching the outer surface (511) of the lower side of the discharge seat (50).
5. The positioning tool for machining a compressor discharge seat according to claim 1, wherein a positioning surface (311) is formed on the inner side of the upper positioning block (31), and the lower part of the positioning surface (311) is a vertical surface for positioning the connecting surface (513); the upper part of the positioning surface (311) is an arc surface corresponding to the arc surface (514), and the arc surface is used for positioning the arc surface (514).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210685530.9A CN114871970B (en) | 2022-06-16 | 2022-06-16 | Positioning tool for machining exhaust seat of compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210685530.9A CN114871970B (en) | 2022-06-16 | 2022-06-16 | Positioning tool for machining exhaust seat of compressor |
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| CN114871970A CN114871970A (en) | 2022-08-09 |
| CN114871970B true CN114871970B (en) | 2024-05-31 |
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| CN202210685530.9A Active CN114871970B (en) | 2022-06-16 | 2022-06-16 | Positioning tool for machining exhaust seat of compressor |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954319A (en) * | 1996-07-19 | 1999-09-21 | Kabushiki Kaisha Kosmek | Rotary clamping apparatus |
| CN101764475A (en) * | 2009-12-28 | 2010-06-30 | 苏州工业园区泰格电子科技有限公司 | Gripping mechanism of stator assembling machine |
| CN104249262A (en) * | 2014-09-11 | 2014-12-31 | 江苏华江科技有限公司 | Combined fixture for machining of breaker shell |
| CN108044547A (en) * | 2018-01-31 | 2018-05-18 | 河南省西峡汽车水泵股份有限公司 | A kind of water pump casing for vehicle cramp for verifying and checking |
| CN108296797A (en) * | 2017-12-29 | 2018-07-20 | 南京嘉玺数控科技有限公司 | A kind of boring and milling machine special equipment of processing new-energy automobile rear axle |
| CN108723699A (en) * | 2018-08-23 | 2018-11-02 | 温岭市九洲电机制造有限公司 | A kind of hot jacket positioning tool of stator core and casing |
| CN109128910A (en) * | 2018-10-09 | 2019-01-04 | 莱芜环球汽车零部件有限公司 | A kind of guiding orientation clamping device |
| CN211361475U (en) * | 2019-10-14 | 2020-08-28 | 智创未来科技发展有限公司 | Anchor clamps are used in robot bearing processing |
| CN111673955A (en) * | 2020-06-24 | 2020-09-18 | 深圳市国祥鑫精密模具有限公司 | Precision mold convenient for positioning and processing |
| CN111745438A (en) * | 2020-08-14 | 2020-10-09 | 赣州润鑫机电有限公司 | Machine tool clamp |
| CN212146073U (en) * | 2020-03-30 | 2020-12-15 | 海宁弘德机械有限公司 | Multi-station tool for exhaust seat |
| CN112676899A (en) * | 2021-01-04 | 2021-04-20 | 张利峰 | Machining loading attachment based on automated control |
| CN114273898A (en) * | 2021-09-27 | 2022-04-05 | 万向钱潮传动轴有限公司 | Double-station screw tightening equipment |
| CN216398806U (en) * | 2021-11-19 | 2022-04-29 | 泉州市凸凹一机机械有限公司 | Double-station tool clamp for machining and cutting guide wheel bracket |
| CN216607720U (en) * | 2021-11-12 | 2022-05-27 | 鑫磊压缩机股份有限公司 | Welding equipment for underframe of screw machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3621082B2 (en) * | 2001-11-13 | 2005-02-16 | 株式会社コスメック | Swivel clamp |
-
2022
- 2022-06-16 CN CN202210685530.9A patent/CN114871970B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954319A (en) * | 1996-07-19 | 1999-09-21 | Kabushiki Kaisha Kosmek | Rotary clamping apparatus |
| CN101764475A (en) * | 2009-12-28 | 2010-06-30 | 苏州工业园区泰格电子科技有限公司 | Gripping mechanism of stator assembling machine |
| CN104249262A (en) * | 2014-09-11 | 2014-12-31 | 江苏华江科技有限公司 | Combined fixture for machining of breaker shell |
| CN108296797A (en) * | 2017-12-29 | 2018-07-20 | 南京嘉玺数控科技有限公司 | A kind of boring and milling machine special equipment of processing new-energy automobile rear axle |
| CN108044547A (en) * | 2018-01-31 | 2018-05-18 | 河南省西峡汽车水泵股份有限公司 | A kind of water pump casing for vehicle cramp for verifying and checking |
| CN108723699A (en) * | 2018-08-23 | 2018-11-02 | 温岭市九洲电机制造有限公司 | A kind of hot jacket positioning tool of stator core and casing |
| CN109128910A (en) * | 2018-10-09 | 2019-01-04 | 莱芜环球汽车零部件有限公司 | A kind of guiding orientation clamping device |
| CN211361475U (en) * | 2019-10-14 | 2020-08-28 | 智创未来科技发展有限公司 | Anchor clamps are used in robot bearing processing |
| CN212146073U (en) * | 2020-03-30 | 2020-12-15 | 海宁弘德机械有限公司 | Multi-station tool for exhaust seat |
| CN111673955A (en) * | 2020-06-24 | 2020-09-18 | 深圳市国祥鑫精密模具有限公司 | Precision mold convenient for positioning and processing |
| CN111745438A (en) * | 2020-08-14 | 2020-10-09 | 赣州润鑫机电有限公司 | Machine tool clamp |
| CN112676899A (en) * | 2021-01-04 | 2021-04-20 | 张利峰 | Machining loading attachment based on automated control |
| CN114273898A (en) * | 2021-09-27 | 2022-04-05 | 万向钱潮传动轴有限公司 | Double-station screw tightening equipment |
| CN216607720U (en) * | 2021-11-12 | 2022-05-27 | 鑫磊压缩机股份有限公司 | Welding equipment for underframe of screw machine |
| CN216398806U (en) * | 2021-11-19 | 2022-04-29 | 泉州市凸凹一机机械有限公司 | Double-station tool clamp for machining and cutting guide wheel bracket |
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|---|---|
| CN114871970A (en) | 2022-08-09 |
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