Running-in device for non-full-cycle reciprocating swing element

Abstract

The running-in device specifically comprises a first supporting seat and a second supporting seat which are arranged in a spaced mode, a workpiece to be run-in is installed on the second supporting seat through a tool shell, a driving shaft is arranged on the first supporting seat, one end of the driving shaft is driven by a driving device, and the other end of the driving shaft is driven by a driving motor. The other end of the driving shaft is connected with a running-in main shaft through a driving connecting rod mechanism, one end of the running-in main shaft is nested in a to-be-running-in workpiece, the driving shaft drives the connecting rod mechanism to drive the running-in main shaft to rotate in a reciprocating mode, and the contact face of the running-in main shaft and the to-be-running-in workpiece is a grinding part; therefore, the grinding work of the inner surface of the to-be-ground workpiece can be achieved through the grinding main shaft, the grinding efficiency is improved, grinding of continuous reciprocating motion is achieved through driving of the driving shaft, and the grinding efficiency is greatly improved. The hand-cranking driving structure is adopted as a driving source of the driving shaft to drive the driving shaft, the overall running-in structure is simplified, the cost of the overall equipment is reduced, and the overall equipment is convenient to carry.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical hydraulics, and in particular relates to a running-in device for a non-full-circle reciprocating swing element. Background Art

[0002] At present, in the field of non-full-circumference reciprocating hydraulic components, some reciprocating components use blade devices to isolate and seal the high and low pressure chambers of the product. In order to limit the forward and reverse reciprocating swing angles of the spindle blades, a mechanical limit structure is designed in the shell cavity that cooperates with the spindle blades. Therefore, the shell cavity is a non-full-circumference structure. In order to ensure reliable sealing and flexible rotation between the spindle blades and the shell cavity, the shape and position tolerances and surface roughness of the shell cavity are particularly high. In order to meet the design requirements during the production process, the surface of the shell cavity is generally processed by coordinate grinding or slow wire cutting. This results in particularly high processing costs for parts and low processing efficiency. After completing the fine grinding, the precision measurement is performed and the parts need to be re-clamped and polished, which cannot guarantee the accuracy and is time-consuming and labor-intensive. Therefore, there is an urgent need for a structure that can improve the running-in efficiency of non-full-circumference reciprocating hydraulic components to improve work efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a grinding device for non-full-circumference reciprocating oscillating elements to overcome the problems of high cost of coordinate grinding or slow wire cutting in the prior art and low efficiency of manual operation when grinding is required.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A running-in device for a non-full-circle reciprocating oscillating element comprises a first support seat and a second support seat arranged at intervals, the second support seat being used to mount a workpiece to be run-in via a tooling shell, a driving shaft being arranged on the first support seat, one end of the driving shaft being driven by a driving device, and the other end of the driving shaft being connected to a running-in spindle via a driving connecting rod mechanism, one end of the running-in spindle being embedded in the workpiece to be run-in.

[0005] Preferably, the driving device includes a driving handle, which is connected to one end of the driving shaft via a driving handle rocker arm, and the driving handle rocker arm is vertically connected to the driving handle and the driving shaft respectively.

[0006] Preferably, the driving device adopts a motor driving structure.

[0007] Preferably, the tooling shell includes an outer shell and an inner shell, the workpiece to be run-in is clamped and fixed by the outer shell and the inner shell, the outer rings of the outer shell and the inner shell are both provided with bolt holes, the second support seat is provided with fixing holes, and the outer shell and the inner shell are fixed to the second support seat by bolts.

[0008] Preferably, the first support seat and the second support seat are fixed on the same mounting base.

[0009] Preferably, the driving connecting rod mechanism includes a driving rod, a rotating connecting rod and a rotating output shaft, one end of the driving rod is fixedly connected to the driving shaft, the other end of the driving rod is connected to one end of the rotating connecting rod through a first rotating shaft, the driving rod and the rotating connecting rod are arranged in parallel, the other end of the rotating connecting rod is rotatably connected to one end of the rotating output shaft through a second rotating shaft, the rotating connecting rod is arranged in parallel to the rotating output shaft, and the other end of the rotating output shaft is fixedly connected to the running-in spindle.

[0010] Preferably, the running-in spindle is provided with spindle blades, and the tooling housing is provided with a housing inner cavity limit platform for limiting the spindle blades.

