Anti-vibration clamp for turning and milling of planet carrier

Abstract

The invention relates to the field of planet carrier machining, and particularly discloses a shock-resistant clamp for planet carrier turn-milling machining, which comprises a positioning seat and a bearing block, the bearing block comprises a bearing surface, the bearing surface is provided with a positioning piece, the positioning piece comprises an expansion part and a movable hole, an inner supporting rod is arranged in the movable hole in a sliding fit mode, and the inner supporting rod can telescopically slide along the movable hole to enable the expansion part to expand; a telescopic sliding piston rod is arranged on the positioning seat, the piston rod is rotatably connected with two sets of supporting pressing rods, the two sets of supporting pressing rods are located on the two sides of the bearing block respectively, a lever fixing block is arranged on the side wall of the positioning seat, and the supporting pressing rods are rotatably connected with the lever fixing block. The supporting pressing rod can rotate with the connecting point of the supporting pressing rod and the lever fixing block as the circle center. The air tightness detection structure comprises a detection air path and an air tightness detection hole, and the air tightness detection hole is formed in the bearing surface so as to detect whether the workpiece is attached to the bearing surface or not.

Description

Technical Field

[0001] The invention relates to the field of planetary carrier processing, and in particular to an anti-vibration fixture used for turning and milling of a planetary carrier. Background Art

[0002] The planet carrier is one of the main components of the planetary gear transmission. The planet carrier is fixedly connected to the planetary gear and the sun gear on the ring gear, so that the sun gear, planetary gear, inner ring gear and planet carrier form a planetary gear mechanism to obtain different speed ratios.

[0003] The existing application number is CN201710526307.9, which is a processing method and tooling fixture for a thin-walled planetary carrier. The planetary carrier is fixed on a positioning sleeve by centering the core shaft and the spline hole. The pressure claws are evenly distributed around the circumference of the positioning sleeve. The pressure plate of the pressure claws presses the thin-walled planetary carrier. After positioning and pressing, the reference hole and the planetary shaft hole are machined.

[0004] As mentioned above, the existing fixtures used for planetary carrier processing usually use the spline inner hole for centering, and the pressure claws press the planetary carrier to achieve secondary fixation, but they have no detection function, and are unable to identify whether the parts are completely and stably fixed on the positioning sleeves. They are unable to timely detect the slight movement or deformation of the parts during the processing. The operator cannot adjust the parts in time, which will directly affect the processing accuracy and product quality. In addition, parts that are not completely fixed may fall off or fly out during the processing due to the action of external forces such as cutting force, posing a safety threat to operators and equipment. Summary of the invention

[0005] The invention provides a seismic-resistant clamp for turning and milling of a planetary carrier, so as to solve the technical problem in the prior art that there is no detection function and it is impossible to identify and judge whether a part is completely and stably fixed on a positioning sleeve.

[0006] In order to solve the above problems, the present invention provides an anti-seismic fixture for planetary carrier turning and milling, which adopts the following technical solution: comprising a positioning seat and a receiving block;

[0007] The receiving block includes a receiving surface, the receiving surface is provided with a positioning piece, the positioning piece includes an expansion part and a movable hole, an inner support rod is slidably matched in the movable hole, and the inner support rod can be telescopically slidable along the movable hole to expand the expansion part;

[0008] A retractable and slidable piston rod is provided on the positioning seat, and the piston rod is rotatably connected to a support pressure rod, and the support pressure rod includes two groups, and the two groups of support pressure rods are respectively located on both sides of the receiving block. A lever fixing block is provided on the side wall of the positioning seat, and the support pressure rod is rotatably connected to the lever fixing block, so that the support pressure rod can rotate with its connection point with the lever fixing block as the center of the circle;

[0009] It also includes an airtight detection structure, which includes a detection air path and an airtight detection hole. The airtight detection hole is formed on the receiving surface to detect whether the workpiece is in contact with the receiving surface.

[0010] Furthermore, a hinge is provided on one side of the lever fixing block facing the supporting pressure rod, and both ends of the hinge are respectively hingedly connected to the supporting pressure rod and the lever fixing block, and a counterweight block is provided on one end of the supporting pressure rod away from the receiving block.

