A new transmission structure for punch press

Abstract

The utility model relates to punch press equipment technical field discloses a novel transmission structure for punch press, including the shell, the inner wall of shell is provided with transmission adjusting mechanism, the top of shell is provided with lubricating mechanism, the lubricating mechanism is used for guaranteeing the lubrication at transmission, the front of shell is provided with shielding subassembly, the back of shell is provided with measurement subassembly, transmission adjusting mechanism includes two shaft transmission, the outer wall upside and downside of two shaft transmission are slidably connected in the inner wall left and right side of shell. In the utility model, through the rotation of two -way screw rod, the left and right screw thread of two -way screw rod outer wall drives two limit sleeve to be along the axial synchronous approach or away, because limit sleeve is fixed in the inner wall of shaft transmission, so drives two shaft transmission to slide in the inner wall left and right of shell, realizes the adjustment of two transmission shaft center distance, reduces punch press adjusting time, expands punch press application range.

Description

Technical Field

[0001] This utility model relates to the field of punch press equipment technology, and in particular to a novel transmission structure for punch presses. Background Technology

[0002] In the field of punch press technology, stamping is widely used due to its advantages of saving materials and energy, high efficiency and adaptability to multiple molds. As the core component of punch press, the transmission structure needs to adjust the center distance between the two transmission shafts when processing different workpieces. Existing punch press transmission structures usually use a whole plate to connect the transmission shafts, and the shaft distance is adjusted by the cooperation of the intermediate plate and the pin. As the manufacturing industry increases the requirements for stamping accuracy, the traditional structure has higher requirements for the convenience and accuracy of shaft distance adjustment when dealing with complex workpiece processing.

[0003] A search revealed Chinese Patent Publication No. CN210174249U, which discloses a gantry punch press. The press includes a bed, a control assembly housed within the bed, a workpiece table mounted on the bed for clamping workpieces, a gear transmission structure mounted on the bed, a pulley transmission structure connected to the gear transmission structure, a punch structure connected to the output shaft of the gear transmission structure, and a discharge channel mounted on the workpiece table. The punch structure is positioned above the workpiece table and connected to the discharge channel. This gantry punch press can utilize a multi-stage precision transmission design. The punch of the press provides a smooth power transmission to the punch head. The gear transmission structure and the pulley transmission structure are combined for multi-stage transmission. The punch structure is equipped with high-precision assembled guide pillars and guide sleeves. The press can improve the accuracy of stamping workpieces, increase efficiency, and save labor and working time. However, in actual use, the existing transmission structure uses a whole plate during workpiece processing. It cannot adjust the center distance between the two transmission shafts through the intermediate plate. It is necessary to adjust the position of the pin to adjust the distance between the two shaft connecting plates. This results in different adjustment lengths of the two shaft connecting plates, which leads to a larger machining accuracy of the press. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a novel transmission structure for punch presses, aiming to improve the problem in the prior art that requires adjusting the position of the pin to adjust the distance between the two shaft connecting plates, and thus adjust the center distance between the two transmission shafts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel transmission structure for a punch press, comprising a housing, a transmission adjustment mechanism provided on the inner wall of the housing, a lubrication mechanism provided on the top of the housing, the lubrication mechanism being used to ensure lubrication at the transmission point, a shielding component provided on the front side of the housing, and a measuring component provided on the rear side of the housing. The transmission adjustment mechanism includes two shaft drives. The outer walls of the two shaft drives are slidably connected to the left and right sides of the inner wall of the housing, respectively. The inner walls of the shaft drives are fixedly connected to limit sleeves. The inner walls of the two limit sleeves are threaded with bidirectional lead screws. A hexagonal block is fixedly connected to the middle of the outer wall of the bidirectional lead screw. An external drive assembly is provided at the right end of the bidirectional lead screw.

[0006] The above technical solution involves using a wrench to engage with the outside of the hexagonal block, thereby driving the bidirectional lead screw to rotate. At this time, the outer wall of the bidirectional lead screw can drive two limiting sleeves to move closer or further away synchronously along the axial direction. Since the limiting sleeves are fixed to the inner wall of the shaft drive, the two shaft drives can slide left and right on the inner wall of the housing, thereby adjusting the center distance between the two drive shafts. This reduces the adjustment time of the punch press and expands the application range of the punch press.

