CN202804037U

CN202804037U - Pitch swinging mechanism

Info

Publication number: CN202804037U
Application number: CN2012202847432U
Authority: CN
Inventors: 俞家林; 俞家淼; 黄花丽
Original assignee: SHAOXING SPRING HOME DEGREES MACHINERY CO Ltd
Current assignee: SHAOXING SPRING HOME DEGREES MACHINERY CO Ltd
Priority date: 2012-06-15
Filing date: 2012-06-15
Publication date: 2013-03-20
Anticipated expiration: 2022-06-15

Abstract

The utility model discloses a pitch swinging mechanism, and belongs to the technical field of key parts of spring machines. The pitch swinging mechanism comprises a camshaft, wherein a first cam and a second cam are mounted on the camshaft; the second cam drives a first swing link to swing by the transmission of a rolling bearing; the change of a swing angle of a second swing link in size is realized by an adjusting block between the first swing link and the second swing link; the transmission between the second swing link and a big swing link is realized by head contact transmission of a first screw bolt; a higher pair transmission structure is arranged between the big swing link and a bracket; the bracket is arranged on a pitch push rod; a rectangular hole is formed at the top of the pitch push rod; the pitch block is arranged in the rectangular hole; the first cam and the second cam are arranged facing to an operator; a third screw bolt at the top of the pitch push rod is used for fixing the pitch block; and the transmission pressure angle in a contacting position between a swinging angle of each swing link and the swing link is less than or equal to10 degrees. The pitch swing mechanism is simple in structure and convenient for operation, and can improve the transmission accuracy and stability.

Description

The pitch swing mechanism

Technical field

The utility model relates to a kind of pitch swing mechanism, belongs to the key position technical field on the coiling machine.

Background technology

The pitch mechanism of coiling machine is the indispensable structure of coiling machine, yet in the pitch structure of present coiling machine, the transmission fork is many, pivot angle is large, and in use, spring length is inconsistent, necessary manual correcting spring length before the mill spring, this not only affects the spring pitch precision, and has increased manufacturing cost; Simultaneously, conventional cam is installed in the casing, and pitch piece mounting structure is complicated, debugs very inconveniently, also is unfavorable for the maintenance of equipment.

Have based on this, make the utility model.

Summary of the invention

In the utility model, provide a kind of transmission accuracy height, good operating stability, simple in structure, the pitch swing mechanism of handled easily.

The technical solution adopted in the utility model is as follows:

The pitch swing mechanism, comprise camshaft, the first cam and the second cam are installed on the camshaft, the second cam and the first fork adopt and are connected, the second cam swings the first fork by the transmission of rolling bearing, be provided with regulating block between the first fork and the second fork, regulate by the second bolt between regulating block and the second fork, itself and the first fork contact position are changed, realize the variation of the second swinging angle of swinging rod size, the second fork and large fork are by the head Contact Transmission of the first bolt, be the higher pair drive mechanism between large fork and the support, support is installed on the pitch push rod, and pitch push rod top is provided with slot, and the pitch piece is installed in the slot.

For realizing better result of use, further arrange as follows:

Described the first cam, the second cam are arranged on oriented manipulation person's orientation.

The 3rd bolt has been installed at the top of described pitch push rod, in order to fixed knot apart from piece.

Described each fork pendulum angle≤10 °.

The transmission pressure angle of described each fork contact position≤10 °.

Action principle of the present utility model and beneficial effect are as follows:

1, camshaft rotates and drives the first cam, the second cam rotates, the first fork is swung, the second bolt can be according to the actual needs of pitch piece, regulate the size of the second swinging angle of swinging rod, by the second bolt, make regulating block different from the first fork contact position, swing with the first fork thereby drive the second fork.Between large fork and the second fork the first bolt is installed, when the second fork swings, swings the change in location that realizes the pitch piece thereby drive large fork.The first fork, the second fork and the large maximum pendulum angle of fork in swing process are also very little, each fork pendulum angle is no more than 10 °, each fork is in swing process, and the transmission pressure angle of contact position≤10 ° is compared with common pitch swing mechanism, in the utility model, fork has reduced one group, and this design not only makes fork each contact position sliding ratio in swing process extremely low, and it is very little to wear and tear, improve transmission force property, and greatly improved transmission accuracy and job stability;