[0011] Furthermore, the supporting pressure rod includes a fixed part, a connecting part, and a supporting part. The fixed part and the supporting part are respectively fixedly connected to two ends of the connecting part. The fixed part is hingedly connected to the piston rod, the connecting part is hingedly connected to the hinge, and the supporting part corresponds to the positioning piece. Based on the connecting part, the fixed part and the supporting part are both arranged obliquely along the connecting part. Based on the central axis of the positioning seat, the distance between the supporting part and the central axis of the positioning seat is smaller than the distance between the fixed part and the central axis of the positioning seat.

[0012] Furthermore, the positioning seat is provided with an active cavity, a connecting block is provided in the active cavity, the connecting block is slidably matched with the inner wall of the active cavity, and the inner support rod is linked to the connecting block.

[0013] Furthermore, the detection air circuit includes an air inlet circuit, a connecting air circuit, and an air outlet circuit. The air inlet circuit is located in the connecting block, the connecting air circuit is located in the positioning seat, and a first air flow groove is provided on the side wall of the connecting block. The air inlet circuit and the connecting air circuit are interconnected with the first air flow groove, and the connecting air circuit, the air outlet circuit, and the airtight detection hole are connected in sequence.

[0014] Furthermore, the first airflow groove is an annular structure formed on the outer wall of the connecting block, and first sealing rings are provided on the upper and lower sides of the first airflow groove on the side wall of the connecting block. The first sealing ring is connected between the outer wall of the connecting block and the inner wall of the active cavity.

[0015] Furthermore, a connecting piece is fixedly connected to the side wall of the positioning piece, the connecting piece is provided with a hollow cavity, the piston rod and the hollow cavity are telescopically slidably matched, and an elastic piece is sleeved on the outer wall of the piston rod to enable the piston rod to elastically telescope along the hollow cavity.

[0016] Furthermore, the piston rod includes a limiting portion and a telescopic portion. The limiting portion is fixedly connected to the telescopic portion and presents a T-shaped structure. The limiting portion is located in the hollow cavity. The telescopic portion extends out of the connecting piece and is rotatably connected to the supporting pressure rod. The elastic piece is sleeved on the outer wall of the telescopic portion, and the elastic piece is connected between the limiting portion and the inner wall of the hollow cavity.

[0017] Furthermore, a power air circuit is provided in the connecting block, an air flow branch interconnected with the hollow cavity is provided on the positioning seat, a second air flow groove is provided on the side wall of the connecting block, and the power air circuit and the air flow branch are interconnected with the second air flow groove.

[0018] Furthermore, the second airflow groove is an annular structure formed on the outer wall of the connecting block, and second sealing rings are provided on the upper and lower sides of the second airflow groove on the side wall of the connecting block. The second sealing ring is connected between the outer wall of the connecting block and the inner wall of the active cavity.

[0019] The beneficial effects of the anti-vibration fixture for planetary carrier turning and milling provided by the present invention are:

[0020] 1. The fixture fixes and centers the workpiece on the receiving surface through the cooperation between the inner support rod and the expansion part, effectively preventing the workpiece from moving or deflecting during the processing;

[0021] 2. It can complete turning and milling by turning and milling, which has higher work efficiency;

[0022] 3. The support bar clamps the processed parts, so that the fixture can provide clamping force for the processed parts during the processing, which can effectively prevent the tool from vibrating during milling and improve the stability of the processed parts during processing;

[0023] 4. The airtight detection structure can detect the fit between the workpiece and the receiving surface in real time, ensuring the fixation of the processed parts on the receiving surface, thereby ensuring the processing quality.

[0024] 5. The fixture realizes precise positioning, stable clamping and air tightness detection of the processed parts, thereby effectively improving the seismic resistance and processing accuracy of the processed parts during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0026] Figure 1 It is a schematic structural diagram of a seismic-resistant fixture for clamping processing parts in turning and milling processing of a planetary carrier according to the present invention;

[0027] Figure 2 It is a structural schematic diagram of a seismic-resistant fixture for turning and milling of a planetary carrier according to the present invention;

[0028] Figure 3 The present invention is a schematic cross-sectional structural diagram of a seismic-resistant fixture for turning and milling of a planetary carrier.

