Press machine with pressure head convenient to replace

Abstract

The utility model discloses a press machine with a pressing head convenient to replace, and relates to the technical field of press machines. A fixed plate is fixedly mounted at the top of the base through a pair of fixed rods, a screw rod is in threaded connection with the interior of the fixed plate on the inner sides of the pair of fixed rods, the bottom of the screw rod extends out of the interior of the fixed plate and is rotationally connected with a movable plate through a bearing, and the top of the screw rod extends out of the interior of the fixed plate and is fixedly provided with a hand wheel; the pair of fixing rods penetrate through the interior of the movable plate, a first pressing head is arranged at the bottom of the movable plate in an attached mode, and pulling plates are arranged at the two ends of the movable plate. By pulling the pulling plate, the clamping block can be separated from the interior of the second pressing head, then the first pressing head can be detached conveniently, the second pressing head is installed at the bottom of the movable plate, the clamping block is clamped into the second pressing head through the spring, the pressing heads can be replaced conveniently, different workpieces can be machined conveniently, and the machining efficiency is improved. And the application range of the device is expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to a press machine technical field, concretely relates to a press machine convenient to replace pressure head. BACKGROUND

[0002] The hand press machine belongs to part of the press machine, and it is a kind of mechanical equipment widely used in product assembly, maintenance and other industries, and can be widely applied to cutting, punching, blanking, bending, riveting and forming processes in electronic, instrument, camera, watch and other light industry, small hardware industry and clothing industry.

[0003] In daily work, workers place materials on the hand press machine, control the hand press machine, so that the hand press machine processes the materials, but the workers need to unload the processed parts by hand after processing the materials, which reduces the work efficiency of the workers.

[0004] The prior art discloses a hand press machine, which comprises a base, a processor and a discharging device, the processor is slidably connected with the surface of the base, the discharging device is arranged on the surface of the base, the discharging device comprises a guide groove, the guide groove is arranged on the surface of the base, the guide groove is located below the processor, the surface of the guide groove is fixedly connected with a supporting block, the supporting block is located below the processor, the surface of the supporting block is slidably connected with a push block, the push block is in contact with the surface of the guide groove, the surface of the push block is fixedly connected with a pushing block, and the pushing block is in contact with the surface of the guide groove. The utility model discloses a discharging device, which effectively discharges materials when the hand press machine is used, pushes the handle, avoids the low working efficiency of the hand press machine, improves the practicability of the hand press machine, improves the auxiliary nature of the hand press machine, and improves the discharging nature of the hand press machine. However, the size of the pressure head of the above-mentioned hand press machine is fixed, so that only the workpieces within a certain range can be processed, thereby limiting the processing range. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of press machine convenient to replace pressure head to solve the problem that the size of the pressure head of hand press machine in background art is fixed, and only the workpieces within a certain range can be processed, thereby limiting the processing range.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a press machine convenient to change pressure head, including base, the top of base is fixedly installed with fixed plate through a pair of fixed link, the inside fixed plate of a pair of fixed link is screw thread connection has screw rod, the bottom of screw rod extends the inside of fixed plate and is rotatably connected with movable plate through bearing, the top of screw rod extends the inside of fixed plate and is fixedly installed with hand wheel, a pair of fixed link all through the inside of movable plate, the bottom of movable plate is pasted with first pressure head, both ends of movable plate all are provided with pull plate, the inner end of each pull plate all is fixedly installed with a plurality of springs, the inner end surface of each spring all is fixedly connected with movable plate surface, the inner end surface of each pull plate inside each spring all is fixedly installed with telescopic rod, the inner end of each telescopic rod all is fixedly connected with movable plate surface, the inner end surface of each pull plate of movable plate bottom all is fixedly installed with a plurality of clamping blocks, and each clamping block is mutually engaged with the inside of first pressure head, the bottom of base is fixedly installed with placing rack, and the top of placing rack is placed with second pressure head, and both sides of the inside of second pressure head are provided with the clamping groove matched with the shape of each clamping block, the top of first pressure head is fixedly installed with a plurality of limiting posts, and the bottom of movable plate is provided with a plurality of limiting slots, and each limiting post is mutually engaged with the inside of each limiting slot, and the top of second pressure head is fixedly connected with a plurality of fixed columns, and the shape and size of each fixed column are same with each limiting post.