[0011] Preferably, a first cushion block is provided on the first rotating shaft between the driving rod and the rotating connecting rod, one end of the first rotating shaft is a boss structure, and the other end of the first rotating shaft is limited by a second retaining ring.

[0012] Preferably, a second cushion block is provided on the second rotating shaft between the rotating connecting rod and the rotating output shaft, one end of the second rotating shaft is a boss structure, and the other end of the second rotating shaft is limited by a third retaining ring.

[0013] Preferably, the swing angle α of the running-in spindle 2 With L 1 , L 2 , L 3 , α 1 The functional relationship between them is:

[0014] Where:

[0015]

[0016] ; α 1 L is the angle at which the driving handle rotates around the driving shaft; 1 is the rotation radius of the rotating connecting rod; L 3 L is the rotation radius of the rotating output shaft; 2 is the turning radius of the driving rod.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention provides a running-in device for a non-full-circle reciprocating oscillating element, which specifically comprises a first support seat and a second support seat which are arranged at intervals, wherein the second support seat is used to mount a workpiece to be run-in via a tooling shell, and a driving shaft is arranged on the first support seat, wherein one end of the driving shaft is driven by a driving device, and the other end of the driving shaft is connected to a running-in spindle via a driving connecting rod mechanism, wherein one end of the running-in spindle is embedded in the workpiece to be run-in, and the driving shaft drives the connecting rod mechanism to drive the running-in spindle to reciprocate, and the contact surface between the running-in spindle and the workpiece to be run-in is a grinding portion, so that the running-in spindle can be used to grind the inner surface of the workpiece to be run-in, thereby improving the grinding efficiency, and continuous reciprocating grinding is achieved by driving the driving shaft, thereby greatly improving the grinding efficiency.

[0018] Preferably, a hand-cranked drive structure is used as the driving source of the drive shaft to drive the drive shaft, which simplifies the overall running-in structure and reduces the cost of the overall equipment; and a driving handle structure is used, so that the overall equipment is easy to carry.

[0019] Preferably, a rotating connecting rod is used as a connecting rotating structure between the driving rod and the rotating output shaft, so that continuous rotation can be achieved while realizing the reciprocating motion of the running-in main shaft 12. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of a running-in device for a non-full-circumference reciprocating oscillating element in an embodiment of the present invention.

[0021] Figure 2 Schematic diagram of the installation structure of the running-in spindle in an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of a running-in device for a non-full-circumference reciprocating oscillating element in an embodiment of the present invention.

[0023] In the figure, 1. driving handle; 2. driving handle rocker arm; 3. driving shaft; 4-1. first rotating shaft; 4-2. second rotating shaft; 5-1. first retaining ring; 5-2. second retaining ring; 5-3. third retaining ring; 6. driving rod; 7-1. first cushion block; 7-2. second cushion block; 8. rotating connecting rod; 9. rotating output shaft; 10. inner shell; 11. workpiece to be run-in; 12. running-in spindle; 13. outer shell; 14. second support seat; 15. mounting base; 16. first support seat; 17. spindle blade; 18. shell inner cavity limit table. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] like Figures 1 to 3 As shown, the present invention provides a running-in device for non-full-circle reciprocating oscillating elements, specifically comprising a first support seat 16 and a second support seat 14 which are arranged at intervals, the second support seat 14 being used to install a workpiece 11 to be run-in through a tooling shell, a driving shaft 3 being provided on the first support seat 16, one end of the driving shaft 3 being driven by a driving device, the other end of the driving shaft 3 being connected to a running-in spindle 12 through a driving connecting rod mechanism, one end of the running-in spindle 12 being embedded in the workpiece 11 to be run-in, the driving shaft 3 driving the connecting rod mechanism to drive the running-in spindle 12 to reciprocate, the contact surface between the running-in spindle 12 and the workpiece 11 to be run-in is a grinding portion, so that the running-in spindle 12 can be used to grind the inner surface of the workpiece 11 to be run-in, thereby improving the grinding efficiency, and continuous reciprocating grinding is achieved by driving the driving shaft 3, thereby greatly improving the grinding efficiency.

