A fixture for machining connecting rod body and connecting rod cover bolt holes

Abstract

The utility model discloses a kind of clamps for machining connecting rod body and connecting rod cover bolt hole, including base, vertical plate being installed on base and first limit block being installed on vertical plate, second limit block, positioning block, limit post, first clamping mechanism, second clamping mechanism, third clamping mechanism.First limit block and second limit block respectively in first direction against connecting rod cover and connecting rod body.Positioning block in second direction against connecting rod body.Limit post extends along first direction, and is fixedly sleeved in the mounting hole of connecting rod body.First clamping mechanism in third direction against the side of connecting rod cover relative to base;Second clamping mechanism and third clamping mechanism respectively in first direction against the side of connecting rod cover and connecting rod body relative to first limit block.The first direction, second direction and third direction are perpendicular to each other.The clamp is used for synchronously, coaxial machining bolt hole of connecting rod cover and connecting rod body, improves bolt hole processing efficiency and in the position accuracy of connecting rod cover and connecting rod body.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for processing bolt holes of a connecting rod body and a connecting rod cap. Background Art

[0002] A connecting rod is an important transmission component in mechanical transmission, and it is crucial for ensuring the normal operation of mechanical structures. In engine technology, a connecting rod is composed of a connecting rod body and a connecting rod cap assembled and matched through tooth-shaped portions. Bolt holes are formed in the connecting rod cap and the connecting rod body, and the connecting rod cap and the connecting rod body are fastened by means of bolt connection. The connecting rod converts the reciprocating motion of the piston into the rotating motion of the crankshaft and transmits the force acting on the piston assembly to the crankshaft. Therefore, the processing accuracy of the bolt holes of the connecting rod cap and the connecting rod body determines the fitting accuracy between the connecting rod cap and the connecting rod body, which directly affects the overall operation performance of the engine.

[0003] In the existing processing technology for bolt holes of connecting rod caps and connecting rod bodies, due to the irregular structure of connecting rods, clamping connecting rods by using a vice clamp matched with a processing machine tool has the technical problem that it is difficult to achieve a specific clamping posture of the connecting rod.

[0004] In addition, due to the difference in the overall structural shape between the connecting rod cap and the connecting rod body, there also exists the technical problem that the connecting rod cap and the connecting rod body need to be clamped and processed separately, and it is difficult to realize batch clamping for milling, resulting in low milling efficiency. Furthermore, since the bolt holes of the connecting rod cap and the connecting rod body are processed separately, under the cumulative error caused by human factors such as clamping and tool setting, there is deviation in the positions of the bolts processed on the connecting rod cap and the connecting rod body, which leads to deviation in the assembly of the connecting rod cap and the connecting rod body, and further affects the fitting accuracy of the connecting rod cap and the connecting rod body. Summary of the Invention

[0005] The main objective of the present utility model is to provide a clamp for processing bolt holes of a connecting rod body and a connecting rod cap, so as to solve the technical problem raised in the background art.

[0006] To achieve the above objective, the present utility model provides a clamp for processing bolt holes of a connecting rod body and a connecting rod cap, comprising: a base; a vertical plate, the vertical plate being mounted on the base; a first limiting block, the first limiting block being mounted on the vertical plate and abutting against the connecting rod cap in a first direction; a second limiting block, the second limiting block being mounted on the vertical plate and abutting against the connecting rod body in the first direction; a positioning block, the positioning block being mounted on the vertical plate and abutting against an end of the connecting rod body close to a second tooth-shaped portion in a second direction; a limiting post, the limiting post being mounted on the vertical plate, extending along the first direction, sleeved in a mounting hole of the connecting rod body, and abutting against an inner wall of the mounting hole; A first clamping mechanism is mounted on the upright plate and abuts against the side of the connecting rod cover opposite the base in a third-party upward direction; The second clamping mechanism is installed on the upright plate and abuts against the side of the connecting rod cover opposite to the first limiting block in the first direction; The third clamping mechanism is installed on the vertical plate and abuts against the side of the connecting rod body opposite to the second limiting block in the first direction; The first direction is parallel to the X-axis, the second direction is parallel to the Y-axis, and the third direction is parallel to the Z-axis. The connecting rod cover is located on the side of the connecting rod body opposite to the base.

