Press machine sealing height fine adjustment device
By introducing a height fine-tuning structure that meshes a worm gear and a worm wheel into the press, the problem of cumbersome adjustment of the press's downward stroke distance is solved, enabling convenient and high-precision adjustment and improving the stability and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-03-24
AI Technical Summary
The adjustment of the downward stroke distance of existing presses is cumbersome, time-consuming, labor-intensive, and the adjustment accuracy is uncontrollable.
The press employs a closed height fine-tuning device, which achieves fine-tuning of the ball head screw through the meshing of the worm and worm wheel. Combined with a dial and locking assembly, the locking structure is simplified, enabling convenient adjustment of the stroke distance.
It enables convenient adjustment of the press's downward stroke distance, improves adjustment accuracy and equipment operational stability, and extends service life.
Smart Images
Figure CN224028469U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a press machine technical field, concretely relates to a press machine closed height fine adjustment device. BACKGROUND
[0002] The press machine generally converts the rotary motion of the motor into the linear reciprocating motion of the slider through the slider-crank mechanism, and is a forging and pressing machine for forming and processing the blank. Therefore, many press machines link the motor and the slider through the ball head connecting rod to form the slider-crank mechanism.
[0003] Most of the common press machines use the ball head connecting rod, which is an important structure for connecting the transmission part and the slider part of the press machine. The overall structure is that the connecting rod body and the ball head screw are connected through threads, and two locking blocks are used to lock the ball head screw under the pressure of the screw.
[0004] Currently, the press machine needs to be disassembled first to adjust the downstroke distance, and then the up-down position of the ball head screw needs to be adjusted. Moreover, the fine adjustment process of the downstroke distance needs to be completed through multiple tests and disassembly and adjustment. It is not only time-consuming and labor-intensive, but also uncontrollable in terms of adjustment accuracy. SUMMARY
[0005] The utility model mainly solves the problems existing in the prior art, and provides a press machine closed height fine adjustment device, which has the characteristics of simple structure, good running stability, convenient height fine adjustment, and long service life. The problem of complicated adjustment of the downstroke distance of the press machine is solved. By loosening the locking piece, the height fine adjustment structure is used to easily adjust the downstroke distance.
[0006] The above technical problems of the utility model are mainly solved by the following technical scheme:
[0007] A press machine closed height fine adjustment device, comprising a pressing block seat, a crankshaft is arranged at the upper end of the pressing block seat, a connecting rod is arranged between the crankshaft and the pressing block seat, a spherical cover plate is arranged between the connecting rod and the pressing block seat and is fixed to the pressing block seat in a flange bolt connection mode, a ball head screw is arranged between the spherical cover plate and the connecting rod and is threadedly connected to the connecting rod, and a height fine adjustment assembly is arranged between the upper part of the ball head screw and the connecting rod. The height fine adjustment assembly comprises a worm, and a worm wheel is arranged between the worm and the connecting rod and is threadedly connected to the ball head screw. The worm and the worm wheel are engaged to adjust the height of the ball head screw.
[0008] Preferably, the side end of the worm wheel is provided with a fine adjustment end cover which is clamped and nested to the connecting rod, and the outer side end surface of the fine adjustment end cover is provided with a scale disc which is fixed in position by being sleeved to the worm.
[0009] Preferably, copper bushings are arranged between one end of the worm and the connecting rod and between the other end of the worm and the fine adjustment end cover and are sleeved to the worm.
[0010] As preferred, the lower part of the connecting rod is provided with a locking assembly between the ball screw rod, the locking assembly comprises a pair of locking nuts in pressure contact with the ball screw rod, the locking nuts are in plug-in connection with the connecting rod, a locking screw is arranged between the two locking nuts, and the connecting rod is provided with a fixing screw in plug-in limiting connection with the locking nuts.
[0011] As preferred, the upper end of the crankshaft is provided with a connecting rod cover in bolted connection with the connecting rod, and the connecting rod cover and the connecting rod are in clamping and nesting connection with the crankshaft.
[0012] As preferred, the baffle seat is provided with guide rails on both sides, and the baffle seat and the guide rails are provided with a sliding block body in sliding plug-in connection with the rear end of the guide rail.
[0013] As preferred, the front end of the guide rail is provided with a pusher in spring sliding connection with the baffle seat on both sides.
[0014] The utility model can achieve the following effects:
[0015] The utility model discloses a pressure machine closed height fine adjustment device, compared with the prior art, has the characteristics such as simple structure, good running stability, height fine adjustment convenient and long service life. The problem of complicated pressure machine downstroke distance adjustment is solved. By loosening the locking piece, the height fine adjustment structure is adopted to easily realize the adjustment of the downstroke distance. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the structure schematic diagram of the utility model.
[0017] Figure 2 It is the structure section view of the height fine adjustment assembly in the utility model.
[0018] Figure 3 It is the structure section view of the locking assembly in the utility model.
[0019] In the drawing: connecting rod cover 1, crankshaft 2, connecting rod 3, height fine adjustment assembly 4, locking assembly 5, ball screw rod 6, guide rail 7, pusher 8, baffle seat 9, spherical cover plate 10, sliding block body 11, worm wheel 12, copper bush 13, worm 14, dial 15, fine adjustment end cover 16, locking nut 17, locking screw 18, fixing screw 19. DETAILED DESCRIPTION
[0020] The technical scheme of the utility model will be further specifically explained below by examples and in connection with the drawings.