[0029] Description of reference numerals:

[0030] 1. Positioning seat; 11. Active cavity; 12. Piston rod; 121. Elastic member; 122. Limiting part; 123. Telescopic part; 13. Supporting pressure rod; 131. Fixing part; 132. Connecting part; 133. Supporting part; 134. Counterweight block; 14. Lever fixing block; 141. Hinge; 15. Connecting member; 16. Hollow cavity; 17. Air flow branch;

[0031] 2. receiving block; 21. receiving surface; 211. isolating groove; 22. positioning piece; 221. expansion part; 222. movable hole; 2221. guide section; 2222. expansion section; 23. inner support rod; 24. mounting hole; 25. limiting hole;

[0032] 3. Positioning flange;

[0033] 4. Connecting block; 41. First air flow groove; 42. First sealing ring; 43. Power air path; 44. Second air flow groove; 441. Second sealing ring;

[0034] 5. Machine tool spindle pull rod; 51. First air intake passage; 52. Second air intake passage;

[0035] 6. Airtight detection structure; 61. Detection gas path; 611. Inlet gas path; 612. Connecting gas path; 613. Outlet gas path; 62. Airtight detection hole;

[0036] 7. Processed parts; 71. Positioning holes; 72. Diamond pins. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0038] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0039] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0040] The present invention provides a seismic fixture for planetary carrier turning and milling, such as Figures 1 to 3 As shown, it includes a positioning seat 1 and a receiving block 2.

[0041] In this embodiment, the receiving block 2 includes a receiving surface 21, and the receiving surface 21 is provided with a positioning member 22, and the positioning member 22 includes an expansion portion 221 and a movable hole 222. An inner support rod 23 is slidably fitted in the movable hole 222, and the inner support rod 23 can be telescopically slid along the movable hole 222 to expand the expansion portion 221. In this embodiment, the receiving block 2 is provided with a mounting hole 24, and the positioning member 22 is fixed to the receiving block 2 through the mounting hole 24.

[0042] like Figure 3 As shown, in this embodiment, the movable hole 222 includes a guide section 2221 and an expansion section 2222, which accommodate and guide the sliding of the inner support rod 23. The expansion section 221 is an annular structure, and the expansion section 2222 is formed in the expansion section 221. The expansion section 2222 is set to a conical structure. The diameter of the expansion section 2222 gradually decreases along the side toward the guide section 2221, and the inner support rod 23 is set to a shape structure matching the movable hole 222.

[0043] In this embodiment, the expansion portion 221 extends in a direction away from the positioning seat 1 based on the supporting surface 21, and the inner support rod 23 slides along the side toward the positioning seat 1 to expand the expansion portion 221. In this embodiment, in the initial state, the inner support rod 23 is in an extended state. When in use, the processing part 7 is connected to the outer wall of the expansion portion 221 through its spline sleeve, and the inner support rod 23 is driven to slide in a direction away from the expansion portion 221, which can push the expansion portion 221 to expand outward, generate an expansion force, and realize the centering and fixation of the processing part 7 on the supporting surface 21, ensuring the stability and accuracy of the processing part 7 during the processing, which helps to improve the processing accuracy and product quality, and does not require additional clamps or bolts. It is easy to operate and the fixing effect is stable and reliable. In this embodiment, relative to processing parts 7 with different spline shapes and sizes, it is only necessary to adjust the sliding distance of the inner support rod 23 to adapt to different fixing requirements.

[0044] It should be noted that the expansion part 221 is a prior art, and the inner support rod 23 slides to push the expansion part 221 to expand outward, thereby generating an expansion force. Those skilled in the art should be aware of its structure, principle, and method of use, etc., which will not be described in detail here.

[0045] In this embodiment, the positioning seat 1 is provided with a movable cavity 11, and a connecting block 4 is provided in the movable cavity 11. The connecting block 4 is slidably matched with the inner wall of the movable cavity 11, and the inner support rod 23 is linked to the connecting block 4. In this embodiment, the ejection end of the inner support rod 23 is movably matched with the expansion part 221, and the tail end of the inner support rod 23 (that is, the end away from the processing part 7) is fixedly connected to the connecting block 4, and the connecting block 4 is fixedly connected to the machine tool spindle pull rod 5. The machine tool spindle pull rod 5 drives the connecting block 4 to slide along the inner wall of the movable cavity 11, thereby driving the inner support rod 23 to slide and retract along the movable hole 222.