[0007] In an optional embodiment, the fixture for machining the connecting rod body and connecting rod cap bolt holes further includes a fourth clamping mechanism, which is mounted on the upright plate and located in the second direction between the third clamping mechanism and the limiting post, and in the first direction abuts against the side of the connecting rod body opposite the second limiting block.

[0008] In an optional embodiment, the first clamping mechanism includes a first driving member, a first connecting rod, and a first pressing block. The first driving member is mounted on the upright plate, and the two ends of the first connecting rod are respectively connected to the output shaft of the first driving member and the first pressing block. The first pressing block abuts against the side of the connecting rod cover opposite to the base in a third-order upward direction.

[0009] In an optional embodiment, the second clamping mechanism includes a second driving member, a second connecting rod, and a second pressure block. The second driving member is mounted on the upright plate, and the two ends of the second connecting rod are respectively connected to the output shaft of the second driving member and the second pressure block. The second pressure block abuts against the side of the connecting rod cover opposite to the first limiting block in a first direction.

[0010] In an optional embodiment, the third clamping mechanism includes a third driving member, a third connecting rod, and a third pressure block. The third driving member is mounted on the upright plate, and the two ends of the third connecting rod are respectively connected to the output shaft of the third driving member and the third pressure block. The third pressure block abuts against the side of the connecting rod body opposite to the second limiting block in a first direction.

[0011] In an optional embodiment, the fourth clamping mechanism includes a fourth driving member, a fourth connecting rod, and a fourth pressure block. The fourth driving member is mounted on the upright plate, and the two ends of the fourth connecting rod are respectively connected to the output shaft of the fourth driving member and the fourth pressure block. In a second direction, the fourth pressure block is located between the second pressure block and the limiting post, and abuts against the side of the connecting rod body opposite to the second limiting block in a first direction.

[0012] In an optional embodiment, the fixture for machining the bolt holes of the connecting rod body and the connecting rod cap further includes two ribs, each of which is fixedly connected to the upright plate and the base, and is located on the side of the upright plate opposite to the connecting rod body and the connecting rod cap.

[0013] In an optional embodiment, the fixture for machining the bolt holes of the connecting rod body and the connecting rod cap is characterized by further comprising a plurality of lifting rings, which are detachably mounted on the base.

[0014] In an optional embodiment, the fixture for machining the bolt holes of the connecting rod body and the connecting rod cap is characterized by further comprising a plurality of connecting members, wherein a plurality of connecting holes are provided on the base along a third direction, and the base is mounted on the worktable of the machining tool through the plurality of connecting members and the plurality of connecting holes.

[0015] In an optional embodiment, the first limiting block and the second limiting block are respectively provided with a first positioning surface and a second positioning surface. The first positioning surface and the second positioning surface are both flat surfaces and are perpendicular to the first direction, and respectively abut against the connecting rod cover and the connecting rod body in the first direction. Compared with the prior art, the present invention has the following technical effects: 1. The fixture of this utility model for machining bolt holes of connecting rod body and connecting rod cover can clamp the connecting rod body and connecting rod cover in a specific posture so that the machined surfaces of the connecting rod body and connecting rod cover are perpendicular to the spindle of the machining tool. The fixture restricts all degrees of freedom of the connecting rod cover and connecting rod body and has good clamping stability.

[0016] It can enable the connecting rod cap and connecting rod body to be assembled together to process bolt holes, and to process bolt holes synchronously and coaxially on the same toolpath, thereby improving the bolt hole processing efficiency and the positional accuracy of the connecting rod cap and connecting rod body, and thus improving the fitting accuracy of the connecting rod cap and connecting rod body.

[0017] 2. This utility model relates to a fixture for machining bolt holes in connecting rod bodies and connecting rod caps. It employs a positioning block, a first limiting block, and a second limiting block, with a first positioning surface and a second positioning surface respectively provided on the first and second limiting blocks. The positioning block is used to position the connecting rod body in a second direction. The positioning block, in conjunction with the first toothed portion of the connecting rod cap and the second toothed portion of the connecting rod body, achieves the positioning of the connecting rod cap in the second direction. The first and second positioning surfaces are used for positioning the connecting rod cap and the connecting rod body in the first direction, respectively, making the entire fixture simple to position. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the connecting rod cover and connecting rod body of this utility model; Figure 2 This is a schematic diagram of the fixture for machining bolt holes in connecting rod body and connecting rod cap, and the connecting rod cap and connecting rod body according to the present invention. Figure 3 for Figure 2 The exploded diagram.