[0008] The size of the pressure head of the manual press machine in the background art is fixed, so that the press machine can only process workpieces within a certain range, thereby limiting the processing range. In the present application, the inward pulling force of the pull plate can be generated by the elastic force of the spring, so that the clamping block is clamped into the inside of the first pressure head, thereby achieving the installation and processing of the first pressure head. By pulling the pull plate outward, the clamping block can be separated from the inside of the first pressure head, thereby facilitating the removal of the first pressure head from the bottom for disassembly and processing. By moving the second pressure head to the bottom of the movable plate and using the spring to pull the pull plate, the clamping block can be clamped into the inside of the second pressure head, thereby achieving the replacement of the pressure head for processing different workpieces and expanding the application range of the device. By arranging the limiting posts and the limiting slots, the position of the first pressure head on the bottom of the movable plate can be further limited by clamping the limiting post into the inside of the limiting slot, so as to ensure that the first pressure head is moved to the middle position of the bottom of the movable plate, thereby facilitating the subsequent use of the first pressure head. By arranging the fixed columns, the position of the second pressure head on the bottom of the movable plate can be further limited by clamping the fixed column into the inside of the limiting slot, so as to ensure that the second pressure head is moved to the middle position of the bottom of the movable plate, thereby facilitating the subsequent use of the second pressure head.

[0009] The further improvement of the technical scheme of the utility model is that the opening of the bottom surface of each limiting slot is larger than the cross-sectional area of the top surface of each limiting post.

[0010] The technical scheme is characterized in that the opening of the bottom surface of the limiting groove is larger than the sectional area of the top surface of the limiting column, so that the limiting column can be conveniently clamped into the limiting groove, thereby improving work efficiency.

[0011] The technical scheme is further improved in that the bottom surface of each clamping block is provided with an inwardly inclined inclined surface.

[0012] The technical scheme is characterized in that the inclined surface is arranged on the bottom of the clamping block, so that the first and second pressing heads can extrude the clamping block to move to the state of being attached to the bottom surface of the movable plate, thereby improving work efficiency.

[0013] The technical scheme is further improved in that the first pressing head on the outer side of the clamping block is internally slidably provided with a stopper, and the inner side surface of each stopper is attached to the surface of each clamping block.

[0014] The technical scheme is characterized in that after the operator pulls the pull plate to one end or the other end, if the pull plate is then released, the clamping block will again be clamped into the interior of the first pressing head, so that the operator must pull the pull plates at both ends to disassemble the first pressing head, but at this time the operator cannot free his hands to hold the first pressing head, and the first pressing head is prone to falling to the bottom and being damaged.

[0015] The technical scheme is further improved in that the top and bottom of the stopper are fixedly provided with a sliding block, the interior of the first pressing head on the periphery of each sliding block is provided with a sliding groove, and each sliding block is slidably connected to each sliding groove.

[0016] The technical scheme is characterized in that the sliding block can guide and limit the sliding track of the stopper in the interior of the first pressing head, prevent the stopper from being separated from the interior of the first pressing head, and ensure the integrity of the device.

[0017] The technical scheme is further improved in that the interior of the second pressing head on the outer side of each clamping groove is slidably provided with a partition, the top and bottom of each partition are fixedly provided with a movable block, the interior of the second pressing head on the periphery of each movable block is provided with a movable groove, and each movable block is slidably connected to each movable groove.

[0018] According to the technical scheme, after the operator pulls the pull plate at one end or the other end, if the operator then releases the pull plate, the clamping block will be clamped into the interior of the second pressing head again, so that the operator can pull the pull plates at both ends to dismount the second pressing head, but the operator cannot hold the second pressing head at this time, and the second pressing head is prone to falling to the bottom and being damaged. In the application, after the operator pulls the pull plate at one end or the other end, the operator can push the partition plate at the specified position to the inside, so that the partition plate is clamped into the position at the inner end of the clamping block, thereby preventing the clamping block from being clamped into the interior of the second pressing head again, so that the operator can hold the bottom of the second pressing head, thereby providing convenience for the operator to dismount the second pressing head.

[0019] Further improvement of the technical scheme of the utility model lies in that the surface of the outer end of each pull plate is fixedly installed with a pull rod.

[0020] According to the technical scheme, the installation of the pull rod can expand the contact area between the hands of the operator and the pull plate, so as to facilitate the movement of the pull plate.

[0021] Due to the adoption of the technical scheme, the utility model has the following technical progress compared with the prior art:

[0022] 1. The utility model provides a press machine convenient for replacing a pressing head, according to actual workpiece machining requirements, the clamping block is separated from the interior of the first pressing head or the second pressing head by pulling the pull plate at the outer end, then the clamping block is clamped into the interior of the second pressing head or the first pressing head again by the elastic force of the spring, and the position of the first pressing head at the bottom of the movable plate is further limited by clamping the fixed column or the limiting column into the limiting slot, so that the first pressing head is moved to the middle position at the bottom of the movable plate, the second pressing head or the first pressing head is installed, the pressing head is replaced, and the application range of the device is expanded.

