Internal polishing device for metal part machining

Abstract

The utility model relates to the technical field of part machining, in particular to an internal polishing device for metal part machining, which comprises a feeding component mounted on an operation table, a positioning component positioned below the feeding component and a blanking component positioned at the tail end, the feeding assembly comprises a vertical frame, an inner plate and an outer plate which are oppositely distributed are fixed to the vertical frame, a stirring part is installed on the inner side of the vertical frame, and convex edges are formed on the opposite sides of the inner plate and the outer plate. According to the internal polishing device for machining the metal parts, through linkage of the feeding assembly, the positioning assembly and the discharging assembly, automation of the whole process of conveying, positioning and discharging of the parts is achieved, manual intervention is not needed, the machining period is greatly shortened, and the production efficiency is improved; and the driving motor is matched with the downward pushing air cylinder, so that stable feeding of the polishing head is achieved, the polishing head extends into the part, the consistency of the polishing force and the angle is guaranteed, and the polishing quality and the product percent of pass are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, specifically to an internal polishing device for metal parts processing. Background Technology

[0002] In high-end manufacturing fields such as aerospace, automobile manufacturing, and precision instruments, aluminum alloy convex tube joints have become key basic components due to their excellent lightweight characteristics and good mechanical properties. The internal polishing quality at the head end directly affects the joint's sealing performance, connection strength, and fluid transmission efficiency, and is a core process that determines product performance.

[0003] However, the current industry still generally uses manual operation for polishing the internal parts of aluminum alloy convex tube joints. Operators need to accurately install the metal parts one by one on the positioning table, and use hand-held polishing tools to go deep into the inside of the joint to polish them. After polishing, the parts are then unloaded. In this process, manual positioning and operation are not only time-consuming and labor-intensive, but also significantly lengthen the processing cycle of a single part, which seriously restricts the improvement of production efficiency. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: an internal polishing device for processing metal parts, comprising a feeding assembly installed on an operating table, a positioning assembly located below the feeding assembly, and a unloading assembly located at the tail end;

[0005] The feeding assembly includes a stand, on which inner and outer plates are fixedly arranged, and a feeding part is installed on the inner side. The inner and outer plates have protruding edges on opposite sides, and there is a distance between the protruding edges to form a walkway.

[0006] A top frame is fixed to the top of the upright, and a push cylinder is installed on the top frame. A drive motor is installed at the top end of the push cylinder. A rotating rod is fixed to the drive shaft of the drive motor, passing through the upright and extending to the walkway. A polishing head is installed at the bottom of the rotating rod.

[0007] The positioning assembly includes a middle plate, on which a clamping part is mounted. Each clamping end of the clamping part is fixed with a clamping block that slides with the middle plate and is located below the polishing head.

[0008] Furthermore, the support frame is equipped with a first-push cylinder and a fixed baffle. The piston rod of the first-push cylinder is fixed with a lifting block that can be attached to the baffle and connected to the walkway. The lifting block has an inverted convex groove.

[0009] Furthermore, the feeding section includes a push cylinder installed inside the upright frame, and a slide plate that is fixed to the piston rod of the push cylinder. An ejection cylinder is installed at the bottom of the slide plate, and an ejection plate that is fixed to the piston rod of the ejection cylinder. A plurality of recessed plates that can extend to the top of the walkway are fixed at the bottom of the ejection plate.

[0010] Furthermore, the clamping part includes a push cylinder mounted on the middle plate. A T-shaped block is fixed on the piston rod of the push cylinder. Double hinge plates are hinged to both the front and rear sides of the T-shaped block. The other end of the double hinge plates is hinged to the middle plate and to the corresponding clamping block.

[0011] Furthermore, the unloading assembly includes an unloading plate, a lead screw device is mounted on the unloading plate, a lifting plate that slides with the unloading plate is fixed to the nut end of the lead screw device, an ejector plate slides on the lifting plate, and an ejector cylinder is mounted to drive the ejector plate to move laterally. A clamping cylinder is mounted on the ejector plate.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This internal polishing device for metal parts processing automates the entire process from conveying, positioning, and unloading parts through the linkage of the feeding, positioning, and unloading components. It requires no manual intervention, significantly shortens the processing cycle, and improves production efficiency. The top-push cylinder of the clamping part drives the double-hinged plate linkage structure, which drives the clamping block to hold and fix the lower part of the part. The drive motor and the down-push cylinder work together to achieve stable feeding of the polishing head, extending it into the part and ensuring the consistency of polishing force and angle, effectively improving polishing quality and product qualification rate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the inner and outer plate connection structure in this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the material feeding part in this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the positioning component in this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the feeding component in this utility model.