[0020] Explanation of icon numbers: 100 Fixture for machining bolt holes in connecting rod bodies and connecting rod caps. 803 Second pressing block 1 base 9 Third clamping mechanism 101 Connection hole 901 Third drive unit 2 uprights 902 Third connecting rod 3 First limiting block 903 Third pressing block 301 First positioning plane 10 Fourth clamping mechanism 4 Second limiting block 1001 Fourth drive component 401 Second positioning surface 1002 Fourth connecting rod 5 Positioning block 1003 Fourth pressing block 6 Limiting post 11 Ribs 7 First clamping mechanism 12 Rings 701 First driving component 200 connecting rod cover 702 First connecting rod 250 First tooth-shaped part 703 First pressing block 300 Linkage 8 Second clamping mechanism 350 Second tooth-shaped part 801 Second drive unit 360 Mounting holes 802 Second connecting rod 400 Bolt holes The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] 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.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0024] Please refer to Figures 1-3 This utility model proposes a fixture 100 for machining connecting rod bodies and connecting rod cap bolt holes.

[0025] In this embodiment of the utility model, the connecting rod cap 200 and the connecting rod body 300 are arranged opposite each other in a third direction, and are respectively provided with a first toothed portion 250 and a second toothed portion 350 along a first direction, and the two toothed portions are engaged. The connecting rod body 300 is provided with a mounting hole 360 ​​at one end opposite to the second toothed portion 350. The fixture 100 for machining the bolt holes of the connecting rod body and the connecting rod cap includes a base 1, a vertical plate 2, a first limiting block 3, a second limiting block 4, a positioning block 5, a limiting post 6, a first clamping mechanism 7, a second clamping mechanism 8, and a third clamping mechanism 9.

[0026] The upright plate 2 is mounted on the base 1 by screws. The first limiting block 3 is mounted on the upright plate 2 by screws and abuts against the connecting rod cover 200 in the first direction. The second limiting block 4 is mounted on the upright plate 2 by screws and abuts against the connecting rod body 300 in the first direction. The positioning block 5 is mounted on the upright plate 2 by screws and abuts against the end of the connecting rod body 300 near the second toothed portion 350 in the second direction. The limiting post 6 is mounted on the upright plate 2 by screws, extends along the first direction, and is fitted into the mounting hole 360 ​​of the connecting rod body 300, abutting against the inner wall of the mounting hole 360.

[0027] The first clamping mechanism 7 is installed on the upright plate 2 and abuts against the side of the connecting rod cover 200 opposite to the base 1 in the third direction; the second clamping mechanism 8 is installed on the upright plate 2 and abuts against the side of the connecting rod cover 200 opposite to the first limiting block 3 in the first direction; the third clamping mechanism 9 is installed on the upright plate 2 and abuts against the side of the connecting rod body 300 opposite to the second limiting block 4 in the first direction.

[0028] Please refer to Figures 1-3 To enhance the clamping stability of the connecting rod body 300 in the first direction, the fixture 100 for machining the connecting rod body and connecting rod cap bolt holes also includes a fourth clamping mechanism 10. The fourth clamping mechanism 10 is mounted on the vertical plate 2 and is located between the third clamping mechanism 9 and the limiting post 6 in the second direction, and abuts against the side of the connecting rod body 300 relative to the second limiting block 4 in the first direction.

[0029] Among them, the first direction, the second direction, and the third direction are mutually perpendicular. The first direction is parallel to the X-axis, the second direction is parallel to the Y-axis, and the third direction is parallel to the Z-axis. In the third direction, the connecting rod cover 200 is provided on the side of the connecting rod body 300 opposite to the base 1.

[0030] Specifically, the first clamping mechanism 7 includes a first driving member 701, a first connecting rod 702, and a first pressing block 703. The first driving member 701 is mounted on the upright plate 2. The two ends of the first connecting rod 702 are connected to the output shaft of the first driving member 701 and the first pressing block 703 by screws. The first pressing block 703 presses against the side of the connecting rod cover 200 opposite to the base 1 in the third direction.

[0031] The first drive unit 701 is mounted on the upright plate 2 by means of screw connection, and the output shaft of the first drive unit 701 extends in the third direction.

