Deflection testing fixture for connecting rod plunger
By designing a connecting rod plunger slant detection tool including a workbench, V-shaped block, pad plate, clamp and dial gauge clamp holder, the problem of resource occupation and economical benefits that rely on imager detection in the prior art is solved, and a fast, accurate and economical detection of the center of the spherical slant is achieved.
Patent Information
- Application Number
- CN202421324224.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-11
AI Technical Summary
In the prior art, the detection of the spherical center swing distance of the connecting rod plunger relies on an imager, resulting in large consumption of detection resources, complex operation and low economic benefits.
A slant detection tool for connecting rod plungers is designed, including a workbench, V-shaped block, pad plate, clamp and dial gauge clamp seat. Through the combination of these components, the slant slant distance of connecting rod plungers can be quickly identified.
The inspection tool is simple to operate, low cost and accurate reading, which can effectively solve the problem of resource occupation and low economic benefits of imager detection methods.
Smart Images
Figure CN222560838U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of connecting rod plunger deflection detection, and in particular to a connecting rod plunger deflection detection fixture. Background Art
[0002] The connecting rod plunger is installed in the bevel axis axial piston pump and is a key component of the plunger pump. When the transmission shaft of the bevel axis axial piston pump rotates, the cylinder body is driven to rotate through the contact between the connecting rod and the plunger and the cylinder body. At the same time, the plunger reciprocates in the plunger hole of the cylinder body to achieve oil suction and pressure. The center line of the transmission shaft of the bevel axis axial piston pump is tilted at an angle to the center line of the cylinder body. Changing the size of this angle can change the displacement of the pump.
[0003] The unbalanced radial force on the cylinder of the beveled axis axial piston pump is small, so the structural strength is high and the design parameters are high. The angle between the cylinder axis and the drive shaft is large, and the variable range is large. It is an indispensable component in the hydraulic system of machine tools, mainly used for flow control and pressure control. It is small in size and high in efficiency, which can meet the requirements of high-speed and high-precision machining of machine tools, and improve the machining accuracy and work efficiency. In the aviation and metallurgical industries, beveled axis axial piston pumps are widely used in high-pressure hydraulic systems. For example, it is used in hydraulic systems for operating landing gear, brakes, wing retraction and extension, flap adjustment and other functions. In the metallurgical industry, beveled axis axial piston pumps are used in high-temperature and high-pressure graphite processing, metal extrusion, die-casting and other processes. They can withstand high temperature and high pressure working conditions and effectively improve production efficiency.
[0004] In the related art, the ball center swing distance of the connecting rod plunger is detected by an imager. This detection method occupies the detection resources of the imager, is complicated to operate, and has low economic benefits. Summary of the invention
[0005] The present application provides a connecting rod plunger deflection inspection tool, which can quickly identify the ball center deflection distance of the connecting rod plunger. It is simple to operate, low in cost, and accurate in reading. It solves the problem that the ball center deflection distance of the connecting rod plunger in the related art is detected by an imager, which occupies the detection resources of the imager and has low economic benefits.
[0006] The embodiment of the present application provides a deflection detection fixture for a connecting rod plunger, which includes:
[0007] A workbench, a top surface of which is fixed with a V-shaped block and a pad, and along the length direction of the connecting rod plunger, the V-shaped block and the pad are spaced apart and distributed, the V-shaped block is used to place the rod body of the connecting rod plunger, and the pad is used to place the ball head of the connecting rod plunger;
[0008] A clamp, the clamp is installed on the top surface of the workbench, and the clamp is used to clamp and fix the rod body of the connecting rod plunger;
[0009] A dial indicator clamp seat is arranged on the top surface of the workbench, a dial indicator body is fixed to the dial indicator clamp seat, and a needle of the dial indicator body points to the ball center of the ball head of the connecting rod plunger.
[0010] In one embodiment, a curved clamping plate is fixed to the clamping end of the clamp, and the curved clamping plate is used to fit the side wall of the rod body of the connecting rod plunger.
[0011] In one embodiment, a flexible panel is fixed to the inner side of the arc-surface clamping plate.
[0012] In one embodiment, one end of the V-shaped block away from the backing plate is fixed to a baffle, and the baffle is used to abut against one end of the connecting rod plunger away from its own ball head.
[0013] In one embodiment, there are two dial indicator clamps, which are spaced apart along the length direction of the connecting rod plunger and fixed to the workbench.
