CN220007554U - Split type hydraulic clamp - Google Patents

Abstract

The utility model belongs to the technical field of hydraulic clamps, and particularly relates to a split hydraulic clamp which comprises a clamp pressing plate, a support and a power device, wherein a connecting protrusion is arranged on the side surface of the power device, a connecting groove is arranged on the side surface of the support, the connecting protrusion is arranged in the connecting groove, a plurality of supporting springs are arranged at the bottom of the connecting protrusion, two ends of each supporting spring are respectively abutted with the connecting protrusion and the inner side surface of the connecting groove, one end of the clamp pressing plate is rotatably arranged on the support, and the other end of the clamp pressing plate is abutted with the moving end of the power device. Through structure setting when going up for the anchor clamps can reduce the friction with between the installation face at the in-process that removes, and support and host computer template parallel contact when hydraulic pressure anchor clamps clamp die simultaneously increase the area of stress, reduce stress.

Description

Split type hydraulic clamp

Technical Field

The utility model belongs to the technical field of hydraulic clamps, and particularly relates to a split hydraulic clamp.

Background

The hydraulic clamp mainly utilizes hydraulic elements to replace mechanical parts, and realizes the automatic positioning, supporting and clamping of workpieces through hydraulic control, has the characteristics of large clamping force, stable work and the like, and is widely applied to production equipment such as injection molding machine die clamping, die casting machine die clamping, punch press die clamping, numerical control machine tools, automatic production lines and the like.

The hydraulic clamp mainly comprises a hydraulic control part and a mechanical transmission part, the hydraulic part generates certain hydraulic pressure to drive the transmission part to act so as to realize clamping, and the transmission process of the clamp is hydraulic transmission, so that the vibration and deformation of a workpiece can be reduced while enough clamping force is provided, the hydraulic clamp can bear larger cutting force to realize rough machining, and accurate positioning of the workpiece during machining can be ensured.

Among the prior art, hydraulic pressure anchor clamps have higher performance, extensively apply to among the automation equipment, like application number 202020450724.7 a high accuracy hydraulic pressure anchor clamps, including annotating liquid subassembly, drive assembly, support and distance tester, drive assembly includes piston and anchor clamps clamp plate, the surface of support is equipped with the travel groove, the piston set up in the travel inslot and with the inner wall sliding connection in travel groove, the lower surface of piston with be equipped with the hydraulic pressure chamber between the inner wall in travel groove, annotate liquid subassembly and be fixed in on the support and be used for controlling hydraulic pressure in the hydraulic pressure chamber, the anchor clamps clamp plate includes rotation portion and is located the stiff end and the clamping end of rotation portion opposite both sides, the anchor clamps clamp plate passes through rotation portion with the support rotates to be connected, the stiff end is fixed in on the top surface of piston, distance tester is fixed in the surface of support and be used for to PLC control center transmission the top surface of piston extremely distance numerical value between the distance tester. The machining efficiency of the workpiece is obviously improved, and the oil pressure in the hydraulic cavity is regulated and controlled more accurately.

The hydraulic clamp in the prior art is adopted, so that the technical problems of large friction force and overlarge stress caused by insufficient contact area between the hydraulic clamp and a host template exist in the moving process of the hydraulic clamp in the using process.

Disclosure of Invention

The utility model aims to provide a split hydraulic clamp, which aims to solve the technical problems of large moving friction force of the hydraulic clamp and a main machine template in the prior art.

In order to achieve the above purpose, the split hydraulic clamp provided by the embodiment of the utility model comprises a clamp pressing plate, a bracket and a power device, wherein a connecting protrusion is arranged on the side surface of the power device, a connecting groove is arranged on the side surface of the bracket, the connecting protrusion is arranged in the connecting groove, a plurality of supporting springs are arranged at the bottom of the connecting protrusion, two ends of each supporting spring are respectively abutted with the connecting protrusion and the inner side surface of the connecting groove, one end of the clamp pressing plate is rotatably arranged on the bracket, and the other end of the clamp pressing plate is abutted with the moving end of the power device.

Preferably, the bottom of the connecting protrusion is provided with a plurality of mounting grooves, and the supporting springs are mounted in the mounting grooves.

Preferably, the side surface of the connecting protrusion is provided with a plurality of elastic connecting devices, and one end of each elastic connecting device penetrates through the corresponding support to be connected with the side surface of the connecting protrusion.

