Sliding block adjusting and limiting device

Abstract

The utility model belongs to the technical field of press machines, and particularly relates to a sliding block adjusting and limiting device which comprises a connecting rod and a nut fixedly connected to the lower end of the connecting rod, a screw is in threaded connection with the interior of the nut, a containing cavity is formed in the connecting rod, the upper end of the screw extends into the containing cavity, and a limiting piece is installed at the upper end of the screw. The limiting piece comprises a lantern ring fixedly connected to the upper end of the screw, the outer diameter of the lantern ring is smaller than the inner diameter of the containing cavity, the outer diameter of the lantern ring is larger than the inner diameter of the nut, the upper end of the screw is fixedly connected with a protruding part, the outer diameter of the protruding part is smaller than the outer diameter of the screw, and the lantern ring is connected to the outer side of the protruding part in a sleeving mode. A clamping spring is clamped to the outer side of the protruding part and located on the upper side of the lantern ring. In the process of adjusting the height of the sliding block, the phenomenon that the sliding block slides down due to excessive downward adjustment of the screw rod can be effectively reduced, and the safety is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of presses, and in particular relates to a slide block regulating limit device. Background Art

[0002] According to market feedback, the die height of the press needs to be adjusted after long-term use, that is, the height of the slide needs to be adjusted;

[0003] Some existing presses have electric mold adjustment, while others have manual mold adjustment. The specific structures are as follows Figure 1 As shown, the screw and the nut are directly connected. The height of the slider can be adjusted by turning the screw. However, during the adjustment process, since the length of the screw extending into the nut cannot be determined, the screw is easily adjusted too far downward and separated from the nut, causing the slider to slip. In severe cases, personal injury or death may even occur, greatly affecting the safety of the operator. Utility Model Content

[0004] The purpose of the utility model is to provide a slider adjustment limit device, which can effectively reduce the slider slipping phenomenon caused by excessive downward adjustment of the screw rod during the process of adjusting the slider height, thereby greatly improving safety.

[0005] The technical solutions adopted in this utility are as follows:

[0006] A slider adjustment limit device includes a connecting rod and a nut fixedly connected to the lower end of the connecting rod, the internal thread of the nut is connected to a screw rod, a storage cavity is opened inside the connecting rod, the upper end of the screw rod extends into the interior of the storage cavity, and a limit piece is installed on the upper end of the screw rod to limit the upper end of the screw rod to move only inside the storage cavity.

[0007] Furthermore, the limiting member includes a collar fixedly connected to the upper end of the screw rod, the outer diameter of the collar is smaller than the inner diameter of the receiving cavity, and the outer diameter of the collar is larger than the inner diameter of the nut.

[0008] Furthermore, a protrusion is fixedly connected to the upper end of the screw, the outer diameter of the protrusion is smaller than the outer diameter of the screw, the ring is sleeved on the outer side of the protrusion, a groove is provided on the outer side of the protrusion, and a retaining spring located on the upper side of the ring is clamped on the groove.

[0009] The technical effects achieved by this utility model are:

[0010] The present invention provides a slider adjustment limit device which limits the moving height of the screw rod by setting a limit piece at the upper end of the screw rod, which can effectively reduce the slider slipping caused by excessive downward adjustment of the screw rod during the process of adjusting the slider height, thereby greatly improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the prior art in this practical embodiment 1;

[0012] Figure 2 It is a schematic diagram of the structure in the practical embodiment 2;

[0013] Figure 3 This is a schematic diagram of the structure after the screw is lowered in the practical embodiment 2;

[0014] Figure 4 This is a practical Figure 3 A partial enlarged view of point A in the middle.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0016] 1. Connecting rod; 2. Nut; 3. Screw; 4. Accommodation chamber; 5. Locking screw; 6. Ring; 7. Circlip; 8. Protrusion; 9. Slot. DETAILED DESCRIPTION

[0017] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0018] Embodiment 1:

[0019] like Figure 1 As shown, the slider adjustment limit device in the prior art is introduced here, which is specifically, the slider adjustment limit device includes a connecting rod 1 and a nut 2 installed at the lower end of the connecting rod 1 through a locking screw 5, the internal thread of the nut 2 is connected with a screw 3, the lower end of the screw 3 is connected to the slider, and a storage cavity 4 is opened inside the connecting rod 1, and the upper end of the screw 3 can extend to the inside of the storage cavity 4. When the height of the slider needs to be adjusted, the screw 3 can be rotated, and the adjustment method is relatively simple.

