CN111230543A - Universal joint clamping and machining tool and machining method - Google Patents

Abstract

The invention discloses a universal joint clamping processing tool and a processing method, comprising a base, a mounting groove is provided on the base, and one side of the mounting groove is provided with a notch, and the tool also includes a clamping device arranged on the base A plate and a positioning adjustment mechanism for abutting the clamping plate to adjust the clamping force of the clamping plate toward the side of the notch in the installation groove, the side of the clamping plate facing the notch in the installation groove cooperates with the installation groove to form the clamping of the universal joint installation space. The clamping and processing tooling of the invention can realize the adjustable positioning and clamping of the parts, which facilitates the auxiliary positioning and fixing effect during machining, improves the yield rate of processing and production, and improves the production efficiency.

Description

A universal joint clamping processing tool and processing method

technical field

The invention belongs to the technical field of universal joint processing, and in particular relates to a universal joint clamping processing tool and a processing method.

Background technique

The universal joint is a universal joint, which is a mechanism that realizes variable-angle power transmission and is used for the position where the direction of the transmission axis needs to be changed. It is the "joint" component of the universal transmission device of the automobile drive system. The combination of the universal joint and the drive shaft is called a universal joint transmission.

When parts are machined to manufacture universal joints, because there is no good processing tooling, the parts cannot be effectively positioned, the processing and production are inconvenient, and the production efficiency is low.

SUMMARY OF THE INVENTION

The present invention aims to solve the technical problems existing in the prior art. To this end, the present invention provides a universal joint clamping processing tool and a processing method, the purpose of which is to facilitate the positioning and clamping of the parts so as to facilitate processing.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A universal joint clamping processing tooling includes a base, a mounting groove is provided on the base, and a gap is formed on one side of the mounting groove, and the tooling also includes a clamping plate arranged on the base and a clamping plate for interference clamping. The plate is a positioning adjustment mechanism for adjusting the clamping force of the clamping plate facing the notch side of the installation groove.

The positioning adjustment mechanism includes a limit plate and an adjustment bolt, the adjustment bolt penetrates the limit plate and abuts against the clamping plate, and adjusts the clamping force between the clamping plate and the gap of the installation groove by loosening the adjustment bolt.

A clearance space is reserved between the clamping plate and the end face of the notch of the installation groove.

The four corners of the clamping installation space are reserved with semicircular slot holes.

A side surface of the clamping plate facing the notch of the installation groove is provided with a clamping groove, and the clamping groove cooperates with the installation groove to form a clamping installation space.

Semi-circular slot holes with gaps are formed between the two ends of the gap of the installation slot and the corresponding positions of the clamping plate, and the other two semi-circular slot holes are respectively located at the other two corners of the installation slot.

The bottom surface of the installation groove is provided with an escape hole.

The base is provided with a plurality of sets of installation grooves distributed laterally and/or longitudinally, and a positioning adjustment mechanism is provided outside the gap of each installation groove.

The base is provided with a guide rail, the top surface of the guide rail and the bottom surface of the installation groove are in the same plane, the clamping plate is provided with a clamping groove for clamping the guide rail, and the positioning adjustment mechanism drives the clamping plate to slide along the guide rail to adjust The distance between the clamping plate and the notch in the mounting groove.

Both sides of the base are provided with positioning and clamping grooves.

The processing method of the universal joint clamping and processing tooling comprises the following steps:

Step 1. Put the parts into the installation slot, and clamp and fix them with the clamping plate;

Step 2: Mill the flat potential of the part exposed on the outside of the installation slot by the cutter;

Step 3. After milling the flat shape, take out the part, turn over the side of the milled flat shape and put it into the installation slot, and then use the cutter to mill the flat shape of the other side of the part;

Step 4. After milling the flat position again, the center hole of the part is machined by the machine tool;

Step 5. Flip the part 90 degrees and put it into the installation slot, and then process the center hole of the end face of the part to get the universal joint.

Beneficial effects of the present invention: The clamping and processing tooling of the present invention can realize the adjustable positioning and clamping of the parts, which facilitates the auxiliary positioning and fixing effect during machining, improves the yield of processing and production, and improves the production efficiency. Ensure the coaxiality and symmetry of the processed universal joint.

Description of drawings

This manual includes the following drawings, which are as follows:

Fig. 1 is the structural representation of the universal joint of the present invention;

Fig. 2 is the top view of the processing tool of embodiment 1 of the present invention;

Fig. 3 is the top view of the processing tool of embodiment 2 of the present invention;

FIG. 4 is a plan view of Embodiment 4 of the present invention.

The figure is marked as:

1. Base, 2. Installation slot, 3. Notch, 4. Clamping plate, 5. Limiting plate, 6. Adjusting bolt, 7. Semicircular slot, 8. Clamping slot, 9. Avoidance hole.