Preferably, the power device comprises a cross frame platform and a movable device, the connecting protrusion is arranged on the side face of the cross frame platform, a power groove is formed in the top of the cross frame platform, an oil pipe joint communicated with the power groove is arranged on the side face of the cross frame platform, the movable device is installed in the power groove, and one end of the clamp pressing plate is abutted to the movable end of the movable device.

Preferably, the movable device comprises a cylinder cover and a piston device, the cylinder cover covers the power groove and is fixedly installed on the transverse frame platform in a sealing mode, the piston device is installed in the power groove, a piston of the piston device is in sliding connection with the cylinder cover, an opening for the piston to pass through is formed in the top of the cylinder cover, and one end of the clamp pressing plate is located at the opening and is abutted to the moving end of the piston.

Preferably, the piston device further comprises a travel spring, a guiding wear-resistant ring, a first sealing ring and a sealing retainer ring, wherein the guiding wear-resistant ring, the first sealing ring and the sealing retainer ring are all sleeved on a hydraulic cap of the piston, the outer side surfaces of the guiding wear-resistant ring, the first sealing ring and the sealing retainer ring are all abutted on the inner side wall of the cylinder cover, the travel spring is sleeved on a transmission rod of the piston, and two ends of the travel spring are respectively abutted on the inner wall of the cylinder cover and the hydraulic cap.

Preferably, an annular abrasion-resistant groove and a first sealing groove are formed in the side face of the hydraulic cap, the guide abrasion-resistant sleeve is sleeved in the abrasion-resistant groove, the first sealing ring and the sealing retainer ring are sleeved in the first sealing groove, and the sealing retainer ring is located above the first sealing ring.

Preferably, an annular second sealing groove is formed in the bottom surface, abutting against the transverse frame platform, of the cylinder cover, the second sealing groove surrounds the power groove, a second sealing ring is arranged in the second sealing groove, and the inner side surface of the second sealing groove is tightly attached to the top plane of the transverse frame platform.

Preferably, one end of the clamp pressing plate is provided with a clamping end, and the clamping end extends to the outside of the bracket.

Preferably, a return device and two supporting blocks are arranged at the top of the bracket, the clamp pressing plate is rotatably arranged between the two supporting blocks, the return device is positioned between the two supporting blocks, and the return device is positioned below the clamp pressing plate.

The above technical scheme or schemes in the split hydraulic clamp provided by the embodiment of the utility model at least have one of the following technical effects:

the split hydraulic clamp is assembled by the clamp pressing plate, the support and the power device, wherein a connecting bulge is arranged on the side surface of the power device, a connecting groove which is mutually matched with the connecting bulge is correspondingly formed on the side surface of the support, the connecting bulge is assembled in the connecting groove, a plurality of supporting springs are arranged at the bottom of the connecting bulge, the other ends of the supporting springs are abutted to the inner side surface of the connecting groove, the power device is pushed to move upwards by the supporting springs, when the support moves, the supporting springs push the power device to move upwards to be separated from a contact surface, friction is reduced, one end of the clamp pressing plate is rotatably mounted on the support, the other end of the clamp pressing plate is abutted to the moving end of the power device, when the power device operates, the other end of the clamp pressing plate is pushed to move upwards, the other end of the corresponding clamp pressing plate rotates downwards around the clamp pressing plate and the support, an object to be clamped is fixed, the hydraulic clamp support is in parallel contact with a host machine template, stress area is increased, stress is reduced, a return groove is arranged at the top of the support, the support is positioned below the clamp pressing plate, and a device for assisting the clamp pressing plate at one end is arranged in the return groove, one end of the return groove is rotatably mounted on the support, the support pressing plate is abutted to the clamp, the clamp pressing plate is abutted to the moving on the moving end of the support, and the clamp pressing plate is reset plate is enabled to move in a reset structure after the reset structure is reset, and the reset structure is arranged to be capable of being moved, and the reset, and the friction is arranged is reduced, and the friction is arranged and can be clamped when the clamp is moved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an effect diagram of a split hydraulic clamp according to an embodiment of the present utility model.

Fig. 2 is a side view of a split hydraulic clamp according to an embodiment of the present utility model.

Fig. 3 is a cross-sectional view taken along line A-A in fig. 2.

Fig. 4 is a partial enlarged view of D in fig. 3.

Fig. 5 is a sectional view taken along line B-B of fig. 2.

Fig. 6 is a cross-sectional view taken along line C-C of fig. 2.