[0027] In the specific implementation mode of this application, Figure 1As shown, the present application can adopt a hand-cranked drive structure as the driving source of the driving shaft 3 to drive the driving shaft 3, specifically including a driving handle 1, the driving handle 1 is connected to one end of the driving shaft 3 through a driving handle rocker arm 2, the driving handle rocker arm 2 is vertically connected to the driving handle 1 and the driving shaft 3 respectively, and the driving handle 1 is driven by the driving handle rocker arm 2 to drive the driving shaft 3, thereby realizing the rotation of the driving shaft 3. The present application adopts manual drive, and the grinding speed and time can be controlled according to the situation of the parts. The structure is simple and does not require a complex motor to drive, which simplifies the overall running-in structure and reduces the cost of the overall equipment; and the driving handle 1 structure is adopted, and the overall equipment is easy to carry.

[0028] like Figure 3 As shown, the tooling shell includes an outer shell 13 and an inner shell 10, and the workpiece 11 to be run-in is clamped and fixed by the outer shell 13 and the inner shell 10. The outer rings of the outer shell 13 and the inner shell 10 are provided with bolt holes, and the second support seat 14 is provided with fixing holes. The outer shell 13 and the inner shell 10 are fixed to the second support seat 14 by bolts, so that the workpiece 11 to be run-in is clamped and fixed to the second support seat 14; in a specific embodiment of the present application, the fixing hole on the second support seat 14 is an arc-shaped hole structure, and the installation angle of the outer shell 13 and the inner shell 10 can be adjusted.

[0029] In another embodiment of the present application, the outer shell 13 and the inner shell 10 are connected by bolts, the workpiece 11 to be run-in is clamped between the outer shell 13 and the inner shell 10, and bolt holes for connecting to the second support seat 14 by bolts are provided on the inner shell 10. After the workpiece 11 to be run-in is assembled between the outer shell 13 and the inner shell 10, it is fixed to the second support seat 14 by bolts, which can ensure the stability of the installation of the workpiece 11 to be run-in, and adopt a pre-installed structure to avoid the problem of multiple people working together during the assembly process.

[0030] In another embodiment of the present application, in order to realize the running-in processing of large quantities of parts, an electric drive device can be used as the driving shaft 3, specifically including a driving motor, and the driving shaft of the driving motor is connected to the driving shaft 3, or the driving shaft of the driving motor is directly used as the driving source of the driving connecting rod mechanism, which can realize automatic drive and greatly improve the running-in efficiency.

[0031] In the specific implementation of the present application, in order to facilitate transportation and realize flexible use, the first support seat 16 and the second support seat 14 are fixed on the same mounting base 15. The mounting base 15 serves as the supporting structure of the first support seat 16 and the second support seat 14, and is also the supporting structure of the overall running-in device, which facilitates the transportation of the overall equipment and can be used in different work locations according to specific work needs.

[0032] In a specific embodiment of the present application, the driving handle 1 and the driving handle rocker arm 2 are fixedly connected in a detachable manner, the driving handle 1 and the driving handle rocker arm 2 are threadedly connected or plugged in, and a first retaining ring 5-1 is provided at the end of the driving handle 1. The driving handle rocker arm 2 and the driving shaft 3 are connected by a square connection structure, and there is no relative rotation between the driving handle rocker arm 2 and the driving shaft 3.

[0033] The first support seat 16 is provided with an axial hole, and the driving shaft 3 is installed in the axial hole of the first support seat 16. The driving shaft 3 and the first support seat 16 are clearance-matched, and the clearance value is designed to be 0.03-0.05 mm.

[0034] The driving connecting rod mechanism includes a driving rod 6, a rotating connecting rod 8 and a rotating output shaft 9. One end of the driving rod 6 is fixedly connected to the driving shaft 3, and the other end of the driving rod 6 is connected to one end of the rotating connecting rod 8 through a first rotating shaft 4-1. The driving rod 6 and the rotating connecting rod 8 are arranged in parallel, and the other end of the rotating connecting rod 8 is rotatably connected to one end of the rotating output shaft 9 through a second rotating shaft 4-2. The rotating connecting rod 8 and the rotating output shaft 9 are arranged in parallel, and the other end of the rotating output shaft 9 is fixedly connected to the running-in main shaft 12. By using the rotating connecting rod 8 as a connecting rotating structure between the driving rod 6 and the rotating output shaft 9, continuous rotation can be achieved.

