A stroke-adjustable slider driving structure

Abstract

The utility model discloses a stroke adjustable slider drive structure, including mounting block, be provided with the mounting groove on the mounting block, be provided with the pressure block in the mounting groove, the pressure block end face in the mounting groove is the drive surface, the drive surface one side's mounting groove is rotationally provided with the lead screw, and the axis of lead screw is with the drive surface intersection, be provided with the worm wheel and drive block on the lead screw, and drive block is with the lead screw through the thread cooperation connection, and one side surface of drive block and mounting groove inner wall slidingly fits, and another opposite side surface and drive surface slidingly connect, be provided with the worm in the mounting groove of worm wheel one side. Through worm wheel and worm mechanism has realized the vertical transmission of power, makes the whole structure more compact and has the self -locking function, can effectively prevent the pressure block and move because of the external force effect, guarantees the stability of connection. Meanwhile, the thread cooperation of lead screw and drive block will convert the rotary motion into linear motion, makes the adjustment of pressure block more simple, and the adjustment precision is more accurate controllable.

Description

Technical Field

[0001] This utility model belongs to the field of press slide technology, and in particular relates to a slide drive structure with adjustable stroke. Background Technology

[0002] With the development of large-scale manufacturing and product personalization, the trend of multi-variety, small-batch, multi-variety co-production, large-scale and integrated stamping parts is becoming increasingly apparent. This requires that the presses used to produce products not only have high production efficiency and high product precision, but also be able to withstand large loads and have greater flexibility, and be able to quickly change the output motion trajectory.

[0003] However, the sliding distance of existing eccentric wheel presses is related to the size and installation angle of the eccentric wheel. When adjusting the sliding stroke, it is generally necessary to stop the machine and adjust the installation angle of the eccentric wheel. Stopping the machine will affect production efficiency and increase production costs. At the same time, due to the large weight of the sliding block, it is difficult to control the adjustment accuracy.

[0004] Therefore, we need to design a slider drive structure with adjustable stroke to solve these problems. Utility Model Content

[0005] The problem this invention aims to solve is to provide a slider drive structure with adjustable stroke.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An adjustable-stroke slider drive structure includes a mounting block with a mounting groove. A pressure block is disposed within the mounting groove, and the end face of the pressure block within the mounting groove serves as a driving surface. A lead screw is rotatably disposed within the mounting groove on one side of the driving surface, with the axis of the lead screw intersecting the driving surface. A worm gear and a driving block are disposed on the lead screw. The driving block and the lead screw are connected by a threaded connection. One side of the driving block slides against the inner wall of the mounting groove, and the other opposite side slides against the driving surface. A worm is disposed within the mounting groove on one side of the worm gear, with the end of the worm protruding from the side wall of the mounting groove and located outside the mounting block. The worm also meshes with the worm gear.

[0008] Preferably, the worm gear is located in the middle of the lead screw, and there are two drive blocks, which are located on both sides of the worm gear and are connected to the drive surface.

[0009] By employing a symmetrically distributed dual-drive block design, the pressure block is subjected to uniform force, avoiding skewing or jamming caused by unilateral force application, thus improving the smoothness and reliability of the pressure block's movement. Simultaneously, this structure causes the radial forces on the lead screw to cancel each other out, reducing bearing wear and extending its service life.

[0010] Preferably, the driving block is provided with an adjustment block, and an adjustment groove is formed on the driving surface, wherein the adjustment groove and the adjustment block are slidably engaged.

[0011] The sliding fit between the adjusting block and the adjusting groove provides precise guidance for the movement of the drive block, effectively preventing the drive block from deviating or wobbling during movement and improving transmission accuracy.

[0012] Preferably, the threads on the lead screws located on both sides of the worm are opposite in direction, there are two driving surfaces that are symmetrically distributed along the worm wheel, and the driving block located on the same side of the worm wheel is connected to the driving surface.