Detailed ways

Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention will be described in further detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation. It should be noted that the orientation or positional relationship indicated by the terms "up", "down", "front", "rear", "left", "right", "vertical", "inside", "outside", etc. Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood to limit the invention.

As shown in Figures 1 to 2, a universal joint clamping processing tool includes a base 1, a mounting groove 2 is provided on the base 1, and a gap 3 is provided on one side of the mounting groove 2. The processing tool also includes a The clamping plate 4 on the base 1 and the positioning adjustment mechanism for abutting the clamping plate 4 to adjust the clamping force of the clamping plate 4 towards the side of the notch of the installation groove, the side of the clamping plate 4 facing the notch of the installation groove and the installation groove 2 to form the clamping installation space of the universal joint. When installing, first put the parts into the installation groove, and then adjust the clamping force against the clamping plate through the positioning adjustment mechanism, so that the clamping plate matches the clamping surface of the installation groove to position and clamp the parts to prevent shaking. Ensure the coaxiality and symmetry of the processed universal joint.

The positioning adjustment mechanism includes a limit plate 5 and an adjustment bolt 6. The adjustment bolt 6 passes through the limit plate 5 and abuts against the clamping plate 4, and adjusts the clamping force between the clamping plate 5 and the installation groove gap by loosening the adjustment bolt 6. At least one adjusting bolt is provided, and the clamping force of the clamping plate can be adjusted by loosening the adjusting bolt; it can also be provided more than one. All are subject to extrusion force to avoid clamping deformation.

A clearance space is reserved between the clamping plate 4 and the end face of the notch 3 of the installation groove, so as to facilitate the formation of a pre-installation travel space when the parts are clamped. This structure setting is also applicable to parts with slightly different specifications.

In order to avoid interference, semicircular slot holes 7 are reserved at the four corners of the clamping installation space. The purpose of setting the semi-circular hole at four corners is to ensure that it is a right angle, so that the parts cannot be loaded due to the rounded corners of the tool; at the same time, it is also convenient for the machining operation of the tool.

In this embodiment, a side surface of the clamping plate 4 facing the notch of the installation groove is provided with a clamping groove 8 , and the clamping groove 8 cooperates with the installation groove 2 to form a clamping installation space. The clamping installation space is square as a whole, and the four corners of the clamping installation space are the corners of the installation groove and the clamping groove. This kind of structure arrangement is convenient for manufacture, and at the same time, when generating and processing, only one type of tool can be used to process the four corners. The top surface of the clamping plate and the top surface of the mounting groove are on the same plane. The groove depth height of the installation groove is the height after the universal joint is processed and manufactured.

Since the universal joint has a cross-shaped hole as a whole, when the above processing tool is used for punching, if there is no corresponding structural avoidance, the tool will be damaged. The avoidance hole is arranged in the middle of the bottom surface of the installation slot. After the machined universal joint is installed in the installation slot, the punching operation is performed so that the punched hole is located at the center of the universal joint.

The processing method of using the upper universal joint to clamp the processing tool includes the following steps:

Step 1. Put the parts into the installation slot 2, and clamp and fix them by the clamping plate 4; specifically, insert the adjustment bolts into the installation holes of the limit plate, and then gradually tighten the adjustment bolts so that the adjustment bolts gradually bear against the mounting holes. The clamping plate faces the side of the installation groove, and the clamping plate cooperates with the installation groove to clamp and fix the parts in the installation groove;

Step 2: Mill the flat potential of the part exposed on the outer side of the installation slot by the tool; specifically, place the base of the fixed part on the upper limit of the machine tool and fix it, and then use the tool to mill the flat potential of the upper side of the part;

Step 3. After milling the flat shape, take out the part, turn the side of the milled flat shape into the installation slot, and then use the cutter to mill the flat shape of the other side of the part; the process requirements for the two milling flat shape parameters are the same;

Step 4. After milling the flat shape again, the center hole of the part is machined by the machine tool; specifically, by repeating steps 2 and 3, after milling out the required flat shape of the universal joint, the tooling is fixed on the machining center. At the hole, the center hole is then machined. Due to the existence of the avoidance hole in the installation groove, the bottom of the installation groove of the tool will not be damaged during drilling;

Step 5. Flip the part 90 degrees and put it into the installation slot, and then process the center hole of the end face of the part to form a cross-shaped hole, that is, the universal joint.

Example 2

As shown in FIG. 3 , the difference between this embodiment and Embodiment 1 is that there are multiple sets of installation grooves 2 distributed laterally and/or longitudinally on the base, and a positioning adjustment mechanism is provided outside the gap of each installation groove. This kind of structure arrangement is convenient for clamping and positioning multiple parts at the same time, and it is convenient for multiple parts to process and manufacture the universal joint at the same time. The structures in the tooling are the same as those in Example 1, and will not be repeated here. The tooling set with this structure can process a plurality of universal joints at the same time, thereby improving the production efficiency. The method of processing multiple universal joints at the same time is similar to the processing method in Embodiment 1, except that the processing method in Embodiment 1 is used to simultaneously operate multiple parts.