Fig. 7 is an exploded view of a split hydraulic clamp according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

10-clamp press plate 11-clamping end 20-bracket

21-connecting groove 22-return device 23-supporting block

24-elastic connection device 30-power device 31-transverse frame platform

32-moving device 211-supporting spring 311-connecting projection

312-power tank 313-oil pipe joint 321-cylinder cover

322-piston device a-piston b-stroke spring

c-guiding wear-resistant ring d-first sealing ring e-sealing retainer ring

f-wear-resisting groove g-first seal groove h-second seal ring

i-a second seal groove.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in fig. 1-7, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, as shown in fig. 1 to 7, a split hydraulic clamp is provided, which comprises a clamp press plate 10, a support 20 and a power device 30, wherein the support 20 is slidably mounted on a fitting, the support 20 drives the power device 30 to move, wherein the power device 30 pushes the clamp press plate 10 to rotate to clamp an object, the support 20 provides mounting positions of the clamp press plate 10 and the power device 30, the side surface of the power device 30 is provided with a connecting protrusion 311, the side surface of the support 20 is provided with a connecting groove 21, the corner between each surface of the connecting protrusion 311 is 90 degrees, the included angle between the two side surfaces of the connecting protrusion 311 and the side surface of the power device 30 is 90 degrees, the connecting included angle between the three surfaces on the inner side of the corresponding connecting groove 21 is also 90 degrees, the groove width of the corresponding connecting groove 21 is larger than the thickness of the connecting protrusion 311, so that the connecting protrusion 311 can move up and down in the connecting groove 21, the connecting protrusion 311 is mounted in the connecting groove 21, the bottom of the connecting protrusion 311 is provided with a plurality of supporting springs 211, two ends of the supporting springs 211 are respectively connected with the connecting protrusion 311 and the inner side surface of the connecting groove 21, the rotating device of the connecting protrusion 311 is abutted against one end of the power device 10 which moves up to the other end of the corresponding clamp press plate 10, and the other end of the power device 10 which moves up against the moving end of the connecting protrusion 10, and the opposite to the moving end of the connecting protrusion 10 is further rotated, and the moving end of the connecting protrusion 10 is abutted against the connecting protrusion 10, and the moving end 10 is moved up against the opposite to the moving end of the connecting protrusion 10, and the moving end is moved up, realizing the clamping function.

The split hydraulic clamp is assembled by a clamp pressing plate 10, a bracket 20 and a power device 30, wherein a connecting protrusion 311 is arranged on the side surface of the power device 30, a connecting groove 21 which is mutually matched with the connecting protrusion 311 is correspondingly arranged on the side surface of the bracket 20, the connecting protrusion 311 is assembled in the connecting groove 21, a plurality of supporting springs 211 are arranged at the bottom of the connecting protrusion 311, the other ends of the supporting springs 211 are abutted against the inner side surface of the connecting groove 21, the power device 30 is pushed to move upwards by the supporting springs 211, when the bracket 20 moves, the supporting springs 211 push the power device 30 to move upwards to be separated from a contact surface, friction is reduced, one end of the clamp pressing plate 10 is rotatably arranged on the bracket 20, and the other end of the clamp pressing plate 10 is abutted against the moving end of the power device 30, when the power device 30 operates, one end of the clamp pressing plate 10, which is abutted against the power device 30, is pushed to move upwards, the other end of the corresponding clamp pressing plate 10 rotates downwards around the rotation connecting point of the clamp pressing plate 10 and the bracket 20, an object to be clamped is fixed, the hydraulic clamp bracket 20 is in parallel contact with the host template, the stressed area is increased, the stress is reduced, a return groove is formed in the top of the bracket 20, the return groove is positioned below the clamp pressing plate 10, a return device 22 for assisting the return of one end of the clamp pressing plate 10 is arranged in the return groove, when the clamp pressing plate 10 is reset after the clamping action is completed, the next clamping action is waited, and through the structural arrangement during the lifting, the friction between the clamp and the mounting surface can be reduced in the moving process.

In another embodiment of the present utility model, as shown in fig. 6 to 7, a plurality of mounting grooves are formed at the bottom of the connection protrusion 311, the supporting springs 211 are mounted in the mounting grooves, and the supporting springs 211 are hidden in the mounting grooves, so that the space required for assembling the connection protrusion 311 is effectively saved.

In another embodiment of the present utility model, as shown in fig. 5 and 7, a plurality of elastic connection devices 24 are disposed on the side of the connection protrusion 311, one end of each elastic connection device 24 passes through the bracket 20 to be connected with the side of the connection protrusion 311, a connecting rod of each elastic connection device 24 passes through the bracket 20 to be fixedly connected with the connection protrusion 311, a movable spring is sleeved at the other end of the connecting rod, the other end of the movable spring is abutted with the bracket 20, so that a certain buffer exists between the connection protrusion 311 and the connection groove 21, and the compactness between the connection protrusion 311 and the connection groove 21 is ensured.

