CN207971514U - Decorative pattern formula gear shaping mechanism - Google Patents

Abstract

The utility model discloses a pattern-type gear-shaping mechanism, which comprises a base, an indexing device and a gear-shaping mechanism. The indexing device and the gear-shaping mechanism are fixedly arranged on the base in sequence. The device is driven by a motor and is used to adjust the processing parameters of the workpiece. The gear shaping mechanism includes a tool holder, a gear shaping cutter, a number of adjusting screw rods and a number of motors driving the screw rods. One adjustment screw and the second adjustment screw, the first adjustment screw is used to adjust the distance from the tool tip to the center of the rotating shaft, the distance is the radius of motion of the arc of the workpiece to be processed, and the second adjustment screw is used for tool tip contact The outer diameter surface of the workpiece is used as the tool setting point. The beneficial effects of the utility model are: the precision and glossiness of teeth are guaranteed during processing, the cutting speed is faster, the tool rest can be adjusted up and down, and workpieces with different tooth rows and sizes can be processed.

Description

Pattern gear shaping mechanism

technical field

The utility model relates to the field of lathe processing equipment, in particular to a pattern type gear shaping mechanism.

Background technique

The traditional patterned tooth parts are processed by using an embossing knife to cut the outside of the workpiece, and the distance between the teeth cannot be guaranteed to be consistent during processing, and the depth cannot be guaranteed to be consistent. And when cutting, debris is easy to adhere to and get stuck between the teeth on the surface of the workpiece, and it is not easy to fall off. The appearance and glossiness of affecting the teeth are also not up to the requirements. The processing speed of traditional CNC machine tool cutting is slow, and it requires a machine tool with more than four axes to process. Ordinary lathes cannot process patterned gears. The requirements for cutting tools are relatively high, and special cutting tools are required for processing. . And only a single set of tools can be used for processing, and every time the tool is changed, it needs to be repositioned.

Contents of the invention

The purpose of this utility model is to provide a pattern-type gear-shaping mechanism that solves the above-mentioned technical defects, which is realized through the following technical solutions.

The pattern-type gear shaping mechanism includes a base, an indexing device and a gear shaping mechanism. The indexing device and the gear shaping mechanism are fixedly arranged on the base in sequence. The indexing device includes a main shaft indexing device, and the indexing device is driven by a motor. Adjust the processing parameters of the workpiece. The gear shaping mechanism includes a tool holder, a gear shaping cutter, a number of adjusting screw rods and a number of motors driving the screw rods. Adjusting the screw rod, the first adjusting screw rod is used to adjust the distance from the tip of the tool to the center of the rotating shaft, the distance is the radius of motion of the arc of the workpiece to be processed, and the second adjusting screw rod is used for the tip of the tool to contact the outer diameter surface of the workpiece as a tool setting point.

Further, the cylinder is connected to the tool holder through the cylinder top rod, and the gear shaper cutter is embedded in the tool holder.

Further, the base of the indexing device and the base adopt gears to slide, and the angle range of the indexing device sliding along the hard rail set on the base is 0-90 degrees, which is used for processing workpieces.

Further, the hard rail arranged on the base is a fan-shaped groove structure, and the mechanism slides in the groove to ensure uniform speed during operation.

Further, the workpiece of the indexing device is clamped by an outer circular buckle.

The beneficial effects of the utility model are: the precision and glossiness of the teeth are guaranteed during processing, the cutting speed is faster, the tool rest can be adjusted up and down, and workpieces with different tooth rows and sizes can be processed.

Description of drawings

Fig. 1 is a schematic structural diagram of a gear-shaping mechanism in a specific embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the pattern-type gear shaping mechanism includes a base 10, an indexing device 20 and a gear shaping mechanism 30, and the indexing device 20, the gear shaping mechanism 30, and the indexing device 20 include a spindle indexing The indexing device is driven by a motor and is used to adjust the processing parameters of the workpiece. The gear shaping mechanism includes a tool holder, a gear shaping knife, a number of adjusting screw rods and a number of motors driving the screw rods. The first adjusting screw mandrel 36 and the second adjusting screw mandrel 32 of the frame angle, the first adjusting screw mandrel 36 is used to adjust the distance from the tip of the tool to the center of the rotating shaft, the distance is the radius of motion of the arc of the workpiece, and the second adjustment The screw rod 32 is used for the tool tip to contact the outer diameter surface of the workpiece as a tool setting point.

The base 10 is provided with a base motor 11 for adjusting the direction of the indexing device, and is connected with the indexing device through gear transmission.

The indexing device includes: a main shaft indexing device 21, which is connected with the base motor 11 through the main shaft, and is used to adjust the station clamping device 22 during processing, to clamp the workpiece, and rotate clockwise or counterclockwise with reference to the outer circumference of the workpiece. Cooperate with gear shaping mechanism for cutting.