[0014] In one embodiment, the dial indicator clamp is slidably mounted on the workbench along the length direction of the connecting rod plunger.
[0015] In one embodiment, handles are fixed to both ends of the top surface of the workbench.
[0016] In one embodiment, the workbench, the V-shaped block and the pad are made of metal material.
[0017] In one embodiment, the workbench is made of carbon structural steel.
[0018] In one embodiment, the V-shaped block and the backing plate are made of high carbon chromium bearing steel.
[0019] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:
[0020] Use a V-shaped block to place the rod body of the connecting rod plunger, a pad to place the ball head of the connecting rod plunger, and use a clamp to clamp and fix the rod body of the connecting rod plunger. Then push the ball head of the connecting rod plunger to the farthest end of the dial indicator needle, confirm that the dial indicator is in contact with the center of the ball head, and record the current reading. Push the ball head of the connecting rod plunger horizontally to the nearest end of the dial indicator needle, record the current reading, and the difference between the two needle readings is the ball center swing distance of the connecting rod plunger. The connecting rod plunger swing inspection fixture can quickly identify the ball center swing distance of the connecting rod plunger. It is simple to operate, low in cost, and accurate in reading. It solves the problem that the ball center swing distance of the connecting rod plunger in the related technology is detected by an imager. This detection method occupies the detection resources of the imager and has low economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 It is a front view structural schematic diagram of the deflection inspection fixture of the connecting rod plunger;
[0023] Figure 2 It is a schematic diagram of the structure of the connecting rod plunger deflection inspection fixture.
[0024] In the figure: 1. workbench; 2. V-shaped block; 3. pad; 4. connecting rod plunger; 41. rod body; 42. ball head; 5. clamp; 51. arc clamping plate; 6. dial indicator clamp seat; 7. dial indicator body; 71. needle; 8. handle; 9. baffle. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0026] The embodiment of the present application provides a connecting rod plunger runout inspection fixture, which can quickly identify the ball center runout distance of the connecting rod plunger. It is simple to operate, low in cost, and accurate in reading. It solves the problem that the ball center runout distance of the connecting rod plunger in the related art is detected by an imager, which occupies the detection resources of the imager and has low economic benefits.
[0027] like Figure 1 and Figure 2As shown, an embodiment of the present application provides a deflection inspection fixture for a connecting rod plunger, characterized in that it may include: a workbench 1, a V-shaped block 2 and a pad 3 are fixed to the top surface of the workbench 1, and the V-shaped block 2 and the pad 3 are spaced apart along the length direction of the connecting rod plunger 4, the V-shaped block 2 is used to place the rod body 41 of the connecting rod plunger 4, and the pad 3 is used to place the ball head 42 of the connecting rod plunger 4; a clamp 5, the clamp 5 is installed on the top surface of the workbench 1, and the clamp 5 is used to clamp and fix the rod body 41 of the connecting rod plunger 4; a dial indicator clamp seat 6, the dial indicator clamp seat 6 is arranged on the top surface of the workbench 1, and a dial indicator body 7 is fixed to the dial indicator clamp seat 6, and the needle 71 of the dial indicator body 7 points to the center of the ball head 42 of the connecting rod plunger 4. Exemplarily, V-blocks 2 and pads 3 are fixed on the top surface of the workbench 1 at intervals along the left-right direction. The V-groove of the V-block 2 is used to place the rod body 41 of the connecting rod plunger 4, and the pad 3 is used to place the ball head 42 of the connecting rod plunger 4. The clamp 5 is installed on the top surface of the workbench 1 and is located behind the V-block 2. The dial indicator clamp seat 6 is fixed on the top surface of the workbench 1 and is located in front of the pad 3, and is diagonally distributed with the clamp 5, which rationally utilizes the space distribution and is convenient for manual operation by the staff.
[0028] Specifically, the rod body 41 of the connecting rod plunger 4 is placed on the V-shaped block 2, the ball head 42 of the connecting rod plunger 4 is placed on the pad 3, and the rod body 41 of the connecting rod plunger 4 is clamped and fixed by the clamp 5. Then, the ball head 42 of the connecting rod plunger 4 is pushed to the farthest end of the needle 71 of the dial indicator 7, confirming that the dial indicator 7 is in contact with the center of the ball head, and the current reading is recorded. The ball head 42 of the connecting rod plunger 4 is pushed horizontally to the nearest end of the needle 71 of the dial indicator 7, and the current reading is recorded. The difference between the two readings of the needle 71 is the ball center swing distance of the connecting rod plunger 4. The swing inspection fixture of the connecting rod plunger can quickly identify the ball center swing distance of the connecting rod plunger 4. It is simple to operate, low in cost, and accurate in reading. It solves the problem that the ball center swing distance of the connecting rod plunger in the related art is detected by an imager, and this detection method occupies the detection resources of the imager and has low economic benefits.