In another embodiment of the present utility model, as shown in fig. 1, 3 and 5 to 7, the power device 30 includes a cross frame platform 31 and a movable device 32, the connection protrusion 311 is disposed on a side surface of the cross frame platform 31, a power groove 312 is formed at the top of the cross frame platform 31, an oil pipe joint 313 communicated with the power groove 312 is disposed on a side surface of the cross frame platform 31, connection between the power groove 312 and an external pipe is achieved, the movable device 32 is installed in the power groove 312, one end of the clamp press plate 10 abuts against a moving end of the movable device 32, the cross frame platform 31 moves under the action of the supporting spring 211, so that the power device 30 is separated from contact with a mounting surface of the support 20, friction force in the moving process of the support 20 is reduced, the movable device 32 is assembled in the power groove 312, and the moving end of the movable device 32 pushes the clamp press plate 10 in cooperation with the action of the power groove 312.

In another embodiment of the present utility model, as shown in fig. 1, 3 and 5-7, the movable device 32 includes a cylinder cover 321 and a piston device 322, the cylinder cover 321 is fixedly mounted on the cross frame platform 31 in a sealing manner, the piston device 322 is mounted in the power groove 312, a piston a of the piston device 322 is slidably connected with the cylinder cover 321, an opening through which the piston a passes is formed at the top of the cylinder cover 321, one end of the clamp pressing plate 10 is located at the opening and abuts against the moving end of the piston a, the piston device 322 is slidably mounted in the cylinder cover 321, and the piston device 322 and the inner side surface of the cylinder cover 321 are in a sealing manner, when the cylinder cover 321 is fixedly mounted on the cross frame platform 31, the piston device 322 is correspondingly located in the power groove 312, and pushes the piston device 322 to move up and down under the action of the power groove 312, thereby pushing one end of the clamp pressing plate 10 to move.

In another embodiment of the present utility model, as shown in fig. 3 to 7, the piston device 322 further includes a travel spring b, a guiding wear ring c, a first sealing ring d and a sealing ring e, where the guiding wear ring c, the first sealing ring d and the sealing ring e are all sleeved on a hydraulic cap of the piston a, and the outer side surfaces of the guiding wear ring c, the first sealing ring d and the sealing ring e are all abutted on an inner side wall of the cylinder cover 321, the travel spring b is sleeved on a transmission rod of the piston a, and two ends of the travel spring b are respectively abutted on an inner wall of the cylinder cover 321 and a hydraulic cap, the travel spring b ensures repeated movement and restoration of the piston a in a fixed travel, the guiding wear ring c can avoid direct friction between the piston a and the inner side surface of the cylinder cover 321, increase the service life of the piston a, reduce maintenance cost, the Y-shaped sealing ring has better sealing performance than the O-shaped sealing ring, the first sealing ring d and the sealing ring e promote sealing performance between the piston a and the inner side wall of the cylinder cover 321, and hydraulic oil is prevented from leaking into the travel cavity where the spring is installed between the piston a and the inner side surface of the cylinder cover 321 b.

In another embodiment of the present utility model, as shown in fig. 3 to 7, an annular wear-resistant groove f and a first sealing groove g are formed on the side surface of the hydraulic cap, a guiding wear-resistant ring c is sleeved in the wear-resistant groove f, a first sealing ring d and a sealing retainer ring e are both sleeved in the first sealing groove g, and the sealing retainer ring e is located above the first sealing ring d, so that the space between the piston a and the inner side surface of the cylinder cover 321 is effectively reduced through the arrangement of the annular wear-resistant groove f and the first sealing groove g, and the sealing treatment between the piston a and the cylinder cover 321 is facilitated.

In another embodiment of the present utility model, as shown in fig. 3 to 6, an annular second sealing groove i is disposed on the bottom surface where the cylinder cover 321 abuts against the cross frame platform 31, and the second sealing groove i is disposed around the power groove 312, and a second sealing ring h is disposed in the second sealing groove i, and is closely attached to the inner side surface of the second sealing groove i and the top plane of the cross frame platform 31, when the cylinder cover 321 is fixedly mounted on the cross frame platform 31, the second sealing ring h is pressed under the action of pressure, so as to ensure the tightness of the contact surface between the cylinder cover 321 and the cross frame platform 31.