[0021] Example: as Figure 1 , Figure 2 and Figure 3As shown in the pressure machine closed height fine adjustment device, including the press block seat 9, both sides of the press block seat 9 are provided with guide rail 7, the press block seat 9 and guide rail 7 are provided with sliding block body 11 which is slidingly inserted with the rear end of guide rail 7. The front end of the guide rail 7 is provided with a pusher 8 which is spring slidingly connected with both sides of the press block seat 9. The upper end of the press block seat 9 is provided with a crankshaft 2, and the crankshaft 2 is provided with a connecting rod 3 between the press block seat 9, and the upper end of the crankshaft 2 is provided with a connecting rod cover 1 which is boltedly connected with the connecting rod 3. The connecting rod cover 1 and the connecting rod 3 are nested with the crankshaft 2. The connecting rod 3 and the press block seat 9 are provided with a spherical cover plate 10 which is flange boltedly connected with the press block seat 9, and the spherical cover plate 10 and the connecting rod 3 are provided with a ball screw 6 which is threadedly sleeved with the connecting rod 3. The upper part of the ball screw 6 and the connecting rod 3 are provided with a height fine adjustment assembly 4, and the height fine adjustment assembly 4 comprises a worm 14, and the worm 14 and the connecting rod 3 are provided with a worm wheel 12 which is threadedly sleeved with the ball screw 6. The ball screw 6 is adjusted up and down through the meshing of the worm 14 and the worm wheel 12. The side end of the worm wheel 12 is provided with a fine adjustment end cover 16 which is clampedly sleeved with the connecting rod 3, and the outer side end face of the fine adjustment end cover 16 is provided with a scale disc 15 which is sleeved and limited with the worm 14. The one end of the worm 14 and the connecting rod 3, and the other end of the worm 14 and the fine adjustment end cover 16 are both provided with a copper bushing 13 which is sleeved with the worm 14. The lower part of the connecting rod 3 and the ball screw 6 are provided with a locking assembly 5, and the locking assembly 5 comprises a pair of locking nuts 17 which are pressed with the ball screw 6, and the locking nuts 17 are insertedly connected with the connecting rod 3. The two locking nuts 17 are provided with a locking screw 18, and the connecting rod 3 is provided with a fixed screw 19 which is insertedly limited with the locking nut 17.
[0022] In summary, the pressure machine closed height fine adjustment device has the characteristics of simple structure, good running stability, convenient height fine adjustment and long service life. The problem of complicated adjustment of the downstroke distance of the press machine is solved. By loosening the locking member, the height fine adjustment structure is used to easily realize the adjustment of the downstroke distance.
[0023] For those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the basic characteristics of the application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0024] In summary, the above-mentioned is only a specific embodiment of the present application, but the structural characteristics of the present application are not limited to this. Any changes or modifications made by those skilled in the art within the scope of the present application are covered by the patent scope of the present application.
Claims
1. A press sealing height fine-tuning device, characterized in that: The device includes a pressure block seat (9), a crankshaft (2) is provided at the upper end of the pressure block seat (9), a connecting rod (3) is provided between the crankshaft (2) and the pressure block seat (9), a spherical cover plate (10) is provided between the connecting rod (3) and the pressure block seat (9) and is fixed to the pressure block seat (9) by flange bolts, a ball head screw (6) is provided between the spherical cover plate (10) and the connecting rod (3) and is threadedly sleeved with the connecting rod (3), a height fine adjustment component (4) is provided between the upper part of the ball head screw (6) and the connecting rod (3); the height fine adjustment component (4) includes a worm (14), a worm wheel (12) is provided between the worm (14) and the connecting rod (3) and is threadedly sleeved with the ball head screw (6), and the ball head screw (6) is finely adjusted by meshing between the worm (14) and the worm wheel (12).
2. The press sealing height fine-tuning device according to claim 1, characterized in that: The worm gear (12) is provided with a fine-tuning end cap (16) that is fitted into the connecting rod (3). The outer end face of the fine-tuning end cap (16) is provided with a scale (15) that is fitted into and fixed to the worm (14).
3. The press sealing height fine-tuning device according to claim 2, characterized in that: A copper bushing (13) is provided between one end of the worm (14) and the connecting rod (3), and between the other end of the worm (14) and the fine-tuning end cap (16) to be sleeved with the worm (14).
4. The press sealing height fine-tuning device according to claim 1, characterized in that: A locking assembly (5) is provided between the lower part of the connecting rod (3) and the ball head screw (6). The locking assembly (5) includes a pair of locking sleeves (17) that are pressed against the ball head screw (6). The locking sleeves (17) are inserted into the connecting rod (3). A locking screw (18) is provided between the two locking sleeves (17). The connecting rod (3) is provided with a fixing screw (19) that is inserted into and limited by the locking sleeves (17).
5. The press sealing height fine-tuning device according to claim 1, characterized in that: The crankshaft (2) is provided with a connecting rod cover (1) that is bolted to the connecting rod (3) at the upper end. The connecting rod cover (1) and the connecting rod (3) are nested together in a clamping manner to connect the crankshaft (2).
6. The press sealing height fine-tuning device according to claim 1, characterized in that: The pressure block seat (9) is provided with guide rails (7) on both sides, and a slider (11) is provided between the pressure block seat (9) and the guide rails (7) and is slidably inserted into the rear end of the guide rails (7).
7. The press sealing height fine-tuning device according to claim 6, characterized in that: The guide rail (7) is provided with a pusher (8) that is spring-loaded and slidably connected to both sides of the pressure block seat (9) at the front end.