The gear shaping mechanism 30 includes several motors for transmission, an adjusting screw, and an air cylinder connected with the adjusting screw. The air cylinder provides power for the gear shaping cutter positioned on the tool rest to process the workpiece. The adjusting screw includes a first adjusting screw 36 and a second adjusting screw 32, the second adjusting screw 32 is connected to the second motor 31 in transmission, and is used for overall up-and-down adjustment of the position of the gear shaping mechanism 30, the first adjusting screw 36 It is connected with the second adjusting screw 32 by rotating the center of the rotating shaft 33. The center of the rotating shaft can longitudinally adjust the position of the first leading screw and the shaper tool rest. The center of the rotating shaft is connected with the transmission shaft 34. One end is connected to the first adjusting screw 36, the first adjusting screw 36 is connected with the tool rest 37, the first adjusting screw is used to adjust the position of the tool rest, the tool rest 37 can fix one or more gear shaper cutters 38, and the workpiece 40 for processing.

Corresponding to the transverse axis of the tool rest is an indexing device installed on the main shaft. The indexing device 20 is located on the transmission device and includes an outer circular buckle-type clamping device 22 for clamping the workpiece. The indexing device and the motor The gear 11 is connected in rotation, and the motor receives the rotational speed calculated according to the command and the reserved gear shaping time, and cooperates with the gear shaping structure to process the workpiece on the indexing device. The angle of tool rest 38 can adjust direction when processing gear, and indexing device 20 then slides and rotates through the hard rail 12 that is arranged on base 10, and rotation angle can be rotated counterclockwise from 0 ° of horizontal direction (relative to gear shaping mechanism) to Between 90° and 100°, in another embodiment, it can be rotated in a clockwise direction, and the workpiece on the indexing device is clamped by an outer circular buckle to ensure the accuracy and gloss of the inner teeth.

First, confirm the outer diameter of the workpiece to be processed, the thickness of the workpiece, the tooth row, the angle of the cutting tooth row, and the total number of teeth. Then adjust the distance from the tip of the tool to the center of the rotating shaft, which is just the radius of the appropriate arc motion for processing the workpiece. Adjustment (when the distance between the overall tool holder and the center of the rotating shaft remains unchanged from the previously set processing arc radius) the tool tip just touches the outer diameter surface of the processed workpiece as the tool setting point. Adjust the positive and negative angles of the spindle indexing device according to the processing workpiece and tooth line angle requirements, and lock the spindle indexing device with a pneumatic device to maintain cutting accuracy, gloss and appearance. The cutting angle adjustment is to install gears and sliding devices under the base for easy adjustment, and adjust the spindle indexing device as a whole to make a suitable distance from the workpiece to the tool tip as the starting point of processing.

After adjusting all the processing requirements, keep a certain distance between the tool holder and the workpiece to prevent the workpiece and the tool tip from being too close to damage the workpiece and the tool. The second adjusting screw drives the gear shaping mechanism to run straight to the sensor position to the rear, and the gear shaping cutter completes the cutting in the running project. When the second adjusting screw drives the gear shaping mechanism to run until the sensor stops, the gear shaping knife relies on the pneumatic device to move up a certain distance to return to the initial position, and the second adjusting screw drives the gear shaping mechanism to return to the initial position by pushing and pulling the pneumatic device . According to the different tooth rows and different depth requirements, when the gear shaper cutter returns to the initial position, it is lowered by a certain distance according to the program setting data, and the same steps are repeated for each tooth until the depth requirement between each tooth is reached.

After the front tooth row is processed, adjust another angle of the spindle indexing device through the spindle indexing base sliding device to complete the cutting requirements on the other side, and repeat the above steps to complete the processing of the patterned gear.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. decorative pattern formula gear shaping mechanism, including pedestal, chain-drive section and gear shaping mechanism, chain-drive section, gear shaping are fixedly installed successively on pedestal Mechanism, it is characterized in that, the chain-drive section includes chief axis dividing apparatus, indexing means is driven by motor, is added for adjusting workpiece Work parameter, the gear shaping mechanism include knife rest, pinion cutter, several several motors for adjusting lead screw and driving lead screw, several tune Section lead screw includes adjusting lead screw and the second adjusting lead screw for adjusting the first of knife rest angle, and the first adjusting lead screw is for adjusting knife Point arrives the distance of spindle central, and the distance is the moving radius of the circular arc of workpieces processing, and the second adjusting lead screw connects for point of a knife Workpiece external diameter surface is touched to be used as to knife point.

2. decorative pattern formula gear shaping mechanism according to claim 1, which is characterized in that the cylinder of gear shaping mechanism passes through cylinder top thick stick It is connect with knife rest, embedded pinion cutter on knife rest.

3. decorative pattern formula gear shaping mechanism according to claim 1, which is characterized in that machine head base and pedestal are slided using gear Dynamic, head is 0-90 degree along the angular range that the hard rail being set on the base is slided, and is used for workpieces processing.

4. decorative pattern formula gear shaping mechanism according to claim 3, which is characterized in that the hard rail being set on the base is fan-shaped Trench structure, mechanism are slided in slot, ensure the uniform of speed when for running.

5. decorative pattern formula gear shaping mechanism according to claim 1, which is characterized in that the workpiece of head is pressed from both sides using outer circle buckle-type Tightly.