[0035] At the same time, if Figure 2 As shown, a spindle blade 17 is provided on the running-in spindle 12, and a shell inner cavity limit table 18 for limiting the spindle blade 17 is provided on the tool shell. The spindle blade 17 is used to run-in the inner surface of the workpiece 11 to be run-in.

[0036] A first cushion block 7-1 is provided on the first rotating shaft 4-1 between the driving rod 6 and the rotating connecting rod 8. One end of the first rotating shaft 4-1 is a boss structure, and the other end of the first rotating shaft 4-1 is limited by a second retaining ring 5-2. The first rotating shaft 4-1 is respectively matched with the driving rod 6 and the rotating connecting rod 8 with clearance, and the clearance value is designed to be 0.02 to 0.05 mm. The axial movement of the driving rod 6 and the rotating connecting rod 8 is adjusted to 0 to 0.1 mm by the first cushion block 7-1, and the second retaining ring 5-2 can prevent the first rotating shaft 4-1 from falling off.

[0037] The center distance between the first rotating shaft 4-1 and the driving shaft 3 is the rotation radius of the driving rod 6, which is recorded as length L. 2 , the angle of rotation of the driving handle 1 around the driving shaft 3 is denoted as α 1 .

[0038] A second cushion block 7-2 is provided on the second rotating shaft 4-2 between the rotating connecting rod 8 and the rotating output shaft 9. One end of the second rotating shaft 4-2 is a boss structure, and the other end of the second rotating shaft 4-2 is limited by a third retaining ring 5-3. The second rotating shaft 4-2 is respectively matched with the rotating connecting rod 8 and the rotating output shaft 9 with clearance, and the clearance value is designed to be 0.02 to 0.05 mm. The axial movement of the rotating connecting rod 8 and the rotating output shaft 9 is adjusted to 0 to 0.1 mm by the second cushion block 7-2, and the third retaining ring 5-3 can prevent the second rotating shaft 4-2 from falling off.

[0039] The center distance between the first rotating shaft 4-1 and the second rotating shaft 4-2 is the rotation radius of the rotating connecting rod 8, which is recorded as length L. 1 .

[0040] The rotating output shaft 9 and the running-in main shaft 12 are connected by a flat groove structure, and there is no relative rotation between them. The center distance between the second rotating shaft 4-2 and the running-in main shaft 12 is the rotation radius of the rotating output shaft 9, which is recorded as length L. 3 The angle of rotation of the output shaft 9 around the running-in spindle 12 is α 2 The two ends of the running-in spindle 12 are supported by the center holes of the outer shell 13 and the inner shell 10. The running-in spindle 12, the outer shell 13 and the inner shell 10 are all clearance fit structures, and the clearance value is designed to be 0-0.01mm. In order to ensure that the axes of the running-in spindle 12, the outer shell 13 and the inner shell 10 are concentric, the three are installed and positioned by locating pins.

[0041] In the specific embodiment of the present application, the swing angle α of the running-in spindle 12 is 2 With L 1 , L 2 , L 3 , α 1 The functional relationship between them is:

[0042] Where:

[0043]

[0044]

[0045] The specific process of running-in the workpiece 11 to be run-in by the above-mentioned running-in device based on the present application is as follows: the driving handle 1 drives the handle rocker arm 2 to rotate in a circle around the axis of the driving shaft 3, and the driving shaft 3 also rotates around its own axis; the driving shaft 3 drives the driving rod 6 to rotate around the axis of the driving shaft 3, and the driving rod 6 swings with the rotating connecting rod 8 through the first rotating shaft 4-1. While the rotating connecting rod 8 swings, the rotating output shaft 9 is driven by the second rotating shaft 4-2 at the lower end to perform non-full-circle reciprocating rotation around the axis of the running-in main shaft 12. At the same time, the running-in main shaft 12 also performs non-full-circle reciprocating rotation around its own axis. Because the workpiece 11 to be run-in, the outer shell 13 and the inner shell 10 are all fixed to the second support seat 14 by bolts and are in a stationary state, at this time, the top of the blade on the running-in main shaft 12 will be repeatedly ground with the non-circular surface of the inner cavity of the workpiece 11 to be run-in, and the interference of the inner cavity profile of the workpiece 11 to be run-in will be removed through running-in, so as to ensure that it can work smoothly when installed in the product later.