[0019] In the diagram: 1. Upright frame; 2. Feeding section; 21. Slide plate; 22. Pushing cylinder; 23. Pushing cylinder; 24. Pushing plate; 25. Concave plate; 3. Unloading assembly; 31. Unloading plate; 32. Screw assembly; 33. Lifting plate; 34. Ejection cylinder; 35. Ejection plate; 36. Clamping cylinder; 4. First push cylinder; 5. Baffle; 6. Lifting block; 7. Inner plate; 8. Outer plate; 9. Positioning assembly; 91. Middle plate; 92. Pushing cylinder; 93. Double hinge plate; 94. Clamping block; 10. Top frame; 11. Downward push cylinder; 12. Drive motor; 13. Rotating rod; 14. Polishing head. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 An internal polishing device for processing metal parts in this embodiment includes a stand 1 fixed on an operating table, a positioning component 9 located below the stand 1, and a feeding component 3 located at the tail end of the stand 1. A feeding component is installed on the stand 1, and a top frame 10 is fixed on the top. A downward pushing cylinder 11 is installed on the top of the top frame 10. A drive motor 12 is fixed to the ejector end of the downward pushing cylinder 11. A rotating rod 13 that passes through the top frame 10 and the stand 1 is fixed to the drive shaft of the drive motor 12. A polishing head 14 located above the feeding component is fixed to the bottom of the rotating rod 13.

[0022] In the above structure, the feeding component enables automated forward transport of parts, while positioning the parts between the positioning component and the polishing head. The positioning component fixes the parts in place, and the drive motor and the downward-pushing cylinder work together to drive the polishing head to polish the inside of the parts. After completion, the parts are continuously transported and then collected by the unloading component or moved to the next process. Therefore, the entire process of parts transportation, positioning and unloading is automated without human intervention, which greatly shortens the processing cycle and improves production efficiency.

[0023] like Figure 2 and 3 The feeding assembly includes an inner plate 7 and an outer plate 8 fixed to the bottom of the upright 1 and distributed opposite each other. The inner plate and the outer plate form a convex edge on opposite sides, and the distance between the convex edges forms a walkway for conveying parts. The upright 1 is also equipped with a feeding part 2 that drives the parts to move on the walkway. The feeding part 2 includes a push cylinder 22 fixed to the inside of the upright 1, a slide plate 21 fixed to the piston rod of the push cylinder and sliding on the inside of the upright 1, an ejection cylinder 23 installed at the bottom of the slide plate 21, and an ejection plate 24 slid at the bottom and fixed to the piston rod of the ejection cylinder. The bottom of the ejection plate is fixed with not less than seven concave plates 25 that can extend to the top of the walkway. Through the linkage of the push cylinder and the ejection cylinder, the slide plate and the ejection plate are driven to move, so as to realize the feeding of parts one by one.

[0024] The support frame 1 is equipped with a first-push cylinder 4 located below the first end of the walkway and a fixed baffle 5. The piston rod of the first-push cylinder 4 is fixed with a lifting block 6 that can be attached to the baffle 5 and align with the walkway. The lifting block 6 has an inverted convex groove. In the initial state, the lifting block is attached to the baffle, and the baffle blocks the back of the lifting block, so that when external parts are moved in, they can enter the inverted convex groove. The height of the parts is also greater than the groove. Then, the first-push cylinder drives the lifting block to lift it up, so that the inverted convex groove aligns with the walkway, thereby forming a pre-placed part conveying. Then, it is pushed into the walkway by the feeding part.

[0025] like Figure 4 The positioning component 9 includes a middle plate 91 fixed to the operating table. The middle plate 91 is located below the walkway and below the polishing head. A push cylinder 92 is fixed on the middle plate 91, and two sets of opposing clamping blocks 94 slide on its top. A T-shaped block is fixed to the piston rod of the push cylinder 92. Double hinge plates 93 are hinged to both the front and rear sides of the T-shaped block. The other end of the double hinge plates is hinged to the middle plate and the clamping blocks 94, respectively. By extending and retracting the push cylinder, the double hinge plates are driven to move the clamping blocks along the middle plate, thereby achieving automatic clamping and releasing of the parts.

[0026] like Figure 5 The unloading assembly 3 includes an unloading plate 31 fixed to the operating table. A lead screw device 32 is installed on the surface of the unloading plate 31. A lifting plate 33 that slides with the unloading plate 31 is fixed to the nut end of the lead screw device 32. An ejector plate 35 is slidably mounted on the lifting plate, and an ejector cylinder 34 that pushes the ejector plate 35 is fixedly mounted to drive the ejector plate to move laterally. A clamping cylinder 36 is installed on the ejector plate. The height of the lifting plate is adjusted by the lead screw device. In conjunction with the ejector cylinder and the clamping cylinder, the automatic gripping and unloading of polished parts is realized.