[0020] Embodiment 2:

[0021] like Figure 2-4 As shown, a slider adjustment and limiting device comprises a connecting rod 1 and a nut 2 fixedly connected to the lower end of the connecting rod 1, the inner thread of the nut 2 is connected with a screw rod 3, the lower end of the screw rod 3 is connected to the slider, a storage cavity 4 is provided inside the connecting rod 1, and the upper end of the screw rod 3 extends to the inside of the storage cavity 4. When the height of the slider needs to be adjusted, the screw rod 3 can be rotated to complete the downward adjustment of the screw rod 3, thereby driving the slider to move;

[0022] The core of the technical solution is that a limit piece is installed at the upper end of the screw rod 3 extending to the inside of the storage chamber 4, which limits the upper end of the screw rod 3 to move only inside the storage chamber 4. When the screw rod 3 is adjusted downward to the limit position, the screw rod 3 can be limited, thereby effectively reducing the sliding phenomenon of the slider caused by excessive downward adjustment of the screw rod 3, greatly improving safety, and ensuring the accuracy of the machine tool die height adjustment.

[0023] like Figure 2-3 As shown, the limiting member includes a collar 6 fixedly connected to the upper end of the screw rod 3. The outer diameter of the collar 6 is smaller than the inner diameter of the receiving chamber 4. The collar 6 can slide freely inside the receiving chamber 4. The outer diameter of the collar 6 is larger than the inner diameter of the nut 2, so that when it moves to the nut 2, it is limited and cannot move.

[0024] Furthermore, in order to reduce the inner diameter of the storage chamber 4 and thus reduce the diameter requirement of the connecting rod 1, a boss 8 is fixedly connected to the upper end of the screw 3, and the outer diameter of the boss 8 is smaller than the outer diameter of the screw 3. The collar 6 is fixedly connected to the outer side of the boss 8, thereby reducing the outer diameter of the collar 6 while keeping the width of the collar 6 unchanged.

[0025] Among them, there are many ways to assemble the ring 6, such as threaded connection and welding. In the present technical solution, the ring 6 is sleeved on the outer side of the protrusion 8, and a retaining spring 7 is also clamped on the outer side of the protrusion 8 and located on the upper side of the ring 6. The ring 6 is limited and locked by the retaining spring 7, so that the ring 6 can be stably assembled on the outer side of the protrusion 8. The assembly method is relatively simple and easy to replace.

[0026] like Figure 3-4 As shown, in order to improve the locking stability of the retaining spring 7 on the sleeve ring 6 , a retaining groove 9 is provided on the outer side of the protrusion 8 , and the retaining spring 7 is clamped on the retaining groove 9 .

[0027] Among them, a locking screw 5 is installed on the nut 2, and the locking screw 5 is threadedly connected to the connecting rod 1. The connecting rod 1 and the nut 2 are connected together through the locking screw 5. The connection method is relatively simple and relatively stable after connection.

[0028] The working principle of the utility model is as follows: when the height of the slider needs to be adjusted, the screw rod 3 is rotated, and when the screw rod 3 is adjusted downward to the limit position, the collar 6 and the nut 2 are abutted against each other and cannot move downward any further, and the screw rod 3 can be limited by the collar 6, which effectively reduces the sliding phenomenon of the slider caused by excessive downward adjustment of the screw rod 3, greatly improves the safety, and ensures the accuracy of the height adjustment of the machine tool die.

[0029] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A slider adjustment and limiting device, comprising a connecting rod (1) and a nut (2) fixedly connected to the lower end of the connecting rod (1), wherein the inner thread of the nut (2) is connected to a screw rod (3), a receiving chamber (4) is provided inside the connecting rod (1), and the upper end of the screw rod (3) extends into the interior of the receiving chamber (4), characterized in that: A limiting member is installed at the upper end of the screw rod (3), limiting the upper end of the screw rod (3) to be able to move only inside the storage chamber (4).

2. A slider adjustment and limiting device according to claim 1, characterized in that: The limiting member comprises a collar (6) fixedly connected to the upper end of the screw rod (3), the outer diameter of the collar (6) being smaller than the inner diameter of the receiving cavity (4), and the outer diameter of the collar (6) being larger than the inner diameter of the nut (2).

3. A slider adjustment and limiting device according to claim 2, characterized in that: A protrusion (8) is fixedly connected to the upper end of the screw rod (3); the outer diameter of the protrusion (8) is smaller than the outer diameter of the screw rod (3); and the collar (6) is fixedly connected to the outer side of the protrusion (8).

4. A slider adjustment and limiting device according to claim 3, characterized in that: The sleeve ring (6) is sleeved on the outer side of the protruding portion (8), and a retaining spring (7) is clamped on the outer side of the protruding portion (8) and located on the upper side of the sleeve ring (6).

5. A slider adjustment and limiting device according to claim 4, characterized in that: A clamping groove (9) is provided on the outer side of the protruding portion (8), and the clamping spring (7) is clamped on the clamping groove (9).

6. The slider adjustment and limiting device according to claim 1, characterized in that: A locking screw (5) is installed on the nut (2), and the locking screw (5) is threadedly connected to the connecting rod (1).

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