[0046] In this embodiment, the positioning seat 1 is fixedly mounted on the positioning flange 3 of the machine tool. When the part 7 is turned and milled, the machine tool drives the positioning flange 3 and the positioning seat 1 to rotate synchronously, realizing the turning and milling compound to complete the turning and milling, and the work efficiency is higher. In this embodiment, the central axes of the positioning seat 1, the positioning flange 3, the machine tool spindle rod 5, and the connecting block 4 coincide with each other. When the part 7 is turned and milled, the positioning seat 1 rotates with its central axis as the center of the circle. It should be noted that in this embodiment, when the positioning seat 1 rotates, the machine tool spindle rod 5 and the connecting block 4 rotate synchronously, and the machine tool spindle rod 5 is mainly used to drive the connecting block 4 to slide back and forth along its axial direction.

[0047] In this embodiment, the fixture further includes an airtight detection structure 6, which includes a detection gas path 61 and an airtight detection hole 62. The airtight detection hole 62 is formed on the receiving surface 21 to detect whether the workpiece is in contact with the receiving surface 21. It should be noted that in this embodiment, when the processed part 7 is fixed on the receiving surface 21, the processed part 7 is in contact with the receiving surface 21, and the airtight detection structure 6 determines whether the end face of the part is in close contact with the receiving surface 21 by detecting the gas leakage of the airtight detection hole 62. If the gas leakage is controlled within the specified range, it is considered that the part is in contact with the fixture, and the equipment starts processing. If it is not in contact, the equipment will alarm and stop processing.

[0048] In this embodiment, an isolation groove 211 may be provided on the receiving surface 21, and the isolation groove 211 matches the protruding structure on the processed part 7. When the processed part 7 is fixed on the receiving surface 21, the protruding structure on its surface is placed in the isolation groove 211, and the airtight detection hole 62 is arranged to avoid the isolation groove 211 to ensure that the end face of the processed part 7 fits the receiving surface 21, thereby ensuring the stability of the processed part 7 during processing on the receiving surface 21, and does not affect the detection of the airtight detection structure 6.

[0049] like Figure 3 As shown, in this embodiment, the detection gas circuit 61 includes an air inlet circuit 611, a connecting gas circuit 612, and an air outlet circuit 613. The air inlet circuit 611 is located in the connecting block 4, and the connecting gas circuit 612 is located in the positioning seat 1. The side wall of the connecting block 4 is provided with a first air flow groove 41. The air inlet circuit 611 and the connecting gas circuit 612 are interconnected with the first air flow groove 41. The connecting gas circuit 612, the air outlet circuit 613, and the airtight detection hole 62 are sequentially connected. When the airtight detection structure 6 is used, air is inhaled through the air inlet circuit 611, and the air flow passes through the air flow groove, the connecting gas circuit 612, and the air outlet circuit 613 in sequence to reach the airtight detection hole 62. In this embodiment, a first air inlet passage 51 is provided on the machine tool spindle pull rod 5, and the air flow flows to the air inlet circuit 611 on the connecting block 4 through the first air inlet passage 51 on the machine tool spindle pull rod 5.

[0050] In this embodiment, the first airflow groove 41 is an annular structure formed on the outer wall of the connecting block 4. A first sealing ring 42 is provided on the upper and lower sides of the first airflow groove 41 on the side wall of the connecting block 4. The first sealing ring 42 is connected between the outer wall of the connecting block 4 and the inner wall of the active cavity 11 to ensure the flow direction of the airflow.

[0051] It should be noted that, in this embodiment, the width of the air flow groove is set to ensure that the connecting air path 612 can be connected to the air flow groove after the connecting block 4 drives the inner support rod 23 to slide downward, thereby ensuring that when the processed part 7 is fixed on the supporting surface 21, the air flow flows along the detection air path 61 to reach the airtight detection hole 62.