[0007] As a further description of the above technical solution: The lubrication mechanism includes a one-way injection nozzle, the outer wall of which is fixedly connected to the top of the housing. The bottom end of the one-way injection nozzle penetrates the top of the housing and communicates with a storage box. Corrugated hoses are connected to the left and right sides of the rear part of the outer wall of the storage box. A connecting groove is provided on the adjacent side of the outer wall of the two shaft drives. The inner wall of the connecting groove is connected to the other end of the corresponding corrugated hose. An annular groove is provided on the inner wall of the shaft drive. A guide sealing assembly is provided on the outer wall of the shaft drive.

[0008] The above technical solution involves injecting lubricating oil into the storage tank through a one-way injection nozzle. During the adjustment process, when the shaft drive slides, the corrugated hose moves with it and remains connected. The lubricating oil flows into the annular groove through the connecting groove, thereby reducing frictional loss with the transmission contact surface and ensuring its smooth rotation.

[0009] As a further description of the above technical solution: The external drive assembly includes a connecting rod. The left end of the connecting rod is fixedly connected to the right end of the bidirectional lead screw. The right end of the connecting rod passes through the right side of the housing and is fixedly connected to a hollow cylinder. A locking groove is provided at the top of the outer wall of the hollow cylinder.

[0010] The above technical solution allows the drive tool to be connected via a hollow cylinder, and the engaging slot can engage with the block above the drive tool, thus facilitating the transmission of kinetic energy from the drive tool. When the drive tool rotates, the connecting rod will drive the bidirectional lead screw to rotate, thereby enabling automatic adjustment.

[0011] As a further description of the above technical solution: The guide sealing assembly includes multiple guide plates, the outer walls of which are rotatably connected to the inner walls of the corresponding annular grooves, and sealing sleeves are fixedly connected to the front and rear sides of the outer wall of the shaft drive.

[0012] Through the above technical solution: the rotation of the guide plate will evenly distribute the oil to the transmission contact surface, while the sealing sleeve prevents the lubricating oil from leaking out and blocks impurities.

[0013] As a further description of the above technical solution: The shielding assembly includes two fixing strips, the rear sides of which are fixedly connected to the upper and lower front sides of the housing, respectively, and silicone baffles are fixedly connected to adjacent sides of the two fixing strips.

[0014] The above technical solution involves attaching the silicone baffle to the front of the housing using a fixing strip to form a flexible protection that prevents debris and oil from entering the transmission area during the stamping process.

[0015] As a further description of the above technical solution: An observation window is provided on the rear side of the storage box, and sliding grooves are provided on both the upper and lower sides of the outer wall of the shaft drive. The shaft drive is slidably connected to the inner wall of the outer shell through the sliding grooves.

[0016] The above technical solution allows for viewing the amount of lubricating oil stored through an observation window, while the sliding groove restricts the movement direction of the shaft drive, ensuring stability during adjustment.

[0017] As a further description of the above technical solution: The measuring component includes two indicator plates, the front ends of which are fixedly connected to the rear side of the corresponding shaft drive, and multiple scale lines are provided on the upper middle part of the rear side of the housing.

[0018] Through the above technical solution: the indicator plate moves with the shaft drive and cooperates with the scale line on the back of the corresponding housing to display the shaft distance adjustment value in real time, ensuring precise control of the distance between the two shafts.

[0019] As a further description of the above technical solution: An arc-shaped notch is provided at the center of the rear end of the outer casing, and the bidirectional lead screw is located at the center of the arc-shaped notch.

[0020] The above technical solution involves opening an arc-shaped notch in the middle of the rear end of the housing and placing a bidirectional lead screw inside, which facilitates maintenance and manual adjustment, and also assists in the visual monitoring of wheelbase adjustment, achieving a balance between structural compactness, convenient maintenance, and operational reliability.

[0021] This utility model has the following beneficial effects: 1. In this utility model, an external driving tool can be connected through an external driving component. When the driving tool rotates, it can drive the bidirectional lead screw to rotate. The left and right threads on the outer wall of the bidirectional lead screw drive the two limiting sleeves to move closer or further away synchronously along the axial direction. Since the limiting sleeves are fixed on the inner wall of the shaft drive, the two shaft drive drives can slide left and right on the inner wall of the outer shell to adjust the center distance between the two drive shafts. In addition, the hexagonal block can be driven by a wrench to rotate the bidirectional lead screw for manual fine adjustment, reducing the adjustment time of the punch press and expanding the application range of the punch press.