[0013] The opposite screw direction design allows the two drive blocks to move synchronously towards or away from each other when the worm rotates, achieving bidirectional drive of the pressure block. The symmetrically distributed drive surfaces and corresponding drive blocks further ensure the balance of force on the pressure block, enabling it to move smoothly.

[0014] Preferably, a connecting block is fixedly provided on the mounting block, the connecting block is provided with a connecting hole, the driving block is positioned opposite to the connecting block, and the stroke of the driving block does not exceed the thickness of the connecting block.

[0015] The connecting block facilitates the connection between the mounting block and other components, and the connecting hole can be used to install bolts and other fasteners. The limitation on the drive block's stroke prevents structural damage caused by excessive drive block movement, acting as a mechanical limiter and improving system safety. Simultaneously, because the drive block is in contact with the inner wall of the mounting groove, the force acting on the drive block can be transmitted to the connecting block, preventing damage to the mounting block.

[0016] Preferably, guide grooves are provided on a set of opposite sidewalls of the pressure block, and guide strips are provided on a set of opposite inner walls of the mounting groove. The guide grooves and guide strips are positioned opposite each other and are slidably connected to each other.

[0017] The sliding fit between the guide groove and the guide bar provides additional guidance and support for the movement of the pressure block, further improving the straightness and stability of its movement. This structure effectively resists lateral forces, preventing the pressure block from tilting during operation and ensuring its working accuracy.

[0018] Preferably, a stabilizing groove is provided on the inner wall of the mounting groove on one side of the lead screw, and a stabilizing block is provided on the drive block. The stabilizing block is located in the stabilizing groove and slides in cooperation with the stabilizing groove.

[0019] The combination of the stabilizing groove and the stabilizing block enhances the stability of the drive block during movement, reducing bending deformation and vibration of the lead screw. This structural design improves the rigidity of the system, makes the transmission smoother, reduces noise and wear, and extends the service life of the equipment.

[0020] Preferably, an adjusting wheel is fixedly provided at the end of the worm gear located outside the mounting block.

[0021] The adjustable wheel facilitates manual adjustment of the worm gear by the operator, making the installation, commissioning, and maintenance of the equipment more convenient. By rotating the adjustable wheel, the position of the pressure block can be precisely controlled to meet the needs of different working conditions, thus improving the operability and adaptability of the equipment.

[0022] Preferably, a limiting strip is also fixedly provided on a set of opposite outer walls of the mounting block, and the limiting strip is slidably connected to the limiting groove on the main body of the equipment.

[0023] This design, with the sliding engagement of the limiting strip and the limiting groove, provides precise guidance for the installation of the mounting block on the main body of the equipment, ensuring the correct position of the mounting block. At the same time, this structure limits the range of motion of the mounting block, preventing displacement or shaking during operation, thus improving the stability and reliability of the entire equipment.

[0024] The advantages and positive effects of this utility model are:

[0025] This invention achieves vertical power transmission through a worm gear mechanism, making the overall structure more compact and providing a self-locking function. This effectively prevents the pressure block from moving due to external forces, ensuring connection stability. Simultaneously, the threaded engagement between the lead screw and the drive block converts rotational motion into linear motion, simplifying pressure block adjustment and making the adjustment more precise and controllable. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the installation of this utility model on the main body of the equipment;

[0028] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the main sectional view of the internal structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the internal structure of this utility model from the left side;

[0031] Figure 5 This is a schematic diagram of the pressing block structure of this utility model;

[0032] Figure 6 This is a schematic diagram of the drive block structure of this utility model.