[0029] In one embodiment, Figure 1 and Figure 2 As shown, the clamping end of the clamp 5 is fixed with a curved clamping plate 51, and the curved clamping plate 51 is used to fit the side wall of the rod body 41 of the connecting rod plunger 4. Exemplarily, the curved clamping plate 51 can perfectly fit the side wall of the rod body 41 of the connecting rod plunger 4, ensuring the stable clamping of the clamp 5 and preventing the subsequent measurement work of the connecting rod plunger 4 from being affected.
[0030] In one embodiment, Figure 1 and Figure 2As shown, a flexible panel is fixed on the inner side of the arc clamping plate 51. Exemplarily, the flexible panel can be a flexible rubber panel, and a flexible rubber panel is fixed on the inner side of the arc clamping plate 51, and the flexible rubber panel will closely fit the side wall of the rod body 41 of the connecting rod plunger 4 during the extrusion process, on the one hand, to prevent damage to the side wall of the rod body 41 of the connecting rod plunger 4, and on the other hand, when the flexible rubber panel is extruded, the air is completely discharged, and negative pressure is generated with the side wall of the rod body 41 of the connecting rod plunger 4, and the clamping effect is better and more stable.
[0031] In one embodiment, Figure 1 and Figure 2 As shown, one end of the V-shaped block 2 away from the pad 3 is fixed to the baffle 9, and the baffle 9 is used to abut against one end of the connecting rod plunger 4 away from its own ball head 42. Exemplarily, the baffle 9 can abut against one end of the connecting rod plunger 4 away from its own ball head 42, and after the connecting rod plunger 4 is placed in the V-shaped groove of the V-shaped block 2, the connecting rod plunger 4 is pushed to move to the left until it abuts against the baffle 9, and the connecting rod plunger 4 is initially limited to prevent the connecting rod plunger 4 from shifting back and forth in the left and right directions, so as to facilitate the subsequent clamping work of the clamp 5.
[0032] In one embodiment, Figure 1 and Figure 2 As shown, there are two dial gauge clamps 6, which are spaced apart along the length direction of the connecting rod plunger 4 and fixed to the workbench 1. For example, when facing two connecting rod plungers 4 of different sizes, the staff selects a dial gauge clamp 6 at a suitable position to clamp the dial gauge body 7 according to the length specification of the connecting rod plunger 4, so that the needle 71 of the dial gauge body 7 is aligned with the center of the ball head 42, so as to ensure the measurement of the connecting rod plunger 4.
[0033] In one embodiment, Figure 1 and Figure 2 As shown, along the length direction of the connecting rod plunger 4, the dial gauge clamp 6 is slidably mounted on the workbench 1. For example, the dial gauge clamp 6 can also be slidably mounted on the workbench 1. When facing connecting rod plungers 4 of different sizes, the staff slides the dial gauge clamp 6 along the left and right directions according to the length specifications of the connecting rod plunger 4, so that the needle 71 of the dial gauge body 7 clamped by it is aligned with the center of the ball head 42, thereby ensuring the measurement of the connecting rod plunger 4.
[0034] In one embodiment, Figure 1 and Figure 2 As shown, handles 8 are fixed at both ends of the top surface of the workbench 1. Exemplarily, handles 8 are fixed at both ends of the top surface of the workbench 1, and the handles 8 are convenient for the staff to transport the workbench 1, thereby improving its practicality.
[0035] In one embodiment, Figure 1 and Figure 2 As shown, the material of the workbench 1, the V-shaped block 2 and the pad 3 includes metal material. Among them, the material of the workbench 1, the V-shaped block 2 and the pad 3 can be metal material, which can ensure its service life.
[0036] In one embodiment, Figure 1 and Figure 2 As shown, the workbench 1 is made of carbon structural steel. The workbench 1 is made of carbon structural steel, which can ensure the durability and reliability of the workbench 1 during use. After the workbench 1 is placed and stabilized, it is not easily affected by vibration or shaking of the external environment due to its heavy weight, thereby ensuring the accuracy of the measurement of the connecting rod plunger 4.
