阅读说明：本技术 一种改进的高速冲床 (Improved high-speed punch ) 是由 彭胜标 彭建科 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种改进的高速冲床,高速冲床呈三段式设计,上段区设置有头座和曲轴驱动机构,中段区设置有中座以及滑块,下段区设置有脚座以及工作台,滑块的下部安装有上模组,工作台的顶部安装有下模组,曲轴驱动机构的下部偏心安装有至少三组并排平行设置的滑块连杆组件,曲轴驱动机构的上部偏心安装有动平衡机构,曲轴驱动机构经由三个滑块连杆组件联动驱动滑块相对工作台上下移动,所述头座的内部还设置有模高调节机构,模高调节机构联动传动连接于三个滑块连杆组件,各个滑块连杆组件内均设置有液压油锁模结构。本发明确保冲床运转精密与稳定,降低设备磨损,减少设备维修成本,同时简化了部件的加工工艺,节省生产成本。(The invention discloses an improved high-speed punch, which is designed in a three-section mode, wherein a head seat and a crankshaft driving mechanism are arranged in an upper section area, a middle seat and a sliding block are arranged in a middle section area, a foot seat and a workbench are arranged in a lower section area, an upper module is arranged at the lower part of the sliding block, a lower module is arranged at the top of the workbench, at least three groups of sliding block connecting rod assemblies which are arranged in parallel side by side are eccentrically arranged at the lower part of the crankshaft driving mechanism, a dynamic balancing mechanism is eccentrically arranged at the upper part of the crankshaft driving mechanism, the crankshaft driving mechanism drives the sliding block to move up and down relative to the workbench in a linkage mode through the three sliding block connecting rod assemblies, a die height adjusting mechanism is further arranged in the head seat, the die height adjusting mechanism. The invention ensures the precision and stability of the operation of the punch, reduces the abrasion of equipment, reduces the maintenance cost of the equipment, simplifies the processing technology of parts and saves the production cost.)

1. An improved high speed punch press, characterized in that: the high-speed punching machine is designed in a three-section mode, a headstock (1) and a crankshaft driving mechanism (10) rotatably installed on the headstock (1) are arranged in an upper section area, a middle seat (2) and a sliding block (20) slidably installed on the middle seat (2) are arranged in a middle section area, a foot seat (3) and a workbench (30) installed on the foot seat (3) are arranged in a lower section area, an upper module (200) is installed on the lower portion of the sliding block (20), a lower module (300) is installed on the top of the workbench (30), the upper module (200) and the lower module (300) are vertically arranged in an up-down matching mode, at least three groups of sliding block connecting rod assemblies (11) which are arranged in parallel side by side are eccentrically installed on the lower portion of the crankshaft driving mechanism (10), a dynamic balancing mechanism (12) is eccentrically installed on the upper portion of the crankshaft driving mechanism (10), the eccentric directions of the three sliding block connecting rod assemblies (11) are kept consistent, the crankshaft driving mechanism (10) drives the sliding blocks (20) to move up and down relative to the workbench (30) in a linkage mode through the three sliding block connecting rod assemblies (11), a die height adjusting mechanism (13) used for adjusting the die height is further arranged inside the head base (1), the die height adjusting mechanism (13) is connected to the three sliding block connecting rod assemblies (11) in a linkage transmission mode, and a hydraulic oil die locking structure (14) is arranged in each sliding block connecting rod assembly (11).

2. An improved high speed press according to claim 1, wherein: the dynamic balancing mechanism (12) is provided with a balancing weight (120) and at least two balancing weight connecting rod assemblies (121) which are respectively installed at two ends of the balancing weight (120) in a transmission mode, balancing parts which are I-shaped are symmetrically formed at the left end and the right end of the balancing weight (120) respectively, a pair of guide holes (122) which are symmetrically formed in the front and back direction are formed in the middle of the balancing weight (120), guide rods (123) are installed in the guide holes (122), the middle of the balancing weight (120) is installed on a headstock (1) through the guide rods (123) in a sliding mode, and two ends of the balancing weight (120) are respectively connected to the crankshaft driving mechanism (10) through the corresponding balancing weight.