[0032] The second clamping mechanism 8 includes a second driving member 801, a second connecting rod 802, and a second pressure block 803. The second driving member 801 is mounted on the upright plate 2. The two ends of the second connecting rod 802 are connected to the output shaft of the second driving member 801 and the second pressure block 803 by screws. The second pressure block 803 abuts against the side of the connecting rod cover 200 opposite to the first limiting block 3 in the first direction.

[0033] The second drive unit 801 is mounted on the upright plate 2 by means of screw connection, and the output shaft of the second drive unit 801 extends along the first direction.

[0034] The third clamping mechanism 9 includes a third driving member 901, a third connecting rod 902, and a third pressure block 903. The third driving member 901 is mounted on the upright plate 2. The two ends of the third connecting rod 902 are connected to the output shaft of the third driving member 901 and the third pressure block 903 by screws. The third pressure block 903 abuts against the side of the connecting rod body 300 opposite to the second limiting block 4 in the first direction.

[0035] The third drive unit 901 is mounted on the upright plate 2 by means of screw connection, and the output shaft of the third drive unit 901 extends along the first direction.

[0036] The fourth clamping mechanism 10 includes a fourth driving member 1001, a fourth connecting rod 1002, and a fourth pressure block 1003. The fourth driving member is mounted on the vertical plate 2. The two ends of the fourth connecting rod 1002 are connected to the output shaft of the fourth driving member 1001 and the fourth pressure block 1003 by screws. In the second direction, the fourth pressure block 1003 is located between the second pressure block 803 and the limiting post 6, and in the first direction, it abuts against the side of the connecting rod body 300 opposite to the second limiting block 4.

[0037] The fourth drive unit 1001 is mounted on the upright plate 2 by means of screw connection, and the output shaft of the fourth drive unit 1001 extends along the first direction.

[0038] The first drive unit 701, the second drive unit 801, the third drive unit 901, and the fourth drive unit 1001 are hydraulic cylinders or pneumatic cylinders with movable output shafts.

[0039] Please refer to Figures 2-3 In one embodiment of this utility model, the fixture 100 for machining the bolt holes of the connecting rod body and the connecting rod cap further includes two ribs 11. Each rib 11 is fixedly connected to the upright plate 2 and the base 1 by screw connection, and is provided on the side of the upright plate 2 opposite to the connecting rod body 300 and the connecting rod cap 200. The use of two ribs 11 can enhance the stability of the upright plate 2 installed on the base 1, thereby improving the stability of the fixture 100 for machining the bolt holes of the connecting rod body and the connecting rod cap.

[0040] Please refer to Figures 2-3 In one embodiment of this utility model, the fixture 100 for machining the bolt holes of the connecting rod body and the connecting rod cap further includes a plurality of lifting rings 12, which are detachably mounted on the base 1 by means of threaded connection. The fixture 100 for machining the bolt holes of the connecting rod body and the connecting rod cap can be moved by means of the lifting rings 12. The number and layout of the lifting rings 12 can be determined according to the size and shape of the base 1, or the installation position of the upright plate 2 on the base 1.

[0041] Please refer to Figures 2-3 In one embodiment of this utility model, the fixture 100 for machining the bolt holes of the connecting rod body and connecting rod cap further includes several connecting members (not shown in the figure). A plurality of connecting holes 101 are provided along a third direction on the base 1. The base 1 is mounted on the worktable (not shown in the figure) of a machining tool via the connecting members and the connecting holes 101. The connecting members can be one or a combination of bolts and screws, but are not limited thereto. The number and layout of the connecting members can be determined according to the size and shape of the base 1, or the installation position of the upright plate 2 on the base 1.

[0042] Please refer to Figures 2-3 In one embodiment of this utility model, the first limiting block 3 and the second limiting block are respectively provided with a first positioning surface 301 and a second positioning surface 401. The first positioning surface 301 and the second positioning surface 401 are both flat surfaces and are perpendicular to the first direction, and respectively abut against the connecting rod cover 200 and the connecting rod body 300 in the first direction.

[0043] The first positioning surface 301 and the second positioning surface 401 respectively abut against the connecting rod cover 200 and the connecting rod body 300. The second clamping mechanism 8 and the third clamping mechanism 9 respectively abut against the connecting rod cover 200 and the connecting rod body 300, as well as the first toothed portion 250 on the connecting rod cover 200 and the second toothed portion 350 on the connecting rod body 300, so that the connecting rod cover 200 and the connecting rod body 300 are in the tooling position during assembly, avoiding deviation in the assembly position of the connecting rod cover 200 and the connecting rod body 300. This allows the machine tool cutter to feed along the third direction and simultaneously and coaxially process the bolt holes 400 on the connecting rod cover 200 and the connecting rod body 300.