[0052] In this embodiment, a telescopic and slidable piston rod 12 is provided on the positioning seat 1, and the piston rod 12 is rotatably connected to a support rod 13. The support rod 13 includes two groups, and the two groups of support rods 13 are respectively located on both sides of the receiving block 2. A lever fixing block 14 is provided on the side wall of the positioning seat 1. The support rod 13 is rotatably connected to the lever fixing block 14, so that the support rod 13 can rotate with the connection point between it and the lever fixing block 14 as the center of the circle. In this embodiment, a hinge 141 is provided on the side of the lever fixing block 14 facing the support rod 13, and the two ends of the hinge 141 are respectively hingedly connected to the support rod 13 and the lever fixing block 14. During the process of the piston rod 12 telescopically sliding to drive the support rod 13 to rotate, the rotation center of the support rod 13 is on the hinge 141, ensuring the flexibility and stability of the support rod 13 during the rotation process. As the support rod 13 rotates, its two ends will move away from or close to the receiving block 2 accordingly, thereby realizing the clamping, support or pressure adjustment function of the processed part 7.

[0053] In this embodiment, the side wall of the positioning seat 1 is fixedly connected with a connecting piece 15, and the connecting piece 15 is provided with a hollow cavity 16. The piston rod 12 and the hollow cavity 16 can be telescopically slidably matched. The outer wall of the piston rod 12 is sleeved with an elastic piece 121, so that the piston rod 12 can be elastically telescopic along the hollow cavity 16. The piston rod 12 includes a limiting portion 122 and a telescopic portion 123. The limiting portion 122 and the telescopic portion 123 are fixedly connected and have a T-shaped structure. The limiting portion 122 is located in the hollow cavity 16. The telescopic portion 123 extends out of the connecting piece 15 and is rotatably connected to the support pressure rod 13. The elastic piece 121 is sleeved on the outer wall of the telescopic portion 123, and the elastic piece 121 is abutted and connected between the limiting portion 122 and the inner wall of the hollow cavity 16. In this embodiment, the rotatable connection between the telescopic portion 123 and the support pressure rod 13 is realized by a pin hinge connection.

[0054] In this embodiment, a power air circuit 43 is provided in the connecting block 4, an air flow branch 17 interconnected with the hollow cavity 16 is provided on the positioning seat 1, and a second air flow groove 44 is provided on the side wall of the connecting block 4. The power air circuit 43 and the air flow branch 17 are interconnected with the second air flow groove 44. The air flow reaches the hollow cavity 16 through the power air circuit 43, the second air flow groove 44 and the air flow branch 17 in sequence, and pushes the piston rod 12 to slide in a direction away from the positioning seat 1 under the action of air pressure. At this time, the elastic member 121 is compressed, and the fixing portion 131 is pushed synchronously with the piston rod 12, driving the support pressure rod 13 to rotate. The moving direction of the supporting portion 133 on the support pressure rod 13 is opposite to the moving direction of the fixing portion 131, that is, when the fixing portion 131 moves in a direction away from the positioning seat 1, the supporting portion 133 moves in a direction close to the positioning seat 1, so that the support pressure rod 13 can stably support the processed part 7. In this embodiment, a second air intake passage 52 is provided on the machine tool spindle rod 5 , and air flows into the power air path 43 on the connecting block 4 through the second air intake passage 52 on the machine tool spindle rod 5 .

[0055] In this embodiment, the elastic member 121 is a spring. When the machining of the machining part 7 is completed, the airflow reverses and the piston rod 12 is reset under the action of the elastic member 121 .

[0056] In this embodiment, the second air flow groove 44 is an annular structure formed on the outer wall of the connecting block 4. A second sealing ring 441 is provided on the upper and lower sides of the second air flow groove 44 on the side wall of the connecting block 4. The second sealing ring 441 is connected between the outer wall of the connecting block 4 and the inner wall of the active cavity 11 to ensure the flow direction of the airflow.