3. An improved high speed press according to claim 1, wherein: the crankshaft driving mechanism (10) is provided with a crankshaft (100) and a motor assembly for driving the crankshaft (100) to rotate, the left end and the right end of the crankshaft (100) are respectively machined and formed with a sliding block eccentric section (1000) which is symmetrically arranged, the left end and the right end of the crankshaft (100) are respectively machined and formed with a connecting rod eccentric section (1001) which is symmetrically arranged, and the middle part of the crankshaft (100) is machined and formed with a sliding block eccentric arm (1002).

4. An improved high speed press according to claim 1, wherein: each slider connecting rod assembly (11) is provided with a connecting rod body (110) rotatably mounted on the crankshaft driving mechanism (10), a connecting rod ball head (111) fixedly mounted at the lower part of the connecting body, a connecting rod sleeve (112) tightly sleeved on the outer side of the connecting rod ball head (111), a heightening screw (113) fixedly connected to the connecting rod sleeve (112) and a connecting rod guide pillar (114) arranged on the outer side of the heightening screw (113), the outer wall of the heightening screw (113) is in threaded fit with the inner wall of the connecting rod guide pillar (114), guide pillar mounting plates (115) are fixedly arranged at positions, corresponding to the three slider connecting rod assemblies (11), of the top of each slider (20), and the lower part of the connecting rod guide pillar (114) is fixedly connected with.

5. An improved high speed press according to claim 4, wherein: the die height adjusting mechanism (13) is provided with a die adjusting motor (130) and three groups of die adjusting assemblies (131) arranged in parallel side by side, each die adjusting assembly (131) corresponds to each slider-link assembly (11) one by one, each die adjusting assembly (131) is provided with a worm (132) and a turbine (133), the worm (132) of at least one die adjusting assembly (131) is in transmission connection with the die adjusting motor (130), a connecting rod sleeve (112) is embedded in the inner side of the turbine (133), the outer wall of the height adjusting screw (113) is provided with an external thread, the inner wall of the connecting rod guide post (114) is provided with an internal thread, the height adjusting screw (113) is inserted in the internal thread of the connecting rod guide post (114) through the external thread, and the corresponding connecting rod guide post (114) and the corresponding height adjusting screw (113) rotate relatively at least when the worm (132) drives the corresponding turbine (133) to rotate.

6. An improved high speed press according to claim 4, wherein: the mold locking structure comprises an oil inlet hole (140) formed in one side of the guide post mounting plate (115) and an oil inlet channel (141) formed in the lower part of the connecting rod guide post (114), wherein one end of the oil inlet channel (141) is communicated with the lower inner cavity of the connecting rod guide post (114), and the other end of the oil inlet channel is communicated with the oil inlet hole (140).

7. An improved high speed press according to claim 4, wherein: the upper section area is also provided with a clutch brake mechanism (15), the clutch brake mechanism (15) comprises a clutch component (150), a brake component (151) and an electromagnetic valve, the clutch component (150) is provided with a clutch friction plate which is in transmission connection with the motor component, a flywheel which is rotatably arranged on the crank shaft (100) and a clutch piston cylinder which is in driving connection with the clutch friction plate, the brake component (151) is provided with a brake friction plate which is in rotation connection with the crank shaft (100), a brake base which is fixedly arranged on the head base (1) and a brake piston cylinder which is in driving connection with the brake friction plate, a first switch of the electromagnetic valve is electrically connected with the clutch piston, a second switch of the electromagnetic valve is electrically connected with the brake piston cylinder, at, the clutch piston cylinder drives the clutch friction plate to contact with the flywheel to be locked and rotate, and the brake piston cylinder drives the brake friction plate to be locked and braked with the brake seat at least when the second switch is electrified and conducted.

8. An improved high speed press according to claim 1, wherein: four corners of the middle seat (2) are respectively provided with a longitudinally extending slider linear guide post (21), four corners of the slider (20) are respectively formed with cylindrical guide cylinders (201), the inner wall of each cylindrical guide cylinder (201) is embedded with a steel ball retainer (202), and a ball bearing is arranged between each steel ball retainer (202) and the corresponding slider linear guide post (21).

Technical Field

The invention relates to the technical field of punching machines, in particular to an improved high-speed punching machine.

Background

The punching machine mainly depends on a crankshaft to drive a connecting rod to rotate and reciprocate so as to drive a sliding block and an upper die set to do lifting and reciprocating motion. The existing punching machine has low precision due to unreasonable structural design, and unstable operation of the sliding block affects the punching precision of the die and increases the abrasion degree of the parts, so that the improvement is necessary.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an improved high-speed punch press, which greatly improves the running stability of the punch press.