[0033] The annotations in the attached figures are explained as follows:

[0034] 1. Equipment body; 2. Slider; 201. Mounting block; 202. Limiting strip; 203. Connecting block; 204. Connecting hole; 205. Adjusting wheel; 206. Worm gear; 207. Worm; 208. Stabilizing block; 209. Stabilizing groove; 210. Driving block; 211. Adjusting groove; 212. Adjusting block; 213. Lead screw; 214. Mounting groove; 215. Pressure block; 216. Driving surface; 217. Guide groove; 218. Guide strip. Detailed Implementation

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The present invention will be further described below with reference to the accompanying drawings:

[0038] Example: Figures 1-6 As shown, a stroke-adjustable slider drive structure includes a mounting block 201. A mounting groove 214 is formed on the bottom surface of the mounting block 201. The mounting groove 214 is a rectangular groove structure, and its depth direction is perpendicular to the mounting base surface of the mounting block 201. A pressure block 215 is disposed within the mounting groove 214. The pressure block 215 is a rectangular block structure, and its external dimensions are adapted to the inner contour of the mounting groove 214. The height of the pressure block 215 is greater than the depth of the mounting groove 214, so that part of the pressure block 215 protrudes outside the mounting groove 214. The end face of the pressure block 215 located within the mounting groove 214 is a driving surface 216, which is a flat inclined surface that intersects with the top surface of the mounting groove 214.

[0039] A lead screw 213 is rotatably mounted in the mounting groove 214 on one side of the drive surface 216. The lead screw 213 is rotatably connected to the inner wall of the mounting groove 214 through bearing seats at both ends, and the axis of the lead screw 213 intersects the drive surface 216. A worm gear 206 and a drive block 210 are mounted on the lead screw 213. The worm gear 206 is fixed to the middle position of the lead screw 213 by a key connection. The drive block 210 is connected to the lead screw 213 by a threaded engagement, and one side of the drive block 210 slides against the inner wall of the mounting groove 214, while the other opposite side slides against the drive surface 216.

[0040] A worm 207 is installed in the mounting groove 214 on one side of the worm gear 206. The worm 207 is rotatably connected to the inner wall of the mounting groove 214 through bearing seats at both ends. The end of the worm 207 protrudes from the side wall of the mounting groove 214 and is located outside the mounting block 201. The worm 207 also meshes with the worm gear 206, forming a worm gear 206-worm 207 transmission pair. When the end of the worm 207 located outside the mounting block 201 is rotated, the lead screw 213 is driven to rotate synchronously through the worm gear 206-worm 207 transmission.

[0041] The worm gear 206 and worm 207 mechanism enables vertical power transmission, making the overall structure more compact and providing a self-locking function. This effectively prevents the pressure block 215 from loosening due to external forces, ensuring the stability of the connection. Simultaneously, the threaded engagement between the lead screw 213 and the drive block 210 converts rotary motion into linear motion, making the drive of the pressure block 215 more precise and controllable.

[0042] There are two drive blocks 210, located on opposite sides of the worm gear 206 and connected to two drive surfaces 216 symmetrically distributed along the worm gear 206. The threads on the lead screws 213 on both sides of the worm 207 have opposite directions, and the drive blocks 210 on the same side of the worm gear 206 are connected to the drive surfaces 216. When the lead screw 213 rotates, due to the opposite directions of the threads on both sides, the two drive blocks 210 will move synchronously towards or away from each other along the axis of the lead screw 213, thereby pushing the pressure block 215 connected to it to move.

[0043] By adopting a symmetrically distributed design of dual drive blocks 210, the pressure block 215 is subjected to uniform force, avoiding the skewing or jamming caused by unilateral force, and improving the smoothness and reliability of the movement of the pressure block 215.

[0044] The opposing thread direction design on the lead screw 213 allows the two drive blocks 210 to move synchronously in opposite directions or in opposite directions when the lead screw 213 rotates, achieving bidirectional drive of the pressure block 215. The symmetrically distributed drive surfaces 216 and the corresponding drive blocks 210 further ensure the balance of forces on the pressure block 215, enabling it to move smoothly. Simultaneously, this structure causes the radial forces on the lead screw 213 to cancel each other out, reducing bearing wear and extending service life.