[0023] 2. The utility model provides a press machine convenient for replacing a pressing head, after pulling the pull plate at one end or the other end, the clamping block is blocked by pushing the stop block to the inside, so that the clamping block is prevented from being clamped into the interior of the first pressing head again, thereby the operator can hold the bottom of the first pressing head, thereby providing convenience for the operator to dismount the first pressing head.

[0024] 3. The utility model provides a press machine convenient for replacing a pressing head, after pulling the pull plate at one end or the other end, the clamping block is blocked by pushing the partition plate to the inside, so that the clamping block is prevented from being clamped into the interior of the second pressing head again, thereby the operator can hold the bottom of the second pressing head, thereby providing convenience for the operator to dismount the second pressing head. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model is further described below with reference to the drawings.

[0026] Figure 1 It is the perspective view of the utility model;

[0027] Figure 2 It is the perspective view of the spring second form of the utility model;

[0028] Figure 3 It is the perspective view of the whole second visual angle of the utility model;

[0029] Figure 4 It is the movable plate section local structure schematic view of the utility model;

[0030] Figure 5 It is the movable plate section local explosion structure schematic view of the utility model;

[0031] Figure 6 It is the movable plate local structure schematic view of the utility model;

[0032] Figure 7 It is the first pressure head section local structure schematic view of the utility model;

[0033] Figure 8 It is the second pressure head section local structure schematic view of the utility model.

[0034] In the drawing: 1, base; 2, fixed rod; 3, fixed plate; 4, placing rack; 5, first pressure head; 6, second pressure head; 7, movable plate; 8, screw rod; 9, spring; 10, pull plate; 11, hand wheel; 12, telescopic rod; 13, clamping block; 14, limiting column; 15, pull rod; 16, stopper; 17, limiting groove; 18, sliding block; 19, partition; 20, movable block; 21, fixed column. Specific implementation

[0035] The utility model is further described below with reference to the drawings.

[0036] Example 1

[0037] As Figure 1 , Figure 2 and Figure 4The utility model provides a press convenient to replace pressure head, including base 1, the top of base 1 is fixedly installed with fixed plate 3 through a pair of fixed link 2, and the inside fixed plate 3 of a pair of fixed link 2 is screw -threaded connection has screw rod 8, and the inside fixed plate 3 of screw rod 8 is extended and is rotatably connected with movable plate 7 through bearing, and the inside fixed plate 3 of screw rod 8 is extended and is fixedly installed with hand wheel 11, and a pair of fixed link 2 all penetrate the inside of movable plate 7, and the bottom of movable plate 7 is attached and is provided with first pressure head 5, and the both ends of movable plate 7 are provided with pull plate 10, and the inner end of each pull plate 10 is fixedly installed with a plurality of spring 9, and the inner end surface of each spring 9 is fixedly connected with movable plate 7 surface, and the inner end surface of each pull plate 10 in each spring 9 is fixedly installed with telescopic rod 12, and the inner end of each telescopic rod 12 is fixedly connected with movable plate 7 surface, and the inner end surface of each pull plate 10 in movable plate 7 bottom is fixedly installed with a plurality of clamping block 13, and each clamping block 13 is mutually clamped with the inside of first pressure head 5, and the bottom of base 1 is fixedly installed with placing rack 4, and the top of placing rack 4 is placed with second pressure head 6, and the inside of second pressure head 6 is provided with the clamping groove of shape matching with each clamping block 13 on both sides, and the top of first pressure head 5 is fixedly installed with a plurality of limit post 14, and the bottom of movable plate 7 is provided with a plurality of limit slot 17, and each limit post 14 is mutually clamped with each limit slot 17 inside respectively, and the top of second pressure head 6 is fixedly connected with a plurality of fixed column 21, and the shape of each fixed column 21 is same with each limit post 14.