In another embodiment of the present utility model, as shown in fig. 1, 3 and 5 to 7, one end of the clamp pressing plate 10 is provided with a clamping end 11, and the clamping end 11 is extended to the outside of the bracket 20, and the clamping end 11 is located at one end of the clamp pressing plate 10 far away from the power device 30, so that when the power device 30 lifts up one end of the clamp pressing plate 10, the clamping end 11 moves in the opposite direction to realize the clamping function, and the bottom of the clamping end 11 is provided with an arc surface protruding downwards, so that related operations can be smoothly realized.

In another embodiment of the present utility model, as shown in fig. 3 and fig. 6 to 7, a return device 22 and two supporting blocks 23 are disposed at the top of the bracket 20, and the clamp pressing plate 10 is rotatably installed between the two supporting blocks 23, the return device 22 is located between the two supporting blocks 23, and the return device 22 is located below the clamp pressing plate 10, when the clamping end 11 moves downward, the clamp pressing plate 10 compresses a return spring of the return device 22, and after pressure relief, the return spring provides an upward elastic force to the clamping end 11, so as to assist the clamp pressing plate 10 to return.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A split hydraulic clamp is characterized in that: including anchor clamps clamp plate, support and power device, power device's side is provided with the connection arch, the side of support is provided with the connection recess, the connection arch install in the connection recess, just the connection arch bottom is provided with a plurality of supporting springs, supporting spring's both ends respectively with the connection arch with the medial surface butt of connection recess, the one end of anchor clamps clamp plate rotate install in on the support, the other end of anchor clamps clamp plate with power device's removal end butt.

2. The split hydraulic clamp of claim 1, wherein: the bottom of the connecting bulge is provided with a plurality of mounting grooves, and the supporting spring is mounted in the mounting grooves.

3. The split hydraulic clamp of claim 1, wherein: the side of the connecting bulge is provided with a plurality of elastic connecting devices, and one end of each elastic connecting device penetrates through the corresponding support to be connected with the side of the connecting bulge.

4. The split hydraulic clamp of claim 1, wherein: the power device comprises a transverse frame platform and a movable device, wherein the connecting protrusion is arranged on the side face of the transverse frame platform, a power groove is formed in the top of the transverse frame platform, an oil pipe joint communicated with the power groove is arranged on the side face of the transverse frame platform, the movable device is arranged in the power groove, and one end of the clamp pressing plate is abutted to the movable end of the movable device.

5. The split hydraulic clamp of claim 4, wherein: the movable device comprises a cylinder cover and a piston device, the cylinder cover covers the power groove and is fixedly installed on the transverse frame platform in a sealing mode, the piston device is installed in the power groove, a piston of the piston device is connected with the cylinder cover in a sliding mode, an opening through which the piston penetrates is formed in the top of the cylinder cover, and one end of the clamp pressing plate is located at the opening and is abutted to the movable end of the piston.

6. The split hydraulic clamp of claim 5, wherein: the piston device further comprises a travel spring, a guide wear-resistant ring, a first sealing ring and a sealing retainer ring, wherein the guide wear-resistant ring, the first sealing ring and the sealing retainer ring are sleeved on a hydraulic cap of the piston, the outer side surfaces of the guide wear-resistant ring, the first sealing ring and the sealing retainer ring are abutted to the inner side wall of the cylinder cover, the travel spring is sleeved on a transmission rod of the piston, and two ends of the travel spring are abutted to the inner wall of the cylinder cover and the hydraulic cap respectively.

7. The split hydraulic clamp of claim 6, wherein: the side of hydraulic cap has offered annular antifriction groove and first seal groove, the direction antifriction snare is located in the antifriction groove, first sealing washer with the sealing ring all overlaps to be located in the first seal groove, just the sealing ring is located first sealing washer top.

8. The split hydraulic clamp of claim 5, wherein: the cylinder cap with be provided with annular second seal groove on the bottom surface of crossbearer platform butt, just the second seal groove encircles the power groove sets up, be provided with the second sealing washer in the second seal groove, the second sealing washer is hugged closely second seal groove medial surface with crossbearer platform top plane sets up.

9. The split hydraulic clamp of claim 1, wherein: one end of the clamp pressing plate is provided with a clamping end, and the clamping end extends to the outside of the bracket.

10. The split hydraulic clamp of claim 1, wherein: the top of the bracket is provided with a return device and two supporting blocks, the clamp pressing plate is rotatably arranged between the two supporting blocks, the return device is positioned between the two supporting blocks, and the return device is positioned below the clamp pressing plate.