[0057] In this embodiment, the support pressure rod 13 includes a fixing portion 131, a connecting portion 132, and a supporting portion 133. The fixing portion 131 and the supporting portion 133 are respectively fixedly connected to both ends of the connecting portion 132. The fixing portion 131 is hingedly connected to the piston rod 12, the connecting portion 132 is hingedly connected to the hinge 141, and the supporting portion 133 corresponds to the positioning member 22. Based on the connecting portion 132, the fixing portion 131 and the supporting portion 133 are both tiltedly arranged along the connecting portion 132 to ensure that when the support pressure rod 13 rotates, the moving directions of the fixing portion 131 and the supporting portion 133 are opposite. Based on the central axis of the positioning seat 1, the distance between the supporting portion 133 and the central axis of the positioning seat 1 is smaller than the distance between the fixing portion 131 and the central axis of the positioning seat 1. During the rotation of the positioning seat 1, the rotation radius of the supporting portion 133 is small, so the centrifugal force generated is also relatively small. The centrifugal force generated by the fixing portion 131 is greater than the centrifugal force generated by the supporting portion 133, so that the support pressure rod 13 can clamp the processed part 7 more firmly.

[0058] It should be noted that the clamping force of the support rod 13 comes from the air pressure, and the clamping force generated by the air pressure is relatively small, so slight vibration and vibration of the cutter will still occur during high-speed rotation, and the turning speed can only be reduced, but the efficiency will be reduced. In order to achieve high-speed and high-efficiency turning of parts, in this embodiment, a counterweight block 134 is provided at the end of the support rod 13 away from the receiving block 2, that is, a counterweight block 134 is provided on the fixed portion 131, so that the center of gravity of the support rod 13 is on the counterweight block 134. Under the action of the counterweight block 134, when the positioning seat 1 rotates, the centrifugal force generated by the fixed portion 131 can be further increased, and the centrifugal force generated by the support portion 133 can be reduced, so that the clamping force generated by the support portion 133 on the processed part 7 is increased, thereby achieving high-speed and high-efficiency turning.

[0059] In this embodiment, a positioning hole 71 is provided on the processing part 7, and a limiting hole 25 is provided on the receiving block 2. The limiting hole 25 corresponds to the positioning hole 71. The diamond pin 72 passes through the positioning hole 71 and is inserted into the limiting hole 25 to play an auxiliary positioning and fixing role.

[0060] In this embodiment, the support pressure rods 13 include four groups, and the four groups of support pressure rods 13 are respectively located at the front side, rear side, left side and right side of the processing part 7, so that the processing part 7 is clamped between the four groups of support pressure rods 13. In other embodiments, the support pressure rods 13 can be set to three groups or other forms, and are evenly distributed along the circumferential direction with the processing part 7 as the center.

[0061] The working principle of the seismic-resistant clamp for planetary carrier turning and milling provided by the present invention is as follows: the workpiece is placed on the receiving surface 21 of the receiving block 2, and the workpiece is preliminarily positioned by the expansion portion 221 and the inner support rod 23 structure in the positioning member 22, and the inner support rod 23 is telescopically slid along the movable hole 222 to expand the expansion portion 221, thereby tightly clamping the workpiece; air is supplied to the power air circuit 43, and the air pressure in the hollow cavity 16 pushes the piston rod 12 to slide, driving the supporting pressure rod 13 to rotate, and the supporting pressure rod 13 is clamped on the outer wall of the processed part 7 to support the part to prevent the tool from vibrating during milling; the airtight detection structure 6 is started, and air is supplied to the detection air circuit 61, and the gas leakage of the airtight detection hole 62 is detected to determine whether the end face of the part is in close contact with the receiving surface 21. If the gas leakage is controlled within the specified range, it is considered that the part is flush with the clamp, and the equipment starts processing. If it is not flush, the equipment will alarm and stop processing.

[0062] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0063] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A seismic fixture for planetary carrier turning and milling, characterized in that: Including positioning seat and receiving block; The receiving block includes a receiving surface, the receiving surface is provided with a positioning piece, the positioning piece includes an expansion part and a movable hole, an inner support rod is slidably matched in the movable hole, and the inner support rod can be telescopically slidable along the movable hole to expand the expansion part; A retractable and slidable piston rod is provided on the positioning seat, and the piston rod is rotatably connected to a support pressure rod, and the support pressure rod includes two groups, and the two groups of support pressure rods are respectively located on both sides of the receiving block. A lever fixing block is provided on the side wall of the positioning seat, and the support pressure rod is rotatably connected to the lever fixing block, so that the support pressure rod can rotate with its connection point with the lever fixing block as the center of the circle; It also includes an airtight detection structure, which includes a detection air path and an airtight detection hole. The airtight detection hole is formed on the receiving surface to detect whether the workpiece is in contact with the receiving surface.