[0022] 2. In this utility model, lubricating oil is injected into the storage tank through a one-way injection nozzle. During the adjustment process, when the shaft drive slides, the corrugated hose moves accordingly and remains connected. The lubricating oil flows into the annular groove through the connecting groove, while the guide plate rotates to distribute the oil evenly on the transmission contact surface. The sealing sleeve can prevent the lubricating oil from leaking out and block impurities, thereby reducing the frictional loss of the transmission contact surface and ensuring its smooth rotation. Attached Figure Description

[0023] Figure 1 This is a perspective view of a novel transmission structure for a punch press proposed in this utility model; Figure 2 This is a front view of a novel transmission structure for a punch press proposed in this utility model; Figure 3 This is a rear view of a novel transmission structure for a punch press proposed in this utility model. Figure 4 This is a schematic diagram of a shaft drive for a punch press, a novel transmission structure proposed in this utility model. Figure 5 This is a cross-sectional view of a shaft drive for a punch press, a novel transmission structure proposed in this utility model.

[0024] Explanation of reference numerals in the attached figures: 1. Outer shell; 2. Transmission adjustment mechanism; 21. Shaft drive; 22. Limit sleeve; 23. Two-way lead screw; 24. Hexagonal block; 25. External drive assembly; 251. Connecting rod; 252. Hollow cylinder; 253. Engaging groove; 3. Lubrication mechanism; 31. One-way injection nozzle; 32. Storage tank; 33. Corrugated hose; 34. Connecting groove; 35. Annular groove; 36. Guide sealing assembly; 361. Guide plate; 362. Sealing sleeve; 4. Shielding assembly; 41. Fixing strip; 42. Silicone baffle; 5. Observation window; 6. Sliding groove; 7. Measuring assembly; 71. Indicator plate; 72. Scale line. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 3 , Figure 4 and Figure 5 The present invention provides an embodiment of a novel transmission structure for a punch press, comprising a housing 1, a transmission adjustment mechanism 2 provided on the inner wall of the housing 1, a lubrication mechanism 3 provided on the top of the housing 1, the lubrication mechanism 3 being used to ensure lubrication at the transmission point, a shielding component 4 provided on the front side of the housing 1, and a measuring component 7 provided on the rear side of the housing 1. The transmission adjustment mechanism 2 includes two shaft drives 21. The outer walls of the two shaft drives 21 are slidably connected to the upper and lower sides of the inner wall of the outer shell 1, respectively. The inner wall of the shaft drives 21 is fixedly connected to a limit sleeve 22. Because the limit sleeve 22 is fixed to the inner wall of the shaft drives 21, it will drive the two shaft drives 21 to slide left and right on the inner wall of the outer shell 1. The inner walls of the two limit sleeves 22 are threaded with a double-acting screw 23. The left and right turns of the outer wall of the double-acting screw 23 drive the two limit sleeves 22 to move closer or further away from each other axially. A hexagonal block 24 is fixedly connected to the middle of the outer wall of the double-acting screw 23. The hexagonal block 24 can be driven to rotate the double-acting screw 23 by a wrench tool, thereby performing manual fine adjustment. An external drive assembly 25 is provided at the right end of the double-acting screw 23. An arc-shaped notch is opened in the middle of the rear end of the outer shell 1, and the double-acting screw 23 is located in the middle of the arc-shaped notch. The external drive assembly 25 includes a connecting rod 251. The left end of the connecting rod 251 is fixedly connected to the right end of the bidirectional lead screw 23. The right end of the connecting rod 251 passes through the right side of the outer casing 1 and is fixedly connected to a hollow cylinder 252. A locking groove 253 is provided at the top of the outer wall of the hollow cylinder 252, which allows the drive tool to be inserted into the hollow cylinder 252 of the external drive assembly 25. The locking groove 253 is engaged with the locking block above the drive tool, thereby facilitating the transmission of kinetic energy of the drive tool. The connecting rod 251 will drive the bidirectional lead screw 23 to rotate. Specifically, when the punch press needs to adjust the transmission shaft spacing, the hollow cylinder 252 of the external drive assembly 25 can be connected to the drive tool, and the engaging groove 253 can engage with the locking block above the drive tool, thereby facilitating the transmission of kinetic energy of the drive tool. When the drive tool rotates, the connecting rod 251 will drive the bidirectional lead screw 23 to rotate. The left and right threads on the outer wall of the bidirectional lead screw 23 drive the two limiting sleeves 22 to move closer or further away synchronously along the axial direction. Since the limiting sleeves 22 are fixed to the inner wall of the shaft drive 21, the two shaft drive 21 will slide left and right on the inner wall of the outer casing 1, thereby realizing the adjustment of the center distance between the two transmission shafts. The hexagonal block 24 can be used with a wrench to drive the bidirectional lead screw 23 to rotate, thereby performing manual fine adjustment, thereby reducing the adjustment time of the punch press and expanding the application range of the punch press.