In order to achieve the purpose, the invention adopts the technical scheme that: an improved high-speed punch press is designed in a three-section mode, an upper section area is provided with a headstock and a crankshaft driving mechanism rotatably mounted on the headstock, a middle section area is provided with a middle seat and a sliding block slidably mounted on the middle seat, a lower section area is provided with a foot seat and a workbench mounted on the foot seat, the lower part of the sliding block is provided with an upper die set, the top of the workbench is provided with a lower die set, the upper die set and the lower die set are arranged in an up-and-down involution mode, the lower part of the crankshaft driving mechanism is eccentrically provided with at least three groups of sliding block connecting rod assemblies which are arranged in parallel side by side, the upper part of the crankshaft driving mechanism is eccentrically provided with a dynamic balancing mechanism, the eccentric directions of the three sliding block connecting rod assemblies are kept consistent, the eccentric directions of the dynamic balancing mechanism and the sliding block connecting rod assemblies are opposite to the crankshaft driving mechanism, the crankshaft, the die height adjusting mechanism is connected to the three sliding block connecting rod assemblies in a linkage transmission mode, and a hydraulic oil die locking structure is arranged in each sliding block connecting rod assembly.

In a further technical scheme, the dynamic balancing mechanism is provided with a balancing weight and at least two balancing weight connecting rod assemblies which are respectively installed at two ends of the balancing weight in a transmission mode, I-shaped balancing parts are symmetrically formed at the left end and the right end of the balancing weight respectively, a pair of guide holes which are symmetrically arranged front and back are formed in the middle of the balancing weight, a guide rod is installed in each guide hole, the middle of the balancing weight is installed on a head seat through the guide rods in a sliding mode, and two ends of the balancing weight are respectively connected to the crankshaft driving mechanism through the corresponding balancing weight connecting rod.

In a further technical scheme, the crankshaft driving mechanism is provided with a crankshaft and a motor assembly for driving the crankshaft to rotate, the left end and the right end of the crankshaft are respectively machined and formed with a sliding block eccentric section which is symmetrically arranged, the left end and the right end of the crankshaft are respectively machined and formed with a connecting rod eccentric section which is symmetrically arranged, and the middle part of the crankshaft is machined and formed with a sliding block eccentric arm.

In a further technical scheme, each of the slider-link assemblies is provided with a connecting rod body rotatably mounted on the crankshaft driving mechanism, a connecting rod ball fixedly mounted at the lower part of the connecting body, a connecting rod sleeve tightly sleeved outside the connecting rod ball, a heightening screw fixedly connected to the connecting rod sleeve and a connecting rod guide pillar arranged outside the heightening screw, the outer wall of the heightening screw is in threaded fit with the inner wall of the connecting rod guide pillar, guide pillar mounting plates are respectively fixedly arranged at positions of the tops of the sliders corresponding to the three slider-link assemblies, and the lower part of the connecting rod guide pillar is fixedly connected with the guide pillar mounting plates.

In a further technical scheme, the die height adjusting mechanism is provided with a die adjusting motor and three groups of die adjusting components arranged in parallel side by side, each die adjusting component corresponds to each slider and connecting rod component one to one, each die adjusting component is provided with a worm and a turbine, at least one worm of each die adjusting component is connected to the die adjusting motor in a transmission manner, a connecting rod sleeve is embedded in the inner side of the turbine, external threads are formed in the outer wall of a height adjusting screw rod, internal threads are formed in the inner wall of a connecting rod guide pillar, the height adjusting screw rod is inserted into the internal threads of the connecting rod guide pillar through the external threads, and the corresponding connecting rod guide pillar and the corresponding height adjusting screw rod rotate relatively when the worm drives the corresponding turbine to rotate at least.

