CN204471049U - A kind of positioning datum conversion tool - Google Patents

Abstract

A positioning datum conversion tooling relates to the field of mechanical processing tooling. It includes a base plate (1), an upper cover plate (2) and a set of positioning stations for a main pump casing. The base plate (1) is respectively provided with a machine tool installation hole, a A group of top clamping block passing holes and a group of connecting rod passing holes, a group of upper pressing plate passing holes and a group of drill bit passing holes are respectively provided on the upper cover plate (2), and the upper cover plate (2) is fixed by a set of mounting columns Installed on the base plate (1), the positioning station of the main pump housing includes a clamping cylinder (3), a clamping block (4), a clamping plate (5), a pair of return springs (6), and a pair of clamping cylinders (7) and a pair of cylinder pressure plates (8); after the tooling provided by the utility model is clamped once, the positioning reference can be automatically converted to process the secondary process after the first process is processed, the positioning is accurate, the use is stable, and the process is greatly improved. It improves production efficiency and improves machining accuracy at the same time.

Description

A positioning datum conversion tooling

technical field

The utility model relates to the field of mechanical processing tooling, in particular to a positioning reference conversion tooling.

Background technique

The main pump housing of the motorcycle is a special-shaped part. According to the shape and position tolerance requirements in the design drawings, the upper surface should be used as the reference when processing the oil pool screw hole and the rearview mirror hole, and the lower surface should be used as the reference when processing the oil outlet hole. Positioning, which leads to the need to convert the two positioning states during the processing process, the main pump casing needs to be removed and re-clamped, which not only increases the workload, but also greatly affects the processing accuracy.

Utility model content

The purpose of this utility model is to provide a positioning datum conversion tool in order to solve the above technical problems.

The utility model includes a base plate, an upper cover plate and a group of positioning stations for the main pump housing. The base plate is respectively provided with machine tool mounting holes, a set of top clamping block passing holes and a group of connecting rod passing holes. The upper cover plate is respectively provided with There is a set of upper pressing plate passing holes and a set of drill bit passing holes. The upper cover plate is fixedly installed on the base plate through a set of mounting columns. The positioning station of the main pump housing includes a pressing cylinder, a pressing block, a pressing plate, a For the return spring, a pair of clamping cylinders and a pair of cylinder pressure plates, the clamping cylinder is installed on the bottom of the base plate through the mounting seat, and the piston rod of the clamping cylinder passes through the hole of the clamping block, and the clamping block is provided with V-shaped groove, the clamping block is installed on the piston rod of the clamping cylinder, the two ends of the pressing plate are respectively provided with bosses, and the two ends of a pair of return springs are respectively connected between the upper cover plate and the pressing plate, and a pair of pressing The tightening cylinder is installed on the base plate through the mounting seat, and a pair of cylinder pressure plates are respectively installed on the piston rods of the pair of compression cylinders, and a pair of cylinder pressure plates are respectively pressed on the bosses at both ends of the pressure plate.

There is also an auxiliary picking device, the auxiliary picking device includes a handle connecting rod and a transmission connecting rod, the handle connecting rod is movably installed on the base plate through a pin shaft, the driving connecting rod passes through the connecting rod passing hole on the base plate, and the two ends of the driving connecting rod The ends are movably connected to the handle connecting rod and the pressing plate respectively.

The utility model has the advantages that: after the tooling provided by the utility model is once clamped, the positioning reference can be automatically converted to process the secondary process after the first process is processed, the positioning is accurate, the use is stable, and the production efficiency is greatly improved. High machining accuracy.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural diagram of the station state type of the utility model.

Fig. 3 is a schematic diagram of the structure of the main pump housing of the motorcycle.