[0038] In the embodiment, the size of the pressure head of the manual press proposed in the background art is fixed, and thus only workpieces within a certain range can be processed, resulting in limited processing range. In the application, the spring 9 can generate an inward pulling force on the pull plate 10, and thus the clamping block 13 can be clamped into the interior of the first pressure head 5, so as to realize installation of the first pressure head 5. The pull plate 10 can be pulled outward, and simultaneously the clamping block 13 can be separated from the interior of the first pressure head 5, so as to facilitate removal of the first pressure head 5 from the bottom and disassembly of the first pressure head 5. The second pressure head 6 is moved to the bottom of the movable plate 7, and then the spring 9 pulls the pull plate 10, and the clamping block 13 is clamped into the interior of the second pressure head 6, so as to realize replacement of the pressure head, so as to facilitate processing of different workpieces and expand the application range of the device. The limiting column 14 and the limiting groove 17 are arranged, and the limiting column 14 is clamped into the interior of the limiting groove 17, so as to further limit the position of the first pressure head 5 at the bottom of the movable plate 7, so as to ensure that the first pressure head 5 is moved to the middle position at the bottom of the movable plate 7, so as to facilitate subsequent use of the first pressure head 5. The fixed column 21 is arranged, and after the fixed column 21 is clamped into the interior of the limiting groove 17, the position of the second pressure head 6 at the bottom of the movable plate 7 can be further limited, so as to ensure that the second pressure head 6 is moved to the middle position at the bottom of the movable plate 7, so as to facilitate subsequent use of the second pressure head 6.

[0039] Embodiment 2

[0040] As Figure 4 , Figure 7 and Figure 8 indicated, on the basis of embodiment 1, the utility model provides a technical scheme: preferably, the opening of each limiting groove 17 bottom surface is greater than the sectional area of each limiting column 14 top surface, each clamping block 13 bottom surface is provided with an inward end top inclined inclined surface, the interior of each first pressure head 5 outside the clamping block 13 is slidably installed with a stop block 16, the inner side surface of each stop block 16 is respectively attached to the surface of each clamping block 13, and the top and bottom of each stop block 16 are fixedly installed with a sliding block 18. The interior of the first pressure head 5 outside each sliding block 18 is provided with a sliding groove, and each sliding block 18 is slidably connected between each sliding groove. The interior of each second pressure head 6 outside each clamping groove is slidably installed with a baffle 19, and the top and bottom of each baffle 19 are fixedly installed with a movable block 20. The interior of the second pressure head 6 outside each movable block 20 is provided with a movable groove, and each movable block 20 is slidably connected between each movable groove.

[0041] In the embodiment, by setting the opening of the bottom surface of the limiting groove 17 to be larger than the sectional area of the top surface of the limiting column 14, the limiting column 14 can be conveniently clamped into the limiting groove 17, thereby improving work efficiency; by opening the inclined surface at the bottom of the clamping block 13, the first pressing head 5 and the second pressing head 6 can be conveniently extruded to move the clamping block 13 to the outer end, thereby facilitating the first pressing head 5 and the second pressing head 6 to move to the state of being attached to the bottom surface of the movable plate 7, and improving work efficiency; after the operator pulls the pull plate 10 to one end or the other end, if it is then loosened, at this time the clamping block 13 will again be clamped into the inside of the first pressing head 5, so both ends of the pull plate 10 must be pulled at the same time to disassemble and process the first pressing head 5, but at this time the operator cannot free his hand to hold the first pressing head 5, and the first pressing head 5 is easy to fall to the bottom and be damaged, in the application, after pulling the pull plate 10 to one end or the other end, the stop block 16 at the specified position is pushed inward to clamp the stop block 16 into the inner end of the clamping block 13, at this time the clamping block 13 can be prevented from being clamped into the inside of the first pressing head 5 again, so the operator can conveniently free his hand to hold the bottom of the first pressing head 5, thereby providing convenience for the operator to disassemble the first pressing head 5; after the operator pulls the pull plate 10 to one end or the other end, if it is then loosened, at this time the clamping block 13 will again be clamped into the inside of the second pressing head 6, so both ends of the pull plate 10 must be pulled at the same time to disassemble and process the second pressing head 6, but at this time the operator cannot free his hand to hold the second pressing head 6, and the second pressing head 6 is easy to fall to the bottom and be damaged, in the application, after pulling the pull plate 10 to one end or the other end, the partition plate 19 at the specified position is pushed inward to clamp the partition plate 19 into the inner end of the clamping block 13, at this time the clamping block 13 can be prevented from being clamped into the inside of the second pressing head 6 again, so the operator can conveniently free his hand to hold the bottom of the second pressing head 6, thereby providing convenience for the operator to disassemble the second pressing head 6.

[0042] Embodiment 3

[0043] As Figure 1 , Figure 4 and Figure 5 indicated, on the basis of embodiment 2, the utility model provides a technical scheme: preferably, the surface of each pull plate 10 outer end is fixedly installed with a pull rod 15.