In addition, two sides of the base are provided with positioning and clamping grooves, which are convenient for clamping and fixing tooling in cooperation with the positioning and clamping pieces on the machining equipment.

Example 3

The difference between this embodiment and Embodiment 1 is that the base 1 is provided with a guide rail, the top surface of the guide rail and the bottom surface of the installation groove are on the same plane, the clamping plate 4 is provided with a clamping groove for clamping the guide rail, and the positioning adjustment mechanism drives the The clamping plate slides along the guide rail to adjust the distance between the clamping plate and the notch of the installation groove. Through such a structure arrangement, it is convenient to adjust the distance between the clamping plate and the gap of the installation groove, and can adapt to the processing of parts with different specifications and longitudinal dimensions, thereby improving the applicability of the tooling.

Example 4

The difference between this embodiment and Embodiment 1 is that semi-circular slot holes with gaps are formed between the two ends of the notch of the installation slot and the corresponding positions of the clamping plate, and the other two semi-circular slot holes are respectively located at the other side of the installation slot. two corners. In this structure, semi-circular slots with gaps are formed between the two ends of the notch of the installation slot and the corresponding positions of the clamping plate, on the one hand, to avoid the problem that the parts cannot be loaded due to the rounded corners of the tool, on the other hand, the setting The clearance space is reduced, so that there is a certain pre-compression opening and closing space when clamping, which is convenient for tool loading, and also reduces the contact area of the tool here, reduces the collision rate, and also provides rounded corner entry and exit for tool processing. pre-space.

The present invention has been exemplarily described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above manner. As long as the method concept and technical solution of the present invention are adopted for various non-substantial improvements; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention. within.

Claims (10)

1. A universal joint clamping and processing tooling, comprising a base, characterized in that, a mounting groove is provided on the base, and one side of the mounting groove is provided with a gap, and the tooling also includes a clamping plate arranged on the base and a positioning adjustment mechanism for abutting the clamping plate to adjust the clamping force of the clamping plate toward the side of the notch in the installation groove, the side of the clamping plate facing the notch in the installation groove cooperates with the installation groove to form the clamping installation of the universal joint space. 2 . The universal joint clamping tooling according to claim 1 , wherein the positioning adjustment mechanism comprises a limit plate and an adjustment bolt, and the adjustment bolt passes through the limit plate and abuts against the clamping plate, and is adjusted by tightness. 3 . Bolts to adjust the clamping force between the clamping plate and the notch in the mounting groove. 3 . The universal joint clamping and processing tool according to claim 1 , wherein a clearance space is reserved between the clamping plate and the end face of the notch of the installation groove. 4 . 4 . The universal joint clamping tooling according to claim 1 , wherein semicircular slot holes are reserved at four corners of the clamping installation space. 5 . 5 . The universal joint clamping tooling according to claim 1 , wherein a side of the clamping plate facing the notch of the installation groove is provided with a clamping groove, and the clamping groove cooperates with the installation groove to form a clamping installation space. 6 . . 6 . The universal joint clamping and processing tool according to claim 1 , wherein the bottom surface of the installation groove is provided with an escape hole. 7 . 7. The universal joint clamping and processing tool according to claim 1, wherein the base is provided with multiple sets of installation grooves distributed laterally and/or longitudinally, and positioning adjustment is provided outside the gap of each installation groove mechanism. 8. The universal joint clamping tooling according to claim 1, wherein the base is provided with a guide rail, the top surface of the guide rail and the bottom surface of the installation groove are on the same plane, and the clamping plate is provided with a clamp. The positioning adjustment mechanism drives the clamping plate to slide along the guide rail to adjust the distance between the clamping plate and the notch of the installation groove. 9 . The universal joint clamping and processing tool according to claim 1 , wherein positioning and clamping grooves are provided on both sides of the base. 10 . 10. The processing method of the universal joint clamping and processing tooling according to claim 1, characterized in that, comprising the steps of: Step 1. Put the parts into the installation slot, and clamp and fix them with the clamping plate; Step 2: Mill the flat potential of the part exposed on the outside of the installation slot by the cutter; Step 3. After milling the flat shape, take out the part, turn over the side of the milled flat shape and put it into the installation slot, and then use the cutter to mill the flat shape of the other side of the part; Step 4. After milling the flat position again, the center hole of the part is machined by the machine tool; Step 5. Flip the part 90 degrees and put it into the installation slot, and then process the center hole of the end face of the part to get the universal joint.

Images