[0046] The present invention reduces the manufacturing cost of the non-full-circle reciprocating hydraulic element by using the running-in device, improves the product processing efficiency, solves the problem that the top of the main shaft blade will interfere with the inner cavity surface of the shell, and also has the following characteristics: one machine can be used for multiple purposes, and by adjusting L 1 , L 2 , L 3 The length relationship between them can realize the matching surface running-in of non-full-circle reciprocating swing elements with different swing angles of 0° to 140°; The second support seat 14 is provided with an arc groove, which can solve the installation problem of non-full-circle reciprocating swing elements of different structures. The device of the present application only adopts a bracket structure. The overall device is light in weight, small in size, and easy to carry; the device has a compact structure, a small number of parts, and a low manufacturing cost; for larger non-full-circle reciprocating swing hydraulic elements, rolling bearings can also be installed in the inner holes of the outer shell 13 and the inner shell 10 to reduce friction.

[0047] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A running-in device for a non-full-circle reciprocating swing element, characterized in that: The invention comprises a first support seat (16) and a second support seat (14) which are arranged at an interval, wherein the second support seat (14) is mounted with a workpiece (11) to be run-in via a tool housing, and a drive shaft (3) is arranged on the first support seat (16), one end of the drive shaft (3) is driven by a drive device, and the other end of the drive shaft (3) is connected to a run-in spindle (12) via a drive connecting rod mechanism, and one end of the run-in spindle (12) is embedded in the workpiece (11) to be run-in.

2. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 1, characterized in that: The driving device comprises a driving handle (1), wherein the driving handle (1) is connected to one end of a driving shaft (3) via a driving handle rocker arm (2), and the driving handle rocker arm (2) is respectively vertically connected to the driving handle (1) and the driving shaft (3).

3. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 1, characterized in that: The driving device adopts a motor driving structure.

4. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 1, characterized in that: The tool housing comprises an outer housing (13) and an inner housing (10); a workpiece (11) to be run-in is clamped and fixed by the outer housing (13) and the inner housing (10); bolt holes are provided on the outer rings of the outer housing (13) and the inner housing (10); a fixing hole is provided on the second support seat (14); and the outer housing (13) and the inner housing (10) are fixed to the second support seat (14) by bolts.

5. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 1, characterized in that: The first support seat (16) and the second support seat (14) are fixed on the same mounting base (15).

6. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 1, characterized in that: The driving connecting rod mechanism comprises a driving rod (6), a rotating connecting rod (8) and a rotating output shaft (9); one end of the driving rod (6) is fixedly connected to the driving shaft (3); the other end of the driving rod (6) is connected to one end of the rotating connecting rod (8) via a first rotating shaft (4-1); the driving rod (6) and the rotating connecting rod (8) are arranged in parallel; the other end of the rotating connecting rod (8) is rotatably connected to one end of the rotating output shaft (9) via a second rotating shaft (4-2); the rotating connecting rod (8) and the rotating output shaft (9) are arranged in parallel; and the other end of the rotating output shaft (9) is fixedly connected to a running-in main shaft (12).

7. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 6, characterized in that: A main shaft blade (17) is provided on the running-in main shaft (12), and a housing inner cavity limiting platform (18) for limiting the main shaft blade (17) is provided on the tool housing.

8. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 6, characterized in that: A first cushion block (7-1) is provided on the first rotating shaft (4-1) between the driving rod (6) and the rotating connecting rod (8); one end of the first rotating shaft (4-1) is a boss structure; the other end of the first rotating shaft (4-1) is limited by a second retaining ring (5-2).

9. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 6, characterized in that: A second cushion block (7-2) is provided on the second rotating shaft (4-2) between the rotating connecting rod (8) and the rotating output shaft (9); one end of the second rotating shaft (4-2) is a boss structure; the other end of the second rotating shaft (4-2) is limited by a third retaining ring (5-3).

10. A running-in device for a non-full-circumference reciprocating oscillating element according to claim 6, characterized in that: The functional relationship between the swing angle α2 of the running-in spindle and L1, L2, L3, and α1 is: Where: ； α1 is the angle of rotation of the driving handle around the driving shaft; L1 is the rotation radius of the rotating connecting rod; L3 is the rotation radius of the rotating output shaft; L2 is the rotation radius of the driving rod.

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