In a further technical scheme, an upper inner cavity and a lower inner cavity communicated with the upper inner cavity are formed in the middle of the connecting rod guide pillar, the heightening screw is accommodated in the upper inner cavity of the connecting rod guide pillar, a connecting rod guide pillar piston is arranged in the lower inner cavity of the connecting rod guide pillar, the upper portion of the connecting rod guide pillar piston is fixedly connected to the lower portion of the heightening screw, the lower portion of the connecting rod guide pillar piston is fixedly installed on the guide pillar mounting plate so as to seal the lower inner cavity of the connecting rod guide pillar, the mold locking structure comprises an oil inlet formed in one side of the guide pillar mounting plate and an oil inlet channel formed in the lower portion of the connecting rod guide pillar, one end.

In a further technical scheme, the upper section area is further provided with a clutch brake mechanism, the clutch brake mechanism comprises a clutch assembly, a brake assembly and an electromagnetic valve, the clutch assembly is provided with a clutch friction plate in transmission connection with the motor assembly, a flywheel rotatably mounted on the crank shaft and a clutch piston cylinder in driving connection with the clutch friction plate, the brake assembly is provided with a brake friction plate in rotation connection with the crank shaft, a brake seat fixedly mounted on the head seat and a brake piston cylinder in driving connection with the brake friction plate, a first switch of the electromagnetic valve is electrically connected with the clutch piston, a second switch is electrically connected with the cylinder brake piston cylinder, at least when the first switch is powered on, the clutch piston cylinder drives the clutch friction plate to be in contact with the flywheel to be locked and rotated, and at least when the second switch is powered on, the brake piston cylinder drives the.

In a further technical scheme, four corners of the middle seat are respectively provided with a longitudinally extending slider linear guide post, cylindrical guide cylinders are respectively formed at the four corners of the slider, a steel ball retainer is embedded in the inner wall of each cylindrical guide cylinder, and a ball bearing is arranged between each steel ball retainer and the corresponding slider linear guide post.

After adopting the structure, compared with the prior art, the invention has the advantages that:

the invention increases a dynamic balance mechanism to offset inertia, eliminates the vibration of a punch in the high-speed operation process, ensures that the stress of a crankshaft driving mechanism is more balanced, improves the stability of equipment and prolongs the service life of the equipment, adjusts the distance between an upper die set and a lower die set during punching through a die height adjusting mechanism so as to adapt to different types of punching dies, and is linked with and lifts a sliding block through a sliding block connecting rod assembly which is arranged in parallel side by side to ensure that the upper punching and the lower punching of the sliding block are more stable, ensures the precision and the stability of the operation of the punch through a hydraulic oil die locking structure, reduces the abrasion of the equipment, and simultaneously only needs to extrude high-pressure oil in a lower inner cavity when the die is released, does.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a crankshaft drive mechanism, a slider link assembly, and a clutched brake mechanism;

FIG. 3 is a schematic structural view of a crankshaft drive mechanism, a slider link assembly, and a dynamic balance mechanism;

FIG. 4 is a schematic structural view of a crankshaft;

FIG. 5 is a schematic structural view of a crankshaft drive mechanism, a slide link assembly, and a die height adjustment mechanism;

FIG. 6 is a schematic cross-sectional view of the crankshaft drive mechanism, the slide link assembly, and the die height adjustment mechanism;

FIG. 7 is a schematic cross-sectional view of the crankshaft drive mechanism, the slide link assembly, and the mold clamping structure;

FIG. 8 is an enlarged schematic view of the structure at A in FIG. 7;

FIG. 9 is a schematic view of the structural mounting of the slider and the center base;

fig. 10 is a schematic view of the structure of the slider.

Detailed Description

The following are merely preferred embodiments of the present invention, and do not limit the scope of the present invention.

