Connecting rod clamp

Abstract

The utility model relates to a connecting rod clamp which is used for fixing a connecting rod and comprises a bottom plate and a plurality of side wall supporting assemblies installed on the bottom plate. The side wall supporting assembly comprises a mounting seat, an abutting part, a transmission rod and an eccentric wheel; the mounting seat is fixedly mounted on the bottom plate; the abutting part is movably mounted on the mounting seat; the transmission rod is movably mounted on the mounting seat, one end of the transmission rod faces the outer arc surface of the eccentric wheel, and the other end of the transmission rod faces the abutting part; the eccentric wheel rotates to drive the transmission rod to move, so that the transmission rod pushes the abutting part to abut against the side wall of the connecting rod; the connecting rod fixing device has the advantages that the fixing stability of the connecting rod is improved, and then the yield of the connecting rod is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine component processing, in particular to a connecting rod clamp. BACKGROUND

[0002] The connecting rod is a force-bearing moving part connected with the piston of an engine, wherein the big end of the connecting rod cooperates with the crankshaft, and when the cooperation precision of the two is low, the connecting rod big end is prone to loosening, wear aggravation and noise increase during the operation of the engine.

[0003] In order to increase the machining precision of the connecting rod, it is usually necessary to stably fix the connecting rod before machining. In the prior art, a hydraulic rod or a clamping jaw is usually used to fix the connecting rod. However, when the connecting rod is fixed in this way, the hydraulic rod or the clamping jaw is prone to back-off and loosening due to unstable hydraulic pressure of the hydraulic equipment, thereby causing unstable fixation of the connecting rod and further leading to low yield of the connecting rod. TECHNICAL CONTENT

[0004] The utility model solves the technical problem in the prior art, and provides a connecting rod clamp.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A connecting rod clamp for fixing a connecting rod comprises a bottom plate and a plurality of side wall support assemblies installed on the bottom plate.

[0007] The side wall support assembly comprises a mounting seat, an abutting portion, a transmission rod and an eccentric wheel.

[0008] The mounting seat is fixedly installed on the bottom plate.

[0009] The abutting portion is movably installed on the mounting seat.

[0010] The transmission rod is movably installed on the mounting seat, with one end facing the outer arc surface of the eccentric wheel and the other end facing the abutting portion.

[0011] The eccentric wheel drives the transmission rod to move by rotation, so that the transmission rod pushes the abutting portion against the side wall of the connecting rod.

[0012] The center axis of the transmission rod passes through the rotation center of the eccentric wheel.

[0013] Preferably, the abutting portion comprises an abutting block, a rotating shaft and an elastic member.

[0014] The abutting block is rotatably installed on the mounting seat by the rotating shaft.

[0015] One end of the elastic member is connected with the abutting block, and the other end is connected with the mounting seat;

[0016] When the abutting block is not subjected to the force of the transmission rod, the elastic member drives the abutting block away from the connecting rod.

[0017] Preferably, one side of the abutting block towards the connecting rod has a protruding block;

[0018] The local width of the protruding block gradually decreases from top to bottom to form an abutting surface.

[0019] Preferably, the side wall support assembly further comprises a cylinder sleeve;

[0020] The cylinder sleeve is sleeved on the outer periphery of the transmission rod;

[0021] The cylinder sleeve is provided as a metal sleeve.

[0022] Preferably, the side wall support assembly further comprises a driving rod;

[0023] The driving rod is fixedly connected with the eccentric wheel.

[0024] Preferably, the bottom plate is provided with a plurality of groups of side support portions;

[0025] Each group of side support portions comprises at least three side wall support assemblies, two of which are symmetrically arranged about the large end of the connecting rod, and the other is arranged away from the side of the small end of the connecting rod opposite to the large end.

[0026] Preferably, the adjacent two groups of side support portions are staggered.