[0044] In the embodiment, by installing the pull rod 15, the contact area between the operator's hand and the pull plate 10 can be enlarged, so as to facilitate the movement operation of the pull plate 10.

[0045] The working principle of the press machine with the convenient-to-replace pressing head will be specifically described below.

[0046] As Figures 1-8As shown, according to the actual different processing requirements of the workpiece, the operator can pull the pull rod 15 to the outer end, so that the pull plate 10 moves synchronously, and the clamping block 13 is separated from the inner part of the first pressing head 5, at this time, the operator can move the stop block 16 to the inner end of the clamping block 13, so that the stop block 16 is limited to the clamping block 13, and then the other end of the pull plate 10 is pulled, so that the clamping block 13 is separated from the inner part of the first pressing head 5, and then the first pressing head 5 is conveniently disassembled from the bottom, the operator can pull the two pull rods 15 to the outer side, and move the second pressing head 6 to the bottom of the movable plate 7, so that the fixing column 21 is clamped into the inner part of the limiting groove 17, then the pull rod 15 is released, the clamping block 13 is clamped into the inner part of the second pressing head 6 by the spring 9, so that the pressing head is replaced, and the application range of the device is expanded.

[0047] The above has made a detailed description of the utility model in general, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A press machine facilitating replacement of a ram, comprising a base (1); characterized in that: The top of the base (1) is fixedly installed with a fixed plate (3) through a pair of fixed rods (2), the inside of the fixed plate (3) of the inside of the pair of fixed rods (2) is threadedly connected with a screw rod (8), the bottom of the screw rod (8) extends out of the inside of the fixed plate (3) and is rotatably connected with a movable plate (7) through a bearing, the top of the screw rod (8) extends out of the inside of the fixed plate (3) and is fixedly installed with a hand wheel (11), the pair of fixed rods (2) all penetrate the inside of the movable plate (7), the bottom of the movable plate (7) is abutly provided with a first pressing head (5), both ends of the movable plate (7) are provided with a pull plate (10), the inner end of each pull plate (10) is fixedly installed with a plurality of springs (9), the inner end surface of each spring (9) is fixedly connected with the surface of the movable plate (7), the inner end surface of each pull plate (10) in the inside of each spring (9) is fixedly installed with a telescopic rod (12), the inner end of each telescopic rod (12) is fixedly connected with the surface of the movable plate (7), the inner end surface of each pull plate (10) at the bottom of the movable plate (7) is fixedly installed with a plurality of clamping blocks (13), each clamping block (13) is clamped with the inside of the first pressing head (5), the bottom of the base (1) is fixedly installed with a placing rack (4), the top of the placing rack (4) places a second pressing head (6), the inside of the second pressing head (6) is provided with a clamping groove matched with the shape of each clamping block (13) on both sides, the top of the first pressing head (5) is fixedly installed with a plurality of limiting columns (14), the inside of the movable plate (7) is provided with a plurality of limiting grooves (17) at the bottom, each limiting column (14) is clamped with the inside of each limiting groove (17), the top of the second pressing head (6) is fixedly connected with a plurality of fixed columns (21), the shape and size of each fixed column (21) are same as each limiting column (14).

2. A press machine with a press head that is easy to replace according to claim 1, characterized in that: The opening of the bottom surface of each limiting groove (17) is larger than the sectional area of the top surface of each limiting column (14).

3. A press machine with a press head that is easy to replace according to claim 2, characterized in that: The bottom surface of each clamping block (13) is provided with an inclined surface inclined to the top of the inner end.

4. A press as claimed in claim 3, wherein: The inside of the first pressing head (5) of the outer side of the clamping block (13) is slidably installed with a stop block (16), the inner side surface of each stop block (16) is abutted with the surface of each clamping block (13) respectively.

5. A press for facilitating replacement of a ram as defined in claim 4, characterized in that: The top and bottom of each stop block (16) is fixedly installed with a sliding block (18), the inside of the first pressing head (5) of the outer periphery of each sliding block (18) is provided with a sliding groove, each sliding block (18) is slidably connected with each sliding groove respectively.

6. The press of claim 1 wherein: The inside of the second pressing head (6) of the outer side of each clamping groove is slidably installed with a partition plate (19), the top and bottom of each partition plate (19) is fixedly installed with a movable block (20), the inside of the second pressing head (6) of the outer periphery of each movable block (20) is provided with a movable groove, each movable block (20) is slidably connected with each movable groove respectively.

7. The press of claim 1 wherein: A pull rod (15) is fixedly installed on the surface of the outer end of each pull plate (10).

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