2. The anti-vibration fixture for turning and milling of a planetary carrier according to claim 1, characterized in that: A hinge is arranged on one side of the lever fixing block facing the supporting pressure rod, and two ends of the hinge are respectively hingedly connected with the supporting pressure rod and the lever fixing block, and a counterweight block is arranged on one end of the supporting pressure rod away from the receiving block.

3. The anti-vibration fixture for planetary carrier turning and milling according to claim 2, characterized in that: The supporting pressure rod includes a fixed part, a connecting part, and a supporting part. The fixed part and the supporting part are respectively fixedly connected to two ends of the connecting part. The fixed part is hingedly connected to the piston rod, the connecting part is hingedly connected to the hinge, and the supporting part corresponds to the positioning part. Based on the connecting part, the fixed part and the supporting part are both arranged obliquely along the connecting part. Based on the central axis of the positioning seat, the distance between the supporting part and the central axis of the positioning seat is smaller than the distance between the fixed part and the central axis of the positioning seat.

4. The anti-vibration fixture for turning and milling of a planetary carrier according to any one of claims 1 to 3, characterized in that: The positioning seat is provided with an active cavity, a connecting block is provided in the active cavity, the connecting block is slidably matched with the inner wall of the active cavity, and the inner support rod is linked to the connecting block.

5. The anti-vibration fixture for turning and milling of a planetary carrier according to claim 4, characterized in that: The detection air circuit includes an air inlet air circuit, a connecting air circuit, and an air outlet air circuit. The air inlet air circuit is located in the connecting block, the connecting air circuit is located in the positioning seat, and a first air flow groove is provided on the side wall of the connecting block. The air inlet air circuit and the connecting air circuit are interconnected with the first air flow groove, and the connecting air circuit, the air outlet air circuit, and the airtight detection hole are connected in sequence.

6. The anti-vibration fixture for turning and milling of a planetary carrier according to claim 5, characterized in that: The first airflow groove is an annular structure formed on the outer wall of the connecting block. First sealing rings are arranged on the upper and lower sides of the first airflow groove on the side wall of the connecting block. The first sealing ring is connected between the outer wall of the connecting block and the inner wall of the active cavity.

7. The anti-vibration fixture for turning and milling of a planetary carrier according to claim 4, characterized in that: The side wall of the positioning member is fixedly connected with a connecting member, which is provided with a hollow cavity. The piston rod and the hollow cavity can be telescopically slidably matched, and an elastic member is sleeved on the outer wall of the piston rod to enable the piston rod to elastically telescope along the hollow cavity.

8. The anti-vibration fixture for turning and milling of a planetary carrier according to claim 7, characterized in that: The piston rod includes a limiting part and a telescopic part. The limiting part is fixedly connected to the telescopic part and presents a T-shaped structure. The limiting part is located in the hollow cavity. The telescopic part extends out of the connecting piece and is rotatably connected to the supporting pressure rod. The elastic part is sleeved on the outer wall of the telescopic part, and the elastic part is connected between the limiting part and the inner wall of the hollow cavity.

9. The anti-vibration fixture for turning and milling of a planetary carrier according to claim 7, characterized in that: A power air circuit is arranged in the connection block, an air flow branch interconnected with the hollow cavity is arranged on the positioning seat, a second air flow groove is arranged on the side wall of the connection block, and the power air circuit and the air flow branch are interconnected with the second air flow groove.

10. The anti-vibration fixture for turning and milling of a planetary carrier according to claim 9, characterized in that: The second air flow groove is an annular structure formed on the outer wall of the connecting block. Second sealing rings are arranged on the upper and lower sides of the second air flow groove on the side wall of the connecting block. The second sealing ring is connected between the outer wall of the connecting block and the inner wall of the active cavity.

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