As shown in fig. 1 to 10, the improved high speed punching machine provided by the present invention is of a three-stage design, the upper stage region is provided with a headstock 1 and a crankshaft driving mechanism 10 rotatably mounted on the headstock 1, the middle stage region is provided with a middle seat 2 and a sliding block 20 slidably mounted on the middle seat 2, the lower stage region is provided with a foot seat 3 and a workbench 30 mounted on the foot seat 3, the lower part of the sliding block 20 is provided with an upper module 200, the top of the workbench 30 is provided with a lower module 300, the upper module 200 and the lower module 300 are vertically arranged in an up-down matching manner, the lower part of the crankshaft driving mechanism 10 is eccentrically provided with at least three sets of sliding block connecting rod assemblies 11 arranged in parallel side by side, the upper part of the crankshaft driving mechanism 10 is eccentrically provided with a dynamic balancing mechanism 12, the eccentric directions of the three sliding block connecting rod assemblies 11 are kept consistent, the eccentric directions of, the crankshaft driving mechanism 10 drives the sliding block 20 to move up and down relative to the workbench 30 in a linkage mode through the three sliding block connecting rod assemblies 11, a die height adjusting mechanism 13 used for adjusting the die height is further arranged inside the head base 1, the die height adjusting mechanism 13 is connected to the three sliding block connecting rod assemblies 11 in a linkage mode, and a hydraulic oil die locking structure 14 is arranged in each sliding block connecting rod assembly 11. The invention adds the dynamic balance mechanism 12 to offset inertia, eliminates the vibration of the punch in the high-speed operation process, ensures that the stress of the crankshaft driving mechanism is more balanced, improves the stability of the equipment and prolongs the service life of the equipment, adjusts the distance between the upper die set 200 and the lower die set 300 during punching through the die height adjusting mechanism 13 so as to adapt to different types of punching dies, and ensures that the upper punching and the lower punching of the slide block 20 are more stable through the linkage of the slide block connecting rod assemblies 11 which are arranged side by side in parallel, ensures that the operation of the punch is precise and stable through the hydraulic oil die locking structure 14, reduces the abrasion of the equipment, and simultaneously only needs to extrude high-pressure oil in the lower inner cavity when the die is released, does not need to disassemble other parts, and.

In a further technical scheme, the dynamic balance mechanism 12 is provided with a counterweight 120 and at least two counterweight connecting rod assemblies 121 which are respectively installed at two ends of the counterweight 120 in a transmission manner, balancing parts which are in an i shape are respectively symmetrically formed at the left end and the right end of the counterweight 120, a pair of guide holes 122 which are symmetrically arranged front and back are formed in the middle of the counterweight 120, a guide rod 123 is installed in each guide hole 122, the middle of the counterweight 120 is slidably installed on the headstock 1 through the guide rod 123, two ends of the counterweight 120 are respectively connected to the crankshaft driving mechanism 10 through the corresponding counterweight connecting rod assemblies 121 in an eccentric transmission manner, the symmetrical mechanism is more stable than the conventional single connecting rod structure, the stress of the crankshaft driving mechanism 10 is more balanced, in addition, the guide rod 123 plays a guide role in guiding the counterweight.

In a preferred embodiment, the crankshaft driving mechanism 10 is provided with a crankshaft 100 and a motor assembly for driving the crankshaft 100 to rotate, wherein the left and right ends of the crankshaft 100 are respectively formed with a slider eccentric section 1000 symmetrically arranged, the left and right ends of the crankshaft 100 are respectively formed with a connecting rod eccentric section 1001 symmetrically arranged, the middle of the crankshaft 100 is formed with a slider eccentric arm 1002, and the crankshaft 100 is integrally formed by eccentric machining.

In a further technical scheme, each of the slider link assemblies 11 is provided with a link body 110 rotatably mounted on the crankshaft driving mechanism 10, a link ball 111 fixedly mounted on a lower portion of the link body, a link sleeve 112 tightly sleeved on an outer side of the link ball 111, a height-adjusting screw 113 fixedly connected to the link sleeve 112, and a link guide pillar 114 arranged on an outer side of the height-adjusting screw 113, an outer wall of the height-adjusting screw 113 is in threaded fit with an inner wall of the link guide pillar 114, guide pillar mounting plates 115 are respectively fixedly arranged at positions of tops of the sliders 20 corresponding to the three slider link assemblies 11, and lower portions of the link guide pillars 114 are fixedly connected with the guide pillar mounting plates 115. The invention adopts a spherical connecting rod structure, the stress of the sliding block 20 is more uniform during stamping, and the spherical structure can eliminate the problem of the concentricity of the connecting rod production process and reduce the processing error of the connecting rod; secondly, the connecting rod body 110 and the connecting rod ball 111 of the connecting rod structure adopt a split structure, so that later-stage abrasion maintenance and replacement of equipment are facilitated.