[0027] Reference Figure 1 , Figure 4 and Figure 5 The lubrication mechanism 3 includes a one-way injection nozzle 31. The outer wall of the one-way injection nozzle 31 is fixedly connected to the top of the outer shell 1. The bottom end of the one-way injection nozzle 31 penetrates the top of the outer shell 1 and is connected to the storage tank 32. Lubricating oil is injected into the storage tank 32 through the one-way injection nozzle 31. Corrugated hoses 33 are connected to the left and right sides of the rear part of the outer wall of the storage tank 32. When the shaft drive 21 slides, the corrugated hoses 33 move with it and remain connected. A connecting groove 34 is opened on the adjacent side of the outer wall of the two shaft drives 21. The inner wall of the connecting groove 34 is connected to the other end of the corresponding corrugated hose 33. An annular groove 35 is opened on the inner wall of the shaft drive 21. Lubricating oil flows into the annular groove 35 through the connecting groove 34. A guide sealing assembly 36 is provided on the outer wall of the shaft drive 21. The guide sealing assembly 36 includes multiple guide plates 361. The outer walls of the multiple guide plates 361 are rotatably connected to the inner walls of the corresponding annular grooves 35. The front and rear sides of the outer wall of the shaft drive 21 are fixedly connected to sealing sleeves 362. The rotation of the guide plates 361 distributes the oil evenly to the transmission contact surface. The sealing sleeves 362 prevent the lubricating oil from leaking out and block impurities. Specifically, lubricating oil can be injected into the storage tank 32 through the one-way injection nozzle 31. During the adjustment process, when the shaft drive 21 slides, the corrugated hose 33 moves with it and remains connected. The lubricating oil flows into the annular groove 35 through the connecting groove 34. The guide plate 361 rotates to distribute the oil evenly to the transmission contact surface. The sealing sleeve 362 prevents the lubricating oil from leaking out and blocks impurities, thereby reducing the friction loss with the transmission contact surface and ensuring its smooth rotation.

[0028] Reference Figure 1 , Figure 2 and Figure 3The shielding component 4 includes two fixing strips 41, the rear sides of which are fixedly connected to the upper and lower front sides of the outer shell 1, respectively. A silicone baffle 42 is fixedly connected to each adjacent side of the two fixing strips 41. The silicone baffle 42 is attached to the front of the outer shell 1 by the fixing strips 41 to form a flexible protection. An observation window 5 is provided on the rear side of the storage box 32, and the oil level can be viewed through the observation window 5. Sliding grooves 6 are provided on the upper and lower sides of the outer wall of the shaft drive 21. The shaft drive 21 is slidably connected to the inner wall of the outer shell 1 through the sliding grooves 6. The sliding grooves 6 can limit the movement direction of the shaft drive 21. The measuring component 7 includes two indicator plates 71, the front ends of which are fixedly connected to the rear side of the corresponding shaft drive 21, respectively. Multiple scale lines 72 are provided on the upper middle part of the rear side of the outer shell 1. The indicator plates 71 move with the shaft drive 21, and the scale lines 72 on the rear side of the corresponding outer shell 1 can display the wheelbase adjustment value in real time. Specifically, in the shielding assembly 4, the silicone baffle 42 is attached to the front of the housing 1 by the fixing strip 41 to form a flexible protection, preventing debris and oil from entering the transmission area during the stamping process. In the measuring assembly 7, when the transmission shaft spacing is adjusted, the indicator plate 71 moves with the shaft drive 21, and the scale line 72 on the rear side of the housing 1 can display the shaft spacing adjustment value in real time, ensuring precise control of the two shaft spacing. The observation window 5 can be used to check the oil level, and the sliding groove 6 can limit the movement direction of the shaft drive 21 to ensure stability during adjustment.