[0037] In one embodiment, Figure 1 and Figure 2 As shown, the material of the V-shaped block 2 and the pad 3 is high carbon chromium bearing steel. The material of the V-shaped block 2 and the pad 3 is high carbon chromium bearing steel, which can ensure the flatness of the supporting surface after processing, thereby ensuring the accuracy of the measurement of the connecting rod plunger 4.
[0038] In summary, the working principle of the deflection inspection fixture of the connecting rod plunger is as follows: the rod body 41 of the connecting rod plunger 4 is placed on the V-shaped block 2, the ball head 42 of the connecting rod plunger 4 is placed on the pad 3, and the rod body 41 of the connecting rod plunger 4 is clamped and fixed by the clamp 5, and then the ball head 42 of the connecting rod plunger 4 is pushed to the farthest end of the needle 71 of the dial indicator 7, confirm that the dial indicator 7 is in contact with the center of the ball head, and record the current reading, and push the ball head 42 of the connecting rod plunger 4 horizontally to the nearest end of the needle 71 of the dial indicator 7, record the current reading, and the difference between the two readings of the needle 71 is the ball center deflection distance of the connecting rod plunger 4. Through the deflection inspection fixture of the connecting rod plunger, the ball center deflection distance of the connecting rod plunger 4 can be quickly identified. It is simple to operate, low in cost, and accurate in reading. It solves the problem that the ball center deflection distance of the connecting rod plunger in the related art is detected by an imager, and this detection method occupies the detection resources of the imager and has low economic benefits.
[0039] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0040] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0041] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.
Claims
1. A deflection inspection tool for a connecting rod plunger, characterized in that: It includes: A workbench (1), a top surface of which is fixed a V-shaped block (2) and a pad (3), wherein the V-shaped block (2) and the pad (3) are spaced apart along the length direction of the connecting rod plunger (4), the V-shaped block (2) is used to place a rod body (41) of the connecting rod plunger (4), and the pad (3) is used to place a ball head (42) of the connecting rod plunger (4); A clamp (5), the clamp (5) being mounted on the top surface of the workbench (1), the clamp (5) being used for clamping and fixing the rod body (41) of the connecting rod plunger (4); A dial gauge clamp (6), the dial gauge clamp (6) is arranged on the top surface of the workbench (1), a dial gauge body (7) is fixed to the dial gauge clamp (6), and a needle (71) of the dial gauge body (7) points to the center of the ball head (42) of the connecting rod plunger (4).
2. The deflection detection fixture of the connecting rod plunger according to claim 1, characterized in that: A curved surface clamping plate (51) is fixed to the clamping end of the clamp (5), and the curved surface clamping plate (51) is used to fit the side wall of the rod body (41) of the connecting rod plunger (4).
3. The deflection detection fixture of the connecting rod plunger according to claim 2, characterized in that: A flexible panel is fixed on the inner side of the arc surface clamping plate (51).
4. The deflection detection fixture for connecting rod plunger according to claim 1, characterized in that: One end of the V-shaped block (2) away from the pad (3) is fixed to a baffle (9), and the baffle (9) is used to abut against one end of the connecting rod plunger (4) away from its own ball head (42).
5. The deflection detection fixture of the connecting rod plunger according to claim 1, characterized in that: The number of the dial gauge clamping seats (6) is two, and the two dial gauge clamping seats (6) are spaced apart along the length direction of the connecting rod plunger (4) and fixed to the workbench (1).
6. The deflection detection fixture of the connecting rod plunger according to claim 1, characterized in that: The dial gauge clamp seat (6) is slidably mounted on the workbench (1) along the length direction of the connecting rod plunger (4).
7. The deflection detection fixture of the connecting rod plunger according to claim 1, characterized in that: Handles (8) are fixed to both ends of the top surface of the workbench (1).
8. The deflection detection fixture for connecting rod plunger according to claim 1, characterized in that: The material of the workbench (1), the V-shaped block (2) and the pad (3) includes metal material.
9. The deflection detection fixture for connecting rod plunger according to claim 8, characterized in that: The workbench (1) is made of carbon structural steel.
10. The deflection detection fixture of the connecting rod plunger according to claim 8, characterized in that: The V-shaped block (2) and the backing plate (3) are made of high-carbon chromium bearing steel.