In a further technical solution, the mold height adjusting mechanism 13 is provided with a mold adjusting motor 130 and three sets of mold adjusting assemblies 131 arranged in parallel side by side, each mold adjusting assembly 131 corresponds to each slider link assembly 11 one by one, each mold adjusting assembly 131 is provided with a worm 132 and a worm wheel 133, at least one worm 132 of each mold adjusting assembly 131 is in transmission connection with the mold adjusting motor 130, the connecting rod sleeve 112 is embedded inside the worm wheel 133, the outer wall of the heightening screw 113 is provided with an external thread, the inner wall of the connecting rod guide pillar 114 is provided with an internal thread, the heightening screw 113 is inserted into the internal thread of the connecting rod guide pillar 114 through the external thread, and at least when the worm 132 drives the corresponding worm wheel 133 to rotate, the corresponding connecting rod guide pillar 114 and the corresponding heightening screw 113 rotate relatively.

In a further technical scheme, an upper inner cavity and a lower inner cavity communicated with the upper inner cavity are formed in the middle of the connecting rod guide pillar 114, the heightening screw 113 is accommodated in the upper inner cavity of the connecting rod guide pillar 114, a connecting rod guide pillar piston 116 is arranged in the lower inner cavity of the connecting rod guide pillar 114, the upper portion of the connecting rod guide pillar piston 116 is fixedly connected to the lower portion of the heightening screw 113, and the lower portion of the connecting rod guide pillar piston 116 is fixedly mounted on the guide pillar mounting plate 115 to seal the lower inner cavity of the connecting rod guide pillar 114, the mold locking structure comprises an oil inlet hole 140 formed in one side of the guide pillar mounting plate 115 and an oil inlet channel 141 formed in the lower portion of the connecting rod guide pillar 114, one end of the. In practical application, workshop personnel can adjust the die height of the punch press through the threaded matching of the heightening screw 113 and the connecting rod guide post 114, after the die height is adjusted, high-pressure liquid oil is injected into the oil inlet hole 140, the high-pressure liquid oil is filled in the lower inner cavity of the connecting rod guide post 113 through the oil inlet channel 141, a gap between the heightening screw 113 and the threads of the connecting rod guide post 113 is tightened, the precision and stability of the operation of the punch press are ensured, the abrasion of equipment is reduced, meanwhile, when the die is released, only the high-pressure oil in the lower inner cavity needs to be extruded, other parts do not need to be disassembled, and the maintenance.

In a more specific technical scheme, the upper section area is further provided with a clutch brake mechanism 15, the clutch brake mechanism 15 comprises a clutch assembly 150, a brake assembly 151 and an electromagnetic valve, the clutch assembly 150 is provided with a clutch friction plate which is in transmission connection with the motor assembly, a flywheel which is rotatably installed on the crank shaft 100 and a clutch piston cylinder which is in driving connection with the clutch friction plate, the brake assembly 151 is provided with a brake friction plate which is rotatably connected with the crank shaft 100, a brake base which is fixedly installed on the head base 1 and a brake piston cylinder which is in driving connection with the brake friction plate, a first switch of the electromagnetic valve is electrically connected with the clutch piston, a second switch of the electromagnetic valve is electrically connected with the brake piston cylinder, at least, the clutch piston cylinder drives the clutch friction plate to contact with the flywheel to be locked and rotate, and the brake piston cylinder drives the brake friction plate to be locked and braked with the brake seat at least when the second switch is electrified and conducted. Separation and reunion brake mechanism can make the punch press stop immediately under emergency, avoids dangerous the appearance, and dynamic balance mechanism and separation and reunion brake mechanism all set up in the headstock for the structure is compacter, and space installation high-usage, and separation and reunion brake mechanism's clutch subassembly 150 and brake subassembly 151 adopt split type symmetry to set up, can make 100 both ends of crank axle brake simultaneously, and it is more even to make the lathe bed accept, avoids local impact force in the twinkling of an eye too big, improves punch press operating stability.

In a further technical scheme, four corners of the middle seat 2 are respectively provided with a longitudinally extending slider linear guide post 21, four corners of the slider 20 are respectively formed with cylindrical guide cylinders 201, the inner wall of each cylindrical guide cylinder 201 is embedded with a steel ball retainer 202, and a ball bearing is arranged between each steel ball retainer 202 and the corresponding slider linear guide post 21. The invention adopts the structure that the steel ball retainer 2021 is matched with the ball bearing, and compared with other guide bearings, the production cost is greatly reduced, and the relative bearing clearance between the ball and the slider linear guide post 21 is very small, so that the operation of the punch press is more stable.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.