[0027] Preferably, the large end comprises a large end face and a large end hole;

[0028] The connecting rod clamp further comprises a large end limiting plate and a large end extension rod;

[0029] The large end limiting plate is fixedly arranged on the bottom plate and abuts against the large end face;

[0030] The large end extension rod is fixedly arranged on the large end limiting plate and abuts against the inner wall of the large end hole.

[0031] Preferably, the small end comprises a small end face and a small end hole;

[0032] The connecting rod clamp further comprises a small end limiting plate and a small end extension rod;

[0033] The small end limiting plate is fixedly arranged on the bottom plate and abuts against the small end face;

[0034] The small end extension rod is fixedly arranged on the small end limiting plate and abuts against the inner wall of the small end hole.

[0035] Compared with the prior art, the utility model has the beneficial effects that:

[0036] The connecting rod clamp provided by the utility model can make different positions of the outer circular arc surface of the eccentric wheel abut against the transmission rod by the rotating driving force applied by the operator to drive the eccentric wheel to rotate, and the transmission rod can apply a certain size of pressure to the abutting portion, so that the abutting portion applies a certain size of abutting force to the connecting rod, which facilitates the fixing or loosening operation of the connecting rod and ensures the fixing effect of the connecting rod while avoiding great damage of the connecting rod and increasing the yield rate of the connecting rod. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0038] Figure 1 An example structure schematic view is provided for the utility model.

[0039] Figure 2 For Figure 1 Another schematic view from another perspective.

[0040] Figure 3 For Figure 2 A cross-sectional view along the A-A section.

[0041] Figure 4 For Figure 3 An enlarged schematic view of the D1 position.

[0042] Explanation of reference signs:

[0043] 100, big head end; 101, big head end face; 102, big head hole; 200, small head end; 201, small head end face; 202, small head hole; 1, bottom plate; 2, side wall support assembly; 21, mounting seat; 22, abutting portion; 221, abutting block; 2211, protruding block; 222, rotating shaft; 223, elastic piece; 23, transmission rod; 24, eccentric wheel; 25, cylinder sleeve; 26, driving rod; 3, big head limiting plate; 4, big head extension rod; 5, small head limiting plate; 6, small head extension rod. DETAILED DESCRIPTION

[0044] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0045] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] Referring to Figures 1 to 4 The embodiment of the present application provides a connecting rod clamp for fixing a connecting rod, comprising a bottom plate 1 and a plurality of side wall support assemblies 2 mounted on the bottom plate 1.

[0048] Specifically, the side wall supporting assembly 2 comprises a mounting base 21, an abutting part 22, a transmission rod 23 and an eccentric wheel 24; the mounting base 21 is fixedly installed on the bottom plate 1; the abutting part 22 is movably installed on the mounting base 21; the transmission rod 23 is movably installed on the mounting base 21, and one end thereof faces the outer arc surface of the eccentric wheel 24, and the other end thereof faces the abutting part 22; the eccentric wheel 24 drives the transmission rod 23 to move by rotating to push the abutting part 22 to abut against the side wall of the connecting rod; and the central axis of the transmission rod 23 passes through the rotation center of the eccentric wheel 24.

[0049] It can be understood that, by operating personnel applying a rotating driving force to drive the eccentric wheel 24 to rotate, different positions of the outer arc surface of the eccentric wheel 24 can abut against the transmission rod 23, which facilitates the transmission rod 23 to apply a certain size of pressure to the abutting part 22, so that the abutting part 22 applies a certain size of abutting force to the connecting rod, which facilitates the fixing or loosening operation of the connecting rod, ensures the fixing effect of the connecting rod, and can avoid the connecting rod from being damaged. Compared with hydraulic driving, the present scheme can not only avoid the situation that the connecting rod is damaged due to excessive hydraulic pressure, but also avoid the situation that the fixing effect of the connecting rod clamp on the connecting rod is unstable due to hydraulic back-off. In addition, the central axis of the transmission rod 23 passes through the rotation center of the eccentric wheel 24, so that the reaction force applied by the transmission rod 23 to the eccentric wheel 24 passes through the rotation center of the eccentric wheel 24, that is, the reaction force applied by the transmission rod 23 to the eccentric wheel 24 is perpendicular to the force driving the eccentric wheel 24 to rotate, which can make the eccentric wheel 24 keep stable under the action of the rotating driving force applied by the operating personnel, so that the fixing effect of the connecting rod clamp on the connecting rod is better.