[0045] The drive block 210 is equipped with an adjusting block 212. The adjusting block 212 has a T-shaped cross-section, and an adjusting groove 211 is formed on the drive surface 216. The adjusting groove 211 is a T-shaped groove adapted to the adjusting block 212. The adjusting groove 211 and the adjusting block 212 slide together, realizing the sliding connection and power transmission between the drive block 210 and the pressure block 215. At the same time, the sliding engagement between the adjusting block 212 and the adjusting groove 211 provides precise guidance for the movement of the drive block 210, effectively preventing the drive block 210 from deviating or shaking during movement, and improving installation accuracy.

[0046] A connecting block 203 is fixedly mounted on the mounting block 201 and is welded to the top surface of the mounting block 201. The connecting block 203 has a connecting hole 204, which facilitates the connection between the mounting block 201 and other components. The connecting hole 204 can be used to pass through bolts and other connecting parts. The driving block 210 in the mounting groove 214 is positioned opposite the connecting block 203, and the stroke of the driving block 210 does not exceed the thickness of the connecting block 203. The limitation of the stroke of the driving block 210 not only prevents structural damage caused by excessive movement of the driving block 210, thus playing a limiting role and improving the safety of the system, but also, because the driving block 210 is in contact with the inner wall of the mounting groove 214, the force on the driving block 210 can be transmitted to the connecting block 203, preventing damage to the mounting block 201.

[0047] Guide grooves 217 are respectively formed on a set of opposite side walls of the pressure block 215. The guide grooves 217 are rectangular groove structures. Guide strips 218 are respectively provided on a set of opposite inner walls of the mounting groove 214. The guide strips 218 are rectangular strip structures adapted to the guide grooves 217. The guide grooves 217 and guide strips 218 are positioned opposite each other and are slidably connected to each other, providing limit and guidance for the linear movement of the pressure block 215, further improving the straightness and stability of the movement of the pressure block 215. It can effectively resist lateral forces, prevent the pressure block 215 from tilting during operation, and ensure the working accuracy of the pressure block 215.

[0048] A stabilizing groove 209 is provided on the inner wall of the mounting groove 214 on one side of the lead screw 213. The cross-section of the stabilizing groove 209 is also a T-shaped structure. A stabilizing block 208 is provided on the drive block 210. The stabilizing block 208 is a T-shaped structure adapted to the stabilizing groove 209. The stabilizing block 208 is located inside the stabilizing groove 209 and slides in contact with the stabilizing groove 209, which improves the stability of the drive block 210 during movement and reduces the bending deformation and vibration of the lead screw 213. This can improve the rigidity of the system, make the transmission smoother, and extend the service life of the equipment.

[0049] An adjusting wheel 205 is fixedly installed at the end of the worm 207 located outside the mounting block 201. The adjusting wheel 205 is a handwheel structure with anti-slip texture on its outer circumference for easy manual operation. A scale is also provided on the side of the mounting block 201 on one side of the adjusting wheel 205, which can be used to precisely control the adjustment position of the pressure block 215.

[0050] Limiting strips 202 are also fixedly installed on a set of opposite outer walls of the mounting block 201. The limiting strips 202 are slidably connected to the limiting grooves on the main body 1 of the equipment, so as to realize the positioning and guiding installation of the mounting block 201 on the main body 1 of the equipment.

[0051] The working process of this embodiment is as follows: When it is necessary to adjust the position of the pressure block 215, the operator rotates the adjusting wheel 205. The adjusting wheel 205 will drive the internal worm 207 to rotate. The rotation of the worm 207 will drive the meshing worm wheel 206 to rotate. When the worm wheel 206 rotates, it will drive the coaxially connected lead screw 213 to rotate. After the lead screw 213 rotates, it will drive the drive block 210 to move along the axial direction of the lead screw 213 through the thread.

[0052] Since the driving surface 216 is an inclined plane, when the lead screw 213 rotates and drives the slider 2 to approach the worm gear 206, the driving block 210 moves from the high side to the low side of the driving surface 216. The driving block 210 is connected to the mounting groove 214 with the cooperation of the stabilizing block 208 and the stabilizing groove 209. Therefore, when the driving block 210 approaches the worm gear 206, the pressure block 215 will move into the mounting groove 214 with the cooperation of the adjusting groove 211 and the adjusting block 212. If the driving block 210 moves away from the worm 207, the driving block 210 moves from the low side to the high side. At this time, the pressure block 215 will be pushed out of the mounting groove 214 by the driving block 210.

[0053] The entire structure achieves speed reduction and torque increase through worm gear 206 and worm 207 transmission, allowing operators to make adjustments with less force. Linear motion conversion is achieved through threaded transmission. The various structures cooperate and work together to ensure the stability and accuracy of the adjustment process.

[0054] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A slider drive structure with adjustable stroke, characterized in that: The system includes a mounting block (201) with a mounting groove (214). A pressure block (215) is disposed within the mounting groove (214). The end face of the pressure block (215) located within the mounting groove (214) is a driving surface (216). A lead screw (213) is rotatably disposed within the mounting groove (214) on one side of the driving surface (216), and the axis of the lead screw (213) intersects with the driving surface (216). A worm gear (206) and a driving block (210) are disposed on the lead screw (213). The drive block (210) is connected to the lead screw (213) by a threaded connection. One side of the drive block (210) slides against the inner wall of the mounting groove (214), and the other opposite side slides against the drive surface (216). A worm (207) is provided in the mounting groove (214) on one side of the worm wheel (206). The end of the worm (207) protrudes from the side wall of the mounting groove (214) and is located outside the mounting block (201). The worm (207) also meshes with the worm wheel (206).

2. The adjustable-stroke slider drive structure according to claim 1, characterized in that: The worm gear (206) is located in the middle of the lead screw (213). There are two drive blocks (210), which are located on both sides of the worm gear (206) and are connected to the drive surface (216).

3. The adjustable-stroke slider drive structure according to claim 1, characterized in that: An adjustment block (212) is provided on the drive block (210), and an adjustment groove (211) is provided on the drive surface (216). The adjustment groove (211) and the adjustment block (212) are in sliding cooperation.

4. The adjustable-stroke slider drive structure according to claim 1, characterized in that: The threads on the lead screws (213) located on both sides of the worm (207) are opposite in direction. There are two driving surfaces (216) and they are symmetrically distributed along the worm wheel (206). The driving block (210) located on the same side of the worm wheel (206) is connected to the driving surface (216).

5. The adjustable-stroke slider drive structure according to claim 1, characterized in that: A connecting block (203) is fixedly provided on the mounting block (201), and a connecting hole (204) is provided on the connecting block (203). The driving block (210) is positioned opposite to the connecting block (203), and the stroke of the driving block (210) does not exceed the thickness of the connecting block (203).

6. The adjustable-stroke slider drive structure according to claim 1, characterized in that: Guide grooves (217) are respectively provided on a set of opposite side walls of the pressure block (215), and guide strips (218) are respectively provided on a set of opposite inner walls of the mounting groove (214). The guide grooves (217) and the guide strips (218) are opposite to each other and are slidably connected to each other.

7. The adjustable-stroke slider drive structure according to claim 1, characterized in that: A stabilizing groove (209) is provided on the inner wall of the mounting groove (214) on one side of the lead screw (213), and a stabilizing block (208) is provided on the drive block (210). The stabilizing block (208) is located in the stabilizing groove (209) and slides in cooperation with the stabilizing groove (209).

8. The adjustable-stroke slider drive structure according to claim 1, characterized in that: An adjusting wheel (205) is fixedly provided at the end of the worm (207) located outside the mounting block (201).

9. The adjustable-stroke slider drive structure according to claim 1, characterized in that: Limiting strips (202) are also fixedly provided on a set of opposite outer walls of the mounting block (201), and the limiting strips (202) are slidably connected to the limiting grooves on the main body of the equipment (1).

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