[0044] In a specific application of this application, the connecting rod cover 200 and the connecting rod body 300 are arranged opposite each other in a third direction, and are respectively provided with a first toothed portion 250 and a second toothed portion 350 in a first direction, and the two toothed portions mesh to restrict the relative displacement of the connecting rod cover 200 and the connecting rod body 300 in a second direction.

[0045] The first limiting block 3 abuts against the connecting rod cover 200 in the first direction, and cooperates with the second pressing block 803 to abut against the side of the connecting rod cover 200 opposite to the first limiting block 3 in the first direction, thereby restricting the displacement of the connecting rod cover 200 in the first direction.

[0046] The second limiting block 4 abuts against the connecting rod body 300 in the first direction, and together with the third pressing block 903 and the fourth pressing block 1003, abuts against the side of the connecting rod body 300 opposite to the second limiting block 4 in the first direction, thereby restricting the displacement of the connecting rod body 300 in the first direction.

[0047] The limiting post 6 extends along the first direction and is fitted into the mounting hole 360 ​​of the connecting rod body 300, and abuts against the inner wall of the mounting hole 360, thereby restricting the displacement of the connecting rod body 300 in the second and third directions.

[0048] The positioning block 5 abuts against one end of the connecting rod body 300 near the second toothed portion 350 in the second direction, and the first pressing block 703 abuts against one side of the connecting rod cover 200 opposite to the base 1 in the third direction. The positioning block 5 and the first pressing block 703 cooperate with the connecting rod cover 200 to restrict the connecting rod body 300 from rotating around the limiting post 6.

[0049] The first pressure block 703 presses against the side of the connecting rod cover 200 opposite to the base 1 in the third direction, and works with the connecting rod body 300 to restrict the displacement of the connecting rod cover 200 in the third direction.

[0050] When the output shaft of the first drive member 701 retracts, it drives the first connecting rod 702 to move the first pressure block 703 to press against the connecting rod cover 200 in a third-order upward direction, thereby clamping the connecting rod cover 200. When the output shaft of the first drive member 701 extends, it drives the first connecting rod 702 to move the first pressure block 703 away from the connecting rod cover 200 in a third-order upward direction, thereby releasing the connecting rod cover 200.

[0051] When the output shaft of the second drive member 801 retracts, it drives the second connecting rod 802 to move the second pressure block 803 against the connecting rod cover 200 in the first direction, thereby clamping the connecting rod cover 200. When the output shaft of the second drive member 801 extends, it drives the second connecting rod 802 to move the second pressure block 803 away from the connecting rod cover 200 in the first direction, thereby releasing the connecting rod cover 200.

[0052] When the output shaft of the third drive member 901 retracts, it drives the third connecting rod 902 to move the third pressure block 903 against the connecting rod body 300 in the first direction, thereby clamping the connecting rod body 300. When the output shaft of the third drive member 901 extends, it drives the third connecting rod 902 to move the third pressure block 903 away from the connecting rod body 300 in the first direction, thereby releasing the connecting rod body 300.

[0053] When the output shaft of the fourth driving member 1001 retracts, it drives the fourth connecting rod 1002 to move the fourth pressure block 1003 against the connecting rod body 300 in the first direction, thereby clamping the connecting rod body 300. When the output shaft of the fourth driving member 1001 extends, it drives the fourth connecting rod 1002 to move the fourth pressure block 1003 away from the connecting rod body 300 in the first direction, thereby releasing the connecting rod body 300.