[0050] It is worth noting that, when the transmission rod 23 moves towards the end close to the abutting part 22, the abutting part 22 can be pushed to abut against the side wall of the connecting rod to realize the fixing of the connecting rod; when the transmission rod 23 moves away from the end close to the abutting part 22, the end thereof can be separated from the abutting part 22, so that the abutting part 22 no longer applies the abutting force to the connecting rod to loosen the connecting rod.

[0051] Referring to Figures 1 to 4 , the abutting part 22 comprises an abutting block 221, a rotating shaft 222 and an elastic member 223; the abutting block 221 is rotatably installed on the mounting base 21 through the rotating shaft 222; one end of the elastic member 223 is connected with the abutting block 221, and the other end thereof is connected with the mounting base 21; when the abutting block 221 is not subjected to the force of the transmission rod 23, the elastic member 223 drives the abutting block 221 to move away from the connecting rod.

[0052] Specifically, the elastic member 223 can be provided in a spring structure.

[0053] Specifically, the side of the abutting block 221 facing the connecting rod has a protrusion 2211; the local width of the protrusion 2211 gradually decreases from top to bottom to form an abutting surface.

[0054] Referring to Figures 1 to 4 , the side wall supporting assembly 2 further comprises a cylinder sleeve 25, which is sleeved on the outer periphery of the transmission rod 23.

[0055] Specifically, the cylinder sleeve 25 is arranged as a metal sleeve, thereby reducing the friction between the transmission rod 23 and the mounting base 21 and facilitating the movement of the transmission rod 23.

[0056] Specifically, the side wall supporting assembly 2 further comprises a driving rod 26, which is fixedly connected with the eccentric wheel 24, so as to facilitate the rotation of the eccentric wheel 24 by the operator.

[0057] Referring to Figure 1 and Figure 2 , in order to simultaneously fix multiple connecting rod clamps, the bottom plate 1 is provided with a plurality of groups of side supporting portions; each group of side supporting portions comprises at least three side wall supporting assemblies 2, two of which are symmetrically arranged about the big end 100 of the connecting rod, and the other is arranged on the side of the big end 100 away from the small end 200 of the connecting rod, so that the three side wall supporting assemblies 2 can be distributed in a triangular shape about the connecting rod, thereby enhancing the fixing effect on the connecting rod. In addition, the two side wall supporting assemblies 2 are symmetrically arranged about the big end 100, which can enhance the fixing effect on the big end 100.

[0058] Further, the adjacent two groups of side supporting portions are staggered, so that more supporting portions can be arranged on the bottom plate 1 of the same size.

[0059] It is worth noting that the "staggered arrangement" here refers to that one end of the supporting portion provided with two side wall supporting assemblies 2 is arranged opposite to one end of the adjacent supporting portion provided with one side wall supporting assembly 2.

[0060] Referring to Figure 1 and Figure 2 , the big end 100 comprises a big end face 101 and a big end hole 102; the small end 200 comprises a small end face 201 and a small end hole 202.

[0061] In order to further increase the fixing effect on the connecting rod, the connecting rod clamp further comprises a big end limiting plate 3 and a big end extension rod 4; the big end limiting plate 3 is fixedly arranged on the bottom plate 1 and abuts against the big end face 101; the big end extension rod 4 is fixedly arranged on the big end limiting plate 3 and abuts against the inner wall of the big end hole 102.