2, the pitch piece is installed in the slot at pitch push rod top, can directly put into, get final product with the 3rd bolt is fixing again, when large fork swings, the support that drive is installed on the pitch push rod moves up and down, and can realize being installed in the pitch piece turnover (direction of pitch piece turnover refers to the direction of vertical paper among Fig. 1) in the slot, thereby reach control stage clip pitch, simple in structure, easy to operate;

3, in the utility model, with the cam person's that is arranged on the oriented manipulation position, convenient debugging.

Among the present invention, high auxiliary driving refers to the kinematic pair that two members consist of by some contact or line contact, and the transmission pressure angle refers to folded acute angle between the driven member direction of motion and the contact profile normal direction.

Description of drawings

Fig. 1 is the cross-sectional view of overlooking of the utility model pitch swing mechanism;

Fig. 2 is the positive cross-sectional view of the utility model pitch swing mechanism;

Fig. 3 is the perspective view of the utility model pitch swing mechanism.

Number in the figure: 1, camshaft; 2, the first cam; 3, the second cam; 4, the first bolt; 5, large fork; 6, the second bolt; 7, regulating block; 8, the second fork; 9, the first fork; 10, pitch piece; 11, slot; 12, support; 13, stage clip; 14, pitch push rod; 15, the 3rd bolt; 16, rolling bearing.

The specific embodiment

In conjunction with Fig. 1, Fig. 2 and Fig. 3, the utility model provides a kind of pitch swinging structure, comprise camshaft 1, the first cam 2 and the second cam 3 are installed on the camshaft 1, between the second cam 3 and the first fork 9 rolling bearing 16 is installed, be provided with regulating block 7 between the first fork 9 and the second fork 8, regulate by the second screw rod 6 between regulating block 7 and the second fork 8, the second fork 8 and large fork 5 are in transmission connection by the first bolt 4, support 12 is installed on the pitch push rod 14, be the higher pair drive mechanism between large fork 5 and the support 12, the top of pitch push rod 14 is provided with slot 11, and pitch piece 10 is installed in the slot 11, stage clip 13 is wrapped on the pitch push rod 14, and be positioned at the below of support 12, the 3rd bolt 15 be installed on the top of pitch push rod 14, in order to fixed knot apart from piece 10.

Behind the starting device, camshaft 1 rotates and drives the first cam 2 and 3 rotations of the second cam, the second cam 3 swings the first fork 9 by rolling bearing 16, and drive the second fork 8 by regulating block 7 and swing thereupon, by the first bolt 4, the second fork 8 swings large fork 5, needs according to pitch piece 10, the second screw rod 6 can be regulated the pivot angle size of the second fork 8, and the swing of large fork 5 moves up and down the support 12 that is installed on the pitch push rod 14, make pitch piece 10 turnover (direction of pitch piece turnover refers to the direction of vertical paper among Fig. 1) that are installed in the slot 11, can realize the production of different spring pitchs.

Claims

1. pitch swing mechanism, it is characterized in that: comprise camshaft, the first cam and the second cam are installed on the camshaft, the second cam and the first fork adopt and are connected, be provided with regulating block between the first fork and the second fork, regulate by the second bolt between regulating block and the second fork, the second fork and large fork are by the first bolt head Contact Transmission, large fork and support adopt high auxiliary driving, support is installed on the pitch push rod, pitch push rod top is provided with slot, and the pitch piece is installed in the slot.

2. pitch swing mechanism according to claim 1 is characterized in that: described the first cam, the second cam are arranged on oriented manipulation person's orientation.

3. pitch swing mechanism according to claim 1, it is characterized in that: the 3rd bolt that is used for fixing the pitch piece has been installed at the top of described pitch push rod.

4. pitch swing mechanism according to claim 1 is characterized in that: described each fork pendulum angle≤10 °.

5. pitch swing mechanism according to claim 1 is characterized in that: described each swing link transmission pressure angle≤10 °.