[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A fixture for machining bolt holes in a connecting rod body and a connecting rod cap, wherein the connecting rod cap and the connecting rod body are arranged opposite each other in a third direction, and are respectively provided with a first toothed portion and a second toothed portion along a first direction, and the two toothed portions mesh, and the connecting rod body is provided with a mounting hole at one end opposite the second toothed portion, characterized in that, include: Base; An upright plate, which is mounted on the base; The first limiting block is installed on the upright plate and abuts against the connecting rod cover in the first direction; The second limiting block is installed on the upright plate and abuts against the connecting rod body in the first direction; A positioning block is mounted on the vertical plate and abuts against one end of the connecting rod body near the second tooth in the second direction; A limiting post is installed on the upright plate and extends along the first direction, and is sleeved in the mounting hole of the connecting rod body, and abuts against the inner wall of the mounting hole; A first clamping mechanism is mounted on the upright plate and abuts against the side of the connecting rod cover opposite the base in a third-party upward direction; The second clamping mechanism is installed on the upright plate and abuts against the side of the connecting rod cover opposite to the first limiting block in the first direction; The third clamping mechanism is installed on the vertical plate and abuts against the side of the connecting rod body opposite to the second limiting block in the first direction; The first direction is parallel to the X-axis, the second direction is parallel to the Y-axis, and the third direction is parallel to the Z-axis. The connecting rod cover is located on the side of the connecting rod body opposite to the base.

2. The fixture for machining bolt holes in connecting rod bodies and connecting rod caps as described in claim 1, characterized in that, A fixture for machining connecting rod body and connecting rod cap bolt holes further includes a fourth clamping mechanism, which is mounted on the upright plate and located in the second direction between the third clamping mechanism and the limiting post, and in the first direction abuts against the side of the connecting rod body opposite the second limiting block.

3. The fixture for machining bolt holes in connecting rod bodies and connecting rod caps as described in claim 2, characterized in that, The first clamping mechanism includes a first driving member, a first connecting rod, and a first pressure block. The first driving member is mounted on the upright plate. The two ends of the first connecting rod are respectively connected to the output shaft of the first driving member and the first pressure block. The first pressure block abuts against the side of the connecting rod cover opposite to the base in a third-order upward direction.

4. The fixture for machining connecting rod bodies and connecting rod cap bolt holes as described in claim 3, characterized in that, The second clamping mechanism includes a second driving member, a second connecting rod, and a second pressure block. The second driving member is mounted on the upright plate. The two ends of the second connecting rod are respectively connected to the output shaft of the second driving member and the second pressure block. The second pressure block abuts against the side of the connecting rod cover opposite to the first limiting block in a first direction.

5. A fixture for machining bolt holes in a connecting rod body and connecting rod cap as described in claim 4, characterized in that, The third clamping mechanism includes a third driving member, a third connecting rod, and a third pressure block. The third driving member is mounted on the upright plate. The two ends of the third connecting rod are respectively connected to the output shaft of the third driving member and the third pressure block. The third pressure block abuts against the side of the connecting rod body opposite to the second limiting block in a first direction.

6. A fixture for machining bolt holes in a connecting rod body and connecting rod cap as described in claim 5, characterized in that, The fourth clamping mechanism includes a fourth driving member, a fourth connecting rod, and a fourth pressure block. The fourth driving member is mounted on the upright plate. The two ends of the fourth connecting rod are respectively connected to the output shaft of the fourth driving member and the fourth pressure block. In the second direction, the fourth pressure block is located between the second pressure block and the limiting post, and in the first direction, it abuts against the side of the connecting rod body opposite to the second limiting block.

7. A fixture for machining bolt holes in a connecting rod body and connecting rod cap as described in claim 6, characterized in that, A fixture for machining bolt holes in a connecting rod body and a connecting rod cap further includes two ribs, each rib being fixedly connected to the upright plate and the base, and both being located on the side of the upright plate opposite to the connecting rod body and the connecting rod cap.

8. A fixture for machining bolt holes in a connecting rod body and connecting rod cap as described in claim 7, characterized in that, A fixture for machining connecting rod bodies and connecting rod cap bolt holes also includes several lifting rings, which are detachably mounted on the base.

9. A fixture for machining bolt holes in a connecting rod body and connecting rod cap as described in claim 8, characterized in that, A fixture for machining connecting rod bodies and connecting rod cap bolt holes further includes several connecting parts. The base has several connecting holes along a third direction. The base is mounted on the worktable of a machining tool through several connecting parts and several connecting holes.

10. A fixture for machining bolt holes in a connecting rod body and connecting rod cap as described in any one of claims 1-9, characterized in that, The first limiting block and the second limiting block are respectively provided with a first positioning surface and a second positioning surface. The first positioning surface and the second positioning surface are both flat surfaces and are perpendicular to the first direction, and respectively abut against the connecting rod cover and the connecting rod body in the first direction.

Images