[0027] The working principle of the above embodiments is as follows:

[0028] Initially, the first push cylinder is retracted, the lifting block is located below the first end of the walkway, its top surface is lower than the bottom surface of the walkway, the inverted convex groove is disconnected from the walkway, and the baffle is fixed in front of the lifting block to prevent the part from moving forward. The first push cylinder extends, driving the lifting block to rise until it is flush with the bottom surface of the walkway, the convex groove connects with the walkway, and at the same time the lifting block separates from the baffle, pushing the part in the groove to the designated position at the first end of the walkway. The push cylinder drives the push plate to push out, and the part in the convex groove is located in the concave plate. Then, by extending the push cylinder, the sliding plate is driven to move forward along the inner side of the upright, driving the push plate and the concave plate to move forward simultaneously. The concave plate inserts into the walkway and hooks the edge of the upper end of the part, such as the head of a convex tube. With the cyclical cooperation of the push cylinder and the push cylinder, the part continues to be pushed along... The walkway moves towards the positioning component until the part is directly below the polishing head. The push cylinder extends, and the T-block drives the two clamping blocks on both sides to slide synchronously towards the center through the double hinge plate, clamping the straight pipe section at the bottom of the part, such as the convex tube, to ensure that the part is stable and does not move during polishing. The push cylinder drives the drive motor and rotating rod to descend, so that the polishing head extends into the inside of the part's head opening. The drive motor starts, driving the polishing head to grind and polish the inner wall. After polishing is completed, the push cylinder drives the polishing head to reset, the push cylinder retracts, the clamping blocks release the part, and at the same time, the part is moved to the end of the walkway in the material feeding section. The screw device drives the lifting plate to move vertically to ensure that the clamping cylinder corresponds to the position of the part and clamps it. The clamping and transfer of the part is completed through the linkage of the screw and the push cylinder.

[0029] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0030] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An internal polishing device for machining metal parts, characterized in that: It includes a feeding assembly installed on the operating table, a positioning assembly (9) located below the feeding assembly, and a discharge assembly (3) located at the tail end; The feeding assembly includes a stand (1), on which an inner plate (7) and an outer plate (8) are fixed and oppositely distributed, and a feeding part (2) is installed on the inner side. The inner plate (7) and the outer plate (8) have protruding edges on opposite sides, and there is a distance between the protruding edges to form a walkway. A top frame (10) is fixed to the top of the upright frame (1). A push cylinder (11) is installed on the top frame (10). A drive motor (12) is installed at the top end of the push cylinder (11). A rotating rod (13) is fixed to the drive shaft of the drive motor (12) through the upright frame (1) and extending to the walkway. A polishing head (14) is installed at the bottom of the rotating rod (13). The positioning assembly (9) includes a middle plate (91), on which a clamping part is mounted. Each clamping end of the clamping part is fixed with a clamping block (94) that slides with the middle plate (91) and is located below the polishing head (14).

2. The internal polishing device for processing metal parts according to claim 1, characterized in that: The support frame (1) is equipped with a first-push cylinder (4) and a baffle (5) fixed on it. The piston rod of the first-push cylinder (4) is fixed with a lifting block (6) that can be attached to the baffle (5) and connected to the walkway. The lifting block (6) has an inverted convex groove.

3. The internal polishing device for processing metal parts according to claim 2, characterized in that: The feeding section (2) includes a push cylinder (22) installed inside the upright (1) and a slide plate (21) that is fixed to the piston rod of the push cylinder (22). A push cylinder (23) is installed at the bottom of the slide plate (21) and a push plate (24) that is fixed to the piston rod of the push cylinder (23) slides thereon. A plurality of recessed plates (25) that can extend to the top of the walkway are fixed at the bottom of the push plate (24).

4. The internal polishing device for processing metal parts according to claim 1, characterized in that: The clamping part includes a push cylinder (92) mounted on the middle plate (91). A T-shaped block is fixed on the piston rod of the push cylinder (92). Double hinge plates (93) are hinged to both the front and rear sides of the T-shaped block. The other end of the double hinge plate (93) is hinged to the middle plate (91) and to the corresponding clamping block (94).

5. The internal polishing device for processing metal parts according to claim 1, characterized in that: The feeding assembly (3) includes a feeding plate (31), a screw device (32) is installed on the feeding plate (31), a lifting plate (33) that slides with the feeding plate (31) is fixed at the nut end of the screw device (32), an ejector plate (35) slides on the lifting plate (33), and an ejector cylinder (34) is installed to drive the ejector plate (35) to move laterally. A clamping cylinder (36) is installed on the ejector plate (35).

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