[0062] Further, the connecting rod clamp further comprises a small end limiting plate 5 and a small end extension rod 6; the small end limiting plate 5 is fixedly arranged on the bottom plate 1 and abuts against the small end face 201; the small end extension rod 6 is fixedly arranged on the small end limiting plate 5 and abuts against the inner wall of the small end hole 202.

[0063] It should be understood that the large head end face 101 and the small head end face 201 are both provided with two oppositely arranged, and the large head end face 101 close to the bottom plate 1 is in abutment with the large head limiting plate 3, and the small head end face 201 close to the bottom plate 1 is in abutment with the small head limiting plate 2.

[0064] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application, and any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall belong to the scope of protection required by the present application.

Claims

1. A connecting rod clamp for securing a connecting rod, characterized by, The side wall support assembly (2) comprises a mounting seat (21), an abutting part (22), a transmission rod (23) and an eccentric wheel (24). The mounting seat (21) is fixedly installed on the bottom plate (1). The abutting part (22) is movably installed on the mounting seat (21). The transmission rod (23) is movably installed on the mounting seat (21), and one end thereof faces the outer arc surface of the eccentric wheel (24), and the other end thereof faces the abutting part (22). The eccentric wheel (24) drives the transmission rod (23) to move by rotation, so that the transmission rod (23) pushes the abutting part (22) to abut against the side wall of the connecting rod. The center axis of the transmission rod (23) passes through the rotation center of the eccentric wheel (24). The abutting part (22) comprises an abutting block (221), a rotating shaft (222) and an elastic member (223).

2. A connecting rod clamp as claimed in claim 1, characterized in that The abutting block (221) is rotatably installed on the mounting seat (21) through the rotating shaft (222). One end of the elastic member (223) is connected with the abutting block (221), and the other end thereof is connected with the mounting seat (21). When the abutting block (221) is not subjected to the force of the transmission rod (23), the elastic member (223) drives the abutting block (221) to move away from the connecting rod. The side of the abutting block (221) facing the connecting rod is provided with a protruding block (2211).

3. A connecting rod clamp as claimed in claim 2, characterized in that The local width of the protruding block (2211) gradually decreases from top to bottom to form an abutting surface. The side wall support assembly (2) further comprises a cylinder sleeve (25).

4. A connecting rod clamp as in claim 1 wherein, The cylinder sleeve (25) is sleeved on the outer periphery of the transmission rod (23). The cylinder sleeve (25) is a metal sleeve. The side wall support assembly (2) further comprises a driving rod (26).

5. A connecting rod clamp as in claim 1 wherein, The driving rod (26) is fixedly connected with the eccentric wheel (24). The bottom plate (1) is provided with a plurality of groups of side support parts.

6. A connecting rod clamp according to any one of claims 1-5, characterized in that Each group of side support parts comprises at least three side wall support assemblies (2), two of which are symmetrically arranged about the large end (100) of the connecting rod, and the other is arranged on the side of the small end (200) of the connecting rod away from the large end (100). Adjacent two groups of side support parts are staggered.

7. A connecting rod clamp as claimed in claim 6, characterized in that The large end (100) comprises a large end face (101) and a large hole (102).

8. A connecting rod clamp as in claim 6 wherein, The connecting rod clamp further comprises a large end limiting plate (3) and a large end extension rod (4). The large end limiting plate (3) is fixedly arranged on the bottom plate (1) and abuts against the large end face (101). The large end extension rod (4) is fixedly arranged on the large end limiting plate (3) and abuts against the inner wall of the large hole (102). The small end (200) comprises a small end face (201) and a small hole (202).

9. A connecting rod clamp as in claim 6 wherein, The connecting rod clamp further comprises a small end limiting plate (5) and a small end extension rod (6). The small end limiting plate (5) is fixedly arranged on the bottom plate (1) and abuts against the small end face (201). ​ The small head extension rod (6) is fixed on the small head limiting plate (5) and abuts against the inner wall of the small head hole (202).

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