Connecting rod machining tooling

Abstract

The utility model discloses a connecting rod processing frock, including base, bearing seat and clamping seat, bearing seat fixed mounting is in the base, the clamping seat is located above bearing seat, and with bearing seat integral setting, be equipped with with the clamping groove that the clamping seat is similar to the connecting rod appearance on the clamping seat, and the clamping seat is equipped with the left slide chute and right slide chute of inclined setting respectively on the clamping groove below the both ends connecting hole position of connecting rod, the left slide chute will clamping seat, the left side of clamping groove is formed with left clamping seat and left clamping groove, the right slide chute will clamping seat, the right side of clamping groove is formed with right clamping seat and right clamping groove, the both sides of clamping groove are equipped with threaded hole and positioning hole respectively, and the both sides of the bottom of installing pressboard are equipped with positioning pin and clamping hole respectively, the utility model discloses the connecting rod processing frock, only need to twist two fastening bolts, can fix connecting rod on frock, and the positioning precision is high after the convenient installation and processing dismounting.

Description

Technical Field

[0001] This utility model relates to the field of connecting rod processing technology, and in particular to a connecting rod processing tooling. Background Technology

[0002] In the field of mechanical manufacturing, the connecting rod, as a key transmission component connecting the piston and crankshaft, directly affects the operational stability of equipment such as engines due to its machining accuracy. A typical connecting rod structure is as follows: Figure 1 As shown, the dimensional accuracy and positional accuracy of the holes at both ends of the connecting rod 1 seriously affect the assembly accuracy of the connecting rod. However, due to the irregular structure of the connecting rod itself, it is difficult to directly clamp and position it using the machine tool fixture. Generally, a special carrier needs to be designed for clamping and then processing. Existing tooling structures are generally designed to be quite complex, and the process of changing the parts to be processed is complicated and cumbersome, which is inconvenient for high-efficiency production. In view of the above problems, this utility model provides a solution. Summary of the Invention

[0003] The purpose of this invention is to provide a tooling for machining connecting rods.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A connecting rod machining fixture includes a base, a bearing seat, and a clamping seat. The bearing seat is fixedly installed on the base. The clamping seat is located above the bearing seat and is integrally formed with the bearing seat. The clamping seat has a clamping groove similar in shape to the connecting rod. The clamping seat below the connecting holes at both ends of the connecting rod has an inclined left sliding groove and a right sliding groove, respectively. The left sliding groove separates the left side of the clamping seat and the clamping groove to form a left clamping seat and a left clamping groove. The right sliding groove separates the right side of the clamping seat and the clamping groove to form a right clamping seat and a right clamping groove. The clamping groove has a threaded hole and a positioning hole on both sides. The bottom of the mounting plate has a positioning pin and a clamping hole on both sides. The positioning pin is located at the bottom of the mounting plate and is integrally formed with the mounting plate. One end of the mounting plate is inserted into the positioning hole through the positioning pin. The other end of the mounting plate is fixedly engaged with the threaded hole through the clamping hole by a fastening bolt. The bottom of the mounting plate has a pressure block with an arc-shaped pressure groove in the middle.

[0005] Furthermore, the arc-shaped groove of the pressure block is provided with a flexible pad, which is made of rubber material to effectively protect the clamped parts.

[0006] Furthermore, the left and right sliding troughs are inclined in the same direction, which facilitates the unified collection of waste generated during processing.

[0007] Furthermore, the threaded holes and positioning holes on the left and right sides of the clamping base are arranged in opposite positions, which makes the force distribution more uniform when the connecting rod is installed.

[0008] Furthermore, each of the four corners of the support is provided with a mounting hole, and the fixing bolt passes through the mounting hole and is fixedly connected to the threaded hole on the base. By setting the above-mentioned detachable structure, it is convenient to replace different support seats and process products of different specifications and sizes.

[0009] Furthermore, the fastening bolt is equipped with a slotted cap, which allows for easy initial pre-tightening by hand.

[0010] In summary, the present invention has the following advantages: the connecting rod processing fixture designed in this invention only requires tightening two fastening bolts to fix the connecting rod on the fixture, which facilitates installation and disassembly after processing, and has high positioning accuracy. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the connecting rod structure; Figure 2 This is a schematic diagram of the structure of the tooling of this utility model; Figure 3 This is a schematic diagram of the structure of the clamping connecting rod of this utility model during operation; Figure 4 This is a schematic diagram of the structure for installing the pressure plate; In the diagram, 1 is the connecting rod; 2 is the base; 3 is the bearing seat; 4 is the clamping seat; 5 is the left clamping seat; 6 is the right clamping seat; 7 is the clamping groove; 8 is the left clamping groove; 9 is the right clamping groove; 10 is the left sliding groove; 11 is the right sliding groove; 12 is the threaded hole; 13 is the positioning hole; 14 is the fixing bolt; 15 is the mounting plate; 16 is the fastening bolt; 17 is the nut; 18 is the positioning pin; 19 is the pressure block; and 20 is the flexible pad. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0013] like Figure 2-4As shown, a connecting rod machining fixture includes a base 2, a bearing seat 3, and a clamping seat 4. The bearing seat 3 is fixedly mounted on the base 2. The clamping seat 4 is located above the bearing seat 3 and is integrally formed with the bearing seat 3. The clamping seat 4 has a clamping groove 7 similar in shape to the connecting rod 1. The shape of the clamping groove 7 can be machined by a CNC machine tool. The clamping seat 4 below the connecting holes at both ends of the connecting rod 1 has an inclined left sliding groove 10 and a right sliding groove 11, respectively. The left sliding groove 10 divides the left side of the clamping seat 4 and the clamping groove 7 to form a left clamping seat 5 and a left clamping groove 8. The right sliding groove 11 divides the right side of the clamping seat 4 and the clamping groove 7. The right clamping seat 6 and the right clamping groove 9 are separated and adapted to the corresponding positions of the connecting rod 1. The clamping groove 7 is provided with threaded holes 12 and positioning holes 13 on both sides. The bottom of the mounting plate 15 is provided with positioning pins 18 and clamping holes on both sides. The positioning pins 18 are set at the bottom of the mounting plate 15 and are integrally set with the mounting plate 15. One end of the mounting plate 15 is inserted into the positioning hole 13 through the positioning pin 18. The other end of the mounting plate 15 is fixedly engaged with the threaded hole 12 through the clamping hole by fastening bolts 16. The bottom of the mounting plate 15 is provided with a pressure block 19, and the middle position of the pressure block 19 is provided with an arc-shaped pressure groove.

