CN201613324U

CN201613324U - Self-rotating clamping device used for quickly replacing upper anvil of forging press

Info

Publication number: CN201613324U
Application number: CN201020154698XU
Authority: CN
Inventors: 刘慧军
Original assignee: Taiyuan Heavy Industry Co Ltd
Current assignee: Taiyuan Heavy Industry Co Ltd
Priority date: 2010-03-18
Filing date: 2010-03-18
Publication date: 2010-10-27
Anticipated expiration: 2020-03-18

Abstract

The utility model relates to an auxiliary tool of a forging press, particularly to a self-rotating clamping device used for quickly replacing an upper anvil of a forging press. The utility model solves the problems in the prior art, such as complex structure, unbalance in stress on a clamping shaft and low speed of replacing the anvil. The self-rotating clamping device is characterized in that a protruding shoulder (1-2) is arranged at the top end of the clamping shaft (1), teeth (1-3) are formed in the middle of the clamping shaft and matched with a movable sleeve (3), a plane (3-2) is arranged at the upper end of the movable sleeve (3), teeth (3-1) are formed at the lower end of the movable sleeve (3), the movable sleeve (3) is sheathed above the teeth (1-3) of the clamping shaft (1), a compression spring (2) is arranged between the upper plane (3-2) of the movable sleeve (3) and the protruding shoulder (1-2) at the top end of the clamping shaft (1), four movable sleeve sliding chutes (3-3) are symmetrically formed on the surface of the movable sleeve (3), four clamping shaft sliding chutes (1-3-1) corresponding to the movable sleeve sliding chutes (3-3) are formed on the surfaces of the teeth (3-1) of the clamping shaft (1), and four guide ridges (4) are arranged inside and are in sliding fit with the movable sleeve sliding chutes (3-3) and the clamping shaft sliding chutes (1-3-1) respectively.

Description

The self-rotating clamping device that is used for rapidly changing upper anvil for forging press

Technical field

The utility model relates to the accessory of forging press, particularly the clamping device of rapidly changing upper anvil for forging press.

Background technology

Forging press is changed upper and lower hammering block according to the frequent needs of technological requirement, when replacing with anvil, because it is suspended on the moved cross beam, generally finishes the replacing of anvil with several a kind of clamping devices that are installed on the moved cross beam.Change the anvil time in order to reduce, forging press has used a kind of anvil quick change clamping device of going up as shown in Figure 1 now, and mainly by clamp shaft 1, working cylinder 8, tooth bar 7, key 6, gear 5 is formed.When getting anvil, clamp shaft 1 moves down along keyway, in the T of its lower end shape gib head 1-1 insertion in the T-slot of anvil, working cylinder promotes pinion and rack and makes clamp shaft 1 half-twist then, block thereby make T shape gib head will go up anvil, move on the clamp shaft 1 then, mention anvil, be adjacent to the moved cross beam of press until last anvil, finish connection.When putting anvil, move with to get anvil just in time opposite.There is following shortcoming in one type of prior art syringe: 1, complex structure, particularly be provided with working cylinder, and not only to connect fluid pressure line, also need control element and sensing element; 2, because rack-and-pinion one side has radial effect power to clamp shaft, clamp shaft is subjected to force unbalance, and is fragile; 3, it is slow to change anvil speed.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of self-rotating clamping device that is used for rapidly changing upper anvil for forging press is provided, and solves existing upward anvil quick change clamping device complex structure, clamp shaft and is subjected to force unbalance, changes the slow-footed problem of anvil.

The utility model is achieved through the following technical solutions:

A kind of self-rotating clamping device that is used for rapidly changing upper anvil for forging press, comprise: the clamp shaft 1 of lower end band T shape gib head 1-1, it is characterized in that: there is convex shoulder 1-2 on described clamp shaft 1 top, the middle part is provided with and the tooth 1-3 that moves cover 3 engagements, moving cover 3 upper ends is plane 3-2, the lower end is tooth 3-1, mobile cover 3 is sleeved on the tooth 1-3 top of clamp shaft 1, be provided with compression spring 2 between the last plane 3-2 of mobile cover 3 and the convex shoulder 1-2 on clamp shaft 1 top, the surface of moving cover 3 is arranged with 4 and moves cover chute 3-3, the surface of the tooth 1-3 of clamp shaft 1 is provided with corresponding 4 clamp shaft chute 1-3-1 with described mobile cover chute 3-3, is respectively equipped with 4 guiding ribs 4 that are slidingly matched in described mobile cover chute 3-3 and the described clamp shaft chute 1-3-1.

Described guiding rib 4 and the described mobile cover chute 3-3 that is mated and described clamp shaft chute 1-3-1 have corresponding gradient from top to bottom.

The utility model compared with prior art owing to saved working cylinder, thereby has been saved cost greatly; Owing to utilize moving up and down of clamp shaft to realize the spinning of clamp shaft, simplified quick change anvil rotating mechanism on the structure, become two-step action in the operation into step action, make that the motion of clamp shaft is more coherent, improved the speed of press replacing hammering block; Because the utility model structure is symmetrical, thereby the clamp shaft stress balance has improved the stressing conditions of clamp shaft.

Description of drawings

Fig. 1 is the structural representation of anvil clamping device on the existing forging press;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is the explosive view of Fig. 2;

Fig. 4 to Figure 11 is an action sequence diagram of the present utility model.

