Multi-station hydraulic tool clamp

Abstract

The utility model discloses a multi-station hydraulic work fixture, which relates to the technical field of fixtures, and comprises a base, the top of the base is fixedly connected with two bases, the tops of the two bases are fixedly connected with partition plates, the top of the base is fixedly provided with a first hydraulic cylinder and two second hydraulic cylinders, and the two second hydraulic cylinders are fixedly connected with the partition plates. The two second hydraulic cylinders are located on the two sides of the first hydraulic cylinder correspondingly. And the pressing and fixing mechanism comprises a first mounting base, two second mounting bases, a lifting block, a spring piece, a telescopic guide rod and a pressing plate, the bottom of the first mounting base is fixedly connected with the telescopic end of the first hydraulic cylinder, and the number of the second mounting bases is two. Compared with the prior art, the synchronous pressing and fixing device can be used for synchronously pressing and fixing a plurality of workpieces, the workpieces can be well pressed, clamped and fixed even if small thickness errors exist among the workpieces, workpiece discharging operation can be conveniently carried out subsequently, and the overall practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially a kind of multi-station hydraulic tool fixture. BACKGROUND

[0002] Multi-station hydraulic tool fixture is a kind of hydraulic drive fixture system integrated with multiple stations, aiming to fix, support and position multiple workpieces simultaneously or sequentially to realize efficient and continuous machining or assembly operation. This fixture system is particularly suitable for batch production environment, which can significantly improve production efficiency and machining consistency. Multi-station hydraulic tool fixture is widely used in automobile manufacturing, aerospace, electronic assembly, metal processing and other industries, especially suitable for occasions requiring mass production and high efficiency, such as the following.

[0003] After searching, the patent with authorization announcement number CN215747956U discloses a kind of multi-station hydraulic tool fixture, including hydraulic station and the driving device connected with it by two oil pipes, the driving device is drivingly connected with several transmission parts, each transmission part is rotatably connected with a compression part, two transmission parts between adjacent are equipped with a material placing table. The utility model discloses a plurality of transmission parts connected with driving device, and compression part is arranged on each transmission part, which can realize synchronous compression of workpiece on multiple stations, improve the clamping efficiency of workpiece;By setting adjusting member on each compression part, the extension length of each compression part can be adjusted to compress workpieces of different contour sizes, expanding the application range of the fixture.

[0004] However, the existing multi-station hydraulic tool fixture still has the following optimization points, for example, when multiple workpieces are compressed and clamped, due to the thickness error within a certain range of some workpieces, these errors will cause slight differences in the thickness of the workpieces, so when multiple pressure plates are driven by the same hydraulic cylinder to move down and compress and clamp different workpieces simultaneously, since the bottoms of multiple pressure plates are flush, the compression and clamping effect of different workpieces may be different due to the thickness difference between different workpieces, for example, thicker workpieces can be well compressed and clamped, while thinner workpieces are difficult to be well compressed and clamped, and the structure needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of multi-station hydraulic tool fixtures, it is fixed with compacting mechanism by being provided with, when multiple workpieces are compacted and clamped fixed, multiple workpieces can be placed on two bases respectively, and be separated by baffle, then first hydraulic cylinder and second hydraulic cylinder can be started, first hydraulic cylinder and second hydraulic cylinder can drive