[0014] Furthermore, such as Figure 4 As shown, a flexible pad 20 is provided in the arc-shaped pressure groove of the pressure block 19. The flexible pad 20 is made of rubber material, which effectively protects the clamped parts and avoids damage due to rigid contact during the clamping process.

[0015] Furthermore, the left sliding trough 10 and the right sliding trough 11 are set in the same direction of inclination, which facilitates the unified collection of waste generated during processing.

[0016] Furthermore, such as Figure 2 and Figure 3 As shown, the threaded holes 12 and positioning holes 13 on the left and right sides of the clamping base 4 are arranged in opposite positions. This arrangement results in a more uniform force distribution when installing the connecting rod 1.

[0017] Furthermore, each of the four corners of the bearing seat 3 is provided with a mounting hole, and the fixing bolt 14 passes through the mounting hole and is fixedly connected to the threaded hole on the base 2. By setting the above-mentioned detachable structure, it is convenient to replace different bearing seats 3 for processing products of different specifications and sizes.

[0018] Furthermore, the fastening bolt 16 is provided with a straight-line cap 17, which facilitates initial pre-tightening by hand.

[0019] Working principle: During clamping, first place the connecting rod 1 into the clamping slot 7, then insert the positioning pins 18 of the two mounting plates 15 into the corresponding positioning holes 13, and then fix them by the fastening bolts 16 and threaded holes 12 to complete the clamping. Then place the regular structure (square) base 2 on the machine tool worktable for clamping and positioning. Only two fastening bolts are needed to fix the connecting rod on the tooling, which is convenient for installation and disassembly after processing, and has high positioning accuracy.

[0020] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A tooling for machining connecting rods, characterized in that: The device includes a base (2), a support (3), and a clamping seat (4). The support (3) is fixedly installed on the base (2). The clamping seat (4) is located above the support (3) and is integrally formed with the support (3). The clamping seat (4) is provided with a clamping groove (7) similar in shape to the connecting rod (1). The clamping seat (4) below the connecting holes at both ends of the connecting rod (1) is provided with an inclined left sliding groove (10) and a right sliding groove (11). The left sliding groove (10) divides the left side of the clamping seat (4) and the clamping groove (7) to form a left clamping seat (5) and a left clamping groove (8). The right sliding groove (11) divides the right side of the clamping seat (4) and the clamping groove (7) to form a left clamping seat (5) and a left clamping groove (8). The partition forms a right clamping seat (6) and a right clamping groove (9). The clamping groove (7) has a threaded hole (12) and a positioning hole (13) on both sides. The bottom of the mounting plate (15) has a positioning pin (18) and a clamping hole on both sides. The positioning pin (18) is set at the bottom of the mounting plate (15) and is integrally set with the mounting plate (15). One end of the mounting plate (15) is inserted into the positioning hole (13) through the positioning pin (18). The other end of the mounting plate (15) is fixedly engaged with the threaded hole (12) through the clamping hole by the fastening bolt (16). The bottom of the mounting plate (15) has a pressure block (19). The middle position of the pressure block (19) has an arc-shaped pressure groove.

2. The connecting rod machining fixture according to claim 1, characterized in that: The pressure block (19) has a flexible pad (20) in its arc-shaped groove, and the flexible pad (20) is made of rubber material.

3. The connecting rod machining fixture according to claim 2, characterized in that: The left sliding groove (10) and the right sliding groove (11) are set in the same direction of inclination.

4. The connecting rod machining fixture according to claim 3, characterized in that: The threaded holes (12) and positioning holes (13) on the left and right sides of the clamping base (4) are arranged in opposite positions.

5. The connecting rod machining fixture according to claim 1, characterized in that: Each of the four corners of the bearing seat (3) is provided with a mounting hole, and the fixing bolt (14) passes through the mounting hole and is fixedly connected to the threaded hole on the base (2).

6. The connecting rod machining fixture according to claim 1, characterized in that: The fastening bolt (16) is provided with a swivel cap (17).

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