Below in conjunction with drawings and Examples the utility model is further described.

The specific embodiment

As Fig. 2, shown in 3, a kind of self-rotating clamping device that is used for rapidly changing upper anvil for forging press, comprise: the lower end is the clamp shaft 1 of band T shape gib head 1-1, there is convex shoulder 1-2 on described clamp shaft 1 top, the middle part is provided with and the tooth 1-3 that moves cover 3 engagements, moving cover 3 upper ends is plane 3-2, the lower end is tooth 3-1, mobile cover 3 is sleeved on the tooth 1-3 top of clamp shaft 1, be provided with compression spring 2 between the last plane 3-2 of mobile cover 3 and the convex shoulder 1-2 on clamp shaft 1 top, the surface of moving cover 3 is arranged with 4 and moves cover chute 3-3, the surface of the tooth 1-3 of clamp shaft 1 is provided with corresponding 4 clamp shaft chute 1-3-1 with described mobile cover chute 3-3, be respectively equipped with 4 guiding ribs 4 that are slidingly matched with it in described mobile cover chute 3-3 and the described clamp shaft chute 1-3-1, guiding rib 4 maintains static.

Described guiding rib 4 both can contact with clamp shaft chute 1-3-1, can contact with the tooth 1-3 of clamp shaft 1 again.

When described clamp shaft chute 1-3-1 contacted with guiding rib 4, the tooth 1-3 of clamp shaft 1 and the tooth 3-1 that moves cover 3 partly meshed.

The tooth 3-1 of described mobile cover 3 and the tooth 1-3 of clamp shaft 1 are engaged to the complete engagement process from part, one side the tooth top of the tooth 1-3 of clamp shaft 1 is from the another side that rotates to of guiding rib 4.

Can not come off from chute for guiding rib 4 is moved up and down in the process at clamp shaft 1, described guiding rib 4 and the described mobile cover chute 3-3 that is mated and described clamp shaft chute 1-3-1 have corresponding gradient from top to bottom.

The course of work of the present utility model is shown in Fig. 4,5,6,7,8,9,10:

Initial position such as Fig. 4, clamp shaft 1 have just begun when moving down, and move cover 3 in clamp shaft 1 upper end, because the constraint of guiding rib 4, moving cover 3 can only move up and down, and can not rotate, and spring is in compressive state.

When clamp shaft 1 is displaced downwardly to the lower end (Fig. 5), clamp shaft chute 1-3-1 has broken away from guiding rib 4, and tooth 1-3 contacts with guiding rib 4, simultaneously, compression spring 2 promotes to move cover 3, the tooth 3-1 that moves cover 3 acts on clamp shaft 1, make it be rotated counterclockwise (Fig. 6), break away from guiding rib 4 fully until the tooth 1-3 of clamp shaft 1, moving the tooth 3-1 of cover 3 and the tooth 1-3 of clamp shaft 1 meshes fully, in this process, when moving upward, clamp shaft 1 is rotated counterclockwise again, one side the tooth top of the tooth 1-3 of clamp shaft 1 rotates to another side (Fig. 7) from guiding rib 4.

When clamp shaft 1 moves up (Fig. 8), the another side of clamp shaft 1 tooth 1-3 contacts with guiding rib 4, this face moves along the lower end of guiding rib 4 then, thereby make clamp shaft 1 continue to be rotated counterclockwise (Fig. 9), in this process, the tooth 1-3 of clamp shaft 1 acts on the tooth 3-1 that moves cover 3, make to move and overlap move up (with respect to clamp shaft), thereby make the spring compression, contact (Figure 10) until clamp shaft chute 1-3-1 with guiding rib 4, at this moment, clamp shaft 1 is finished 90 ° rotation, clamp shaft chute 1-3-1 contacts fully with guiding rib 4 then, and clamp shaft 1 moves (Figure 11) straight up along guiding rib 4.Like this, clamp shaft 1 once moves down when moving up then, has also finished its rotation of 90 °.

Claims

1. self-rotating clamping device that is used for rapidly changing upper anvil for forging press, comprise: the lower end is the clamp shaft (1) of T shape gib head (1-1), it is characterized in that: there is convex shoulder (1-2) on described clamp shaft (1) top, the middle part is provided with and the tooth (1-3) that moves cover (3) engagement, moving cover (3) upper end is plane (3-2), the lower end is tooth (3-1), move and overlap tooth (1-3) top that (3) are sleeved on clamp shaft (1), be provided with compression spring (2) between the last plane (3-2) of mobile cover (3) and the convex shoulder (1-2) on clamp shaft (1) top, the surface of moving cover (3) is arranged with 4 and moves cover chute (3-3), the surface of the tooth (1-3) of clamp shaft (1) is provided with and the corresponding 4 clamp shaft chutes of described mobile cover chute (3-3) (1-3-1), is respectively equipped with 4 guiding ribs (4) that are slidingly matched in described mobile cover chute (3-3) and the described clamp shaft chute (1-3-1).

2. according to the described self-rotating clamping device that is used for rapidly changing upper anvil for forging press of claim 1, it is characterized in that: described guiding rib (4) and the described mobile cover chute (3-3) that is mated and described clamp shaft chute (1-3-1) have corresponding gradient from top to bottom.