Detailed ways

As shown in Figures 1, 2 and 3, the utility model includes a base plate 1, an upper cover plate 2 and a set of positioning stations for the main pump casing. The base plate 1 is respectively provided with a machine tool installation hole, a set of jacking block passing holes and A group of connecting rod passing holes, a group of upper pressing plate passing holes and a group of drill bit passing holes are respectively provided on the upper cover plate 2, and the upper cover plate 2 is fixedly installed on the base plate 1 through a set of mounting columns, and the main pump casing is positioned The station includes a clamping cylinder 3, a clamping block 4, a clamping plate 5, a pair of return springs 6, a pair of clamping cylinders 7 and a pair of cylinder pressure plates 8, and the clamping cylinder 3 is installed on the bottom of the base plate 1 through a mounting seat , and the piston rod of the clamping cylinder 3 passes through the clamping block through the hole, the clamping block 4 is provided with a V-shaped groove, the clamping block 4 is installed on the piston rod of the clamping cylinder 3, and the two ends of the clamping plate 5 Bosses 5-1 are respectively provided, two ends of a pair of return springs 6 are respectively connected between the upper cover plate 2 and the pressing plate 5, a pair of pressing cylinders 7 are installed on the base plate 1 through mounting seats, and a pair of air cylinders The pressing plates 8 are installed on the piston rods of a pair of pressing cylinders 7 respectively, and the pair of cylinder pressing plates 8 are respectively pressed on the bosses 5 - 1 at both ends of the pressing plate 5 .

There is also an auxiliary pick-up device, the auxiliary pick-up device includes a handle connecting rod 9 and a transmission connecting rod 10, the handle connecting rod 9 is movably installed on the base plate 1 through a pin shaft, and the drive connecting rod 10 passes through the connecting rod passing hole on the base plate 1, And the two ends of the transmission connecting rod 10 are movably connected to the handle connecting rod 9 and the pressing plate 5 respectively.

Working method and principle: First, fix the tooling of the utility model on the working table of the machine tool through bolts, and then place the main pump casing 11 of the motorcycle on the V-shaped groove of the clamping block 4 of any positioning station of the main pump casing Process one: the control device controls the piston rod of the jacking cylinder 3 to eject, and the motorcycle main pump housing 11 is jacked up, and the upper surface of the motorcycle main pump housing 11 is against the pressing plate 5. At this time, the drill bit of the machine tool wears The oil pool screw hole and the rearview mirror hole are respectively processed through the drill bit through the hole; process 2: after the process 1 is processed, the control device controls the retraction of the piston rod of the clamping cylinder 3, the retraction of the clamping block 4, and the control device controls a pair of The piston rod of the compression cylinder 7 is retracted, and a pair of cylinder pressure plates 8 are driven to press the boss 5-1 downward, and the pressure plate 5 is driven to press downward. The surface is the reference plane, at this time, the drill bit of the machine tool drills down from the side to process the oil outlet hole. After the process two is processed, manually press down the handle connecting rod 9, lift the pressing plate 5 through the transmission connecting rod 10, and take out the processed parts conveniently.

Claims (2)

1. a positioning datum conversion tool, it is characterized in that it comprises substrate (1), upper cover plate (2) and one group of main pump housing positional stations, (1) is respectively equipped with Installing machine tool hole with substrate, one group of withstanding tight block passing hole and one group of connecting rod passing hole, upper cover plate (2) is respectively equipped with pressure strip passing hole and one group of drill bit passing hole on one group, upper cover plate (2) is fixedly mounted on substrate (1) by one group of erection column, main pump housing positional stations comprises and holds out against cylinder (3), withstanding tight block (4), pressure strip (5), a pair back-moving spring (6), a pair compression cylinder (7) and a pair air cylinder pressure plate (8), hold out against cylinder (3) is arranged on substrate (1) bottom by mount pad, and hold out against the piston rod of cylinder (3) through withstanding tight block passing hole, withstanding tight block (4) is provided with V-type groove, withstanding tight block (4) be arranged on hold out against cylinder (3) piston rod on, the two ends of pressure strip (5) are respectively equipped with boss (5-1), the two ends of a pair back-moving spring (6) are connected between upper cover plate (2) and pressure strip (5), a pair compression cylinder (7) is arranged on substrate (1) by mount pad, a pair air cylinder pressure plate (8) is arranged on the piston rod of a pair compression cylinder (7) respectively, and a pair air cylinder pressure plate (8) is pressed on the boss (5-1) at the two ends of pressure strip (5) respectively.

2. a kind of positioning datum conversion tool according to claim 1, it is characterized in that also having auxiliary pick-off unit, auxiliary pick-off unit comprises handle and connecting rod (9) and kinematic link (10), handle and connecting rod (9) is movably arranged on substrate (1) by bearing pin, kinematic link (10) is through the upper connecting rod passing hole of substrate (1), and the two ends of kinematic link (10) are movably connected on handle and connecting rod (9) and pressure strip (5) respectively.