[0029] Working principle: First, when the punch press is started and the transmission shaft spacing needs to be adjusted, the drive tool can be connected through the hollow cylinder 252 of the external drive assembly 25. At the same time, the locking groove 253 can engage with the locking block above the drive tool to facilitate the transmission of kinetic energy of the drive tool. When the drive tool rotates, the connecting rod 251 will drive the double-acting screw 23 to rotate. The left and right threads on the outer wall of the double-acting screw 23 will drive the two limiting sleeves 22 to move closer or further away from each other axially. Since the limiting sleeves 22 are fixed to the inner wall of the shaft drive 21, they will drive the two shaft drive 21 to slide left and right on the inner wall of the outer shell 1 to adjust the center distance between the two transmission shafts. In addition, the hexagonal block 24 can be driven to rotate the double-acting screw 23 with the help of a wrench tool for manual fine adjustment, thereby reducing the adjustment time of the punch press and expanding the application range of the punch press. Furthermore, through the lubrication mechanism 3, lubricating oil can be injected into the storage tank 32 via the one-way injection nozzle 31. During the adjustment process, when the shaft drive 21 slides, the corrugated hose 33 moves accordingly and maintains a connected state. The lubricating oil flows into the annular groove 35 through the connecting groove 34. The guide plate 361 rotates to evenly distribute the oil to the transmission contact surface. The sealing sleeve 362 can prevent the lubricating oil from leaking out and block impurities, thereby reducing the frictional loss of the transmission contact surface and ensuring its smooth rotation.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new transmission structure for punch press comprising a housing (1), characterized in that: The inner wall of the outer shell (1) is provided with a transmission adjustment mechanism (2), the top of the outer shell (1) is provided with a lubrication mechanism (3), the lubrication mechanism (3) is used to ensure lubrication at the transmission point, the front side of the outer shell (1) is provided with a shielding component (4), and the rear side of the outer shell (1) is provided with a measuring component (7). The transmission adjustment mechanism (2) includes two shaft drives (21). The upper and lower sides of the outer walls of the two shaft drives (21) are slidably connected to the left and right sides of the inner wall of the outer shell (1). The inner wall of the shaft drive (21) is fixedly connected to a limit sleeve (22). The inner walls of the two limit sleeves (22) are threaded with a double-acting screw (23). A hexagonal block (24) is fixedly connected to the middle of the outer wall of the double-acting screw (23). An external drive assembly (25) is provided at the right end of the double-acting screw (23).

2. The novel transmission structure for a punch press according to claim 1, characterized in that: The lubrication mechanism (3) includes a one-way injection nozzle (31), the outer wall of which is fixedly connected to the top of the outer shell (1). The bottom end of the one-way injection nozzle (31) passes through the top of the outer shell (1) and is connected to a storage box (32). The left and right sides of the rear part of the outer wall of the storage box (32) are connected to corrugated hoses (33). The outer walls of the two shaft drives (21) are provided with connecting grooves (34) on adjacent sides. The inner walls of the connecting grooves (34) are respectively connected to the other end of the corresponding corrugated hoses (33). The inner wall of the shaft drive (21) is provided with an annular groove (35). The outer wall of the shaft drive (21) is provided with a guide sealing assembly (36).

3. A novel transmission structure for a punch press according to claim 1, characterized in that: The external drive assembly (25) includes a connecting rod (251), the left end of which is fixedly connected to the right end of the bidirectional lead screw (23), the right end of which passes through the right side of the outer shell (1) and is fixedly connected to a hollow cylinder (252), and the top of the outer wall of the hollow cylinder (252) is provided with a locking groove (253).

4. A novel transmission structure for a punch press according to claim 2, characterized in that: The guide sealing assembly (36) includes multiple guide plates (361), the outer walls of the multiple guide plates (361) are rotatably connected to the inner walls of the corresponding annular groove (35), and the front and rear sides of the outer wall of the shaft drive (21) are fixedly connected with sealing sleeves (362).

5. A novel transmission structure for a punch press according to claim 1, characterized in that: The shielding assembly (4) includes two fixing strips (41), the rear sides of the two fixing strips (41) are respectively fixedly connected to the upper and lower front sides of the outer shell (1), and silicone baffles (42) are fixedly connected to the adjacent sides of the two fixing strips (41).

6. A novel transmission structure for a punch press according to claim 2, characterized in that: The storage box (32) has an observation window (5) on its rear side. The shaft drive (21) has sliding grooves (6) on both the upper and lower sides of its outer wall. The shaft drive (21) is slidably connected to the inner wall of the outer shell (1) through the sliding grooves (6).

7. A novel transmission structure for a punch press according to claim 1, characterized in that: The measuring component (7) includes two indicator plates (71), the front ends of the two indicator plates (71) are respectively fixedly connected to the rear side of the corresponding shaft drive (21), and multiple scale lines (72) are opened in the upper middle part of the rear side of the housing (1).

8. A novel transmission structure for a punch press according to claim 1, characterized in that: The rear end middle part of the shell (1) is provided with an arc-shaped recess, and the bidirectional screw rod (23) is located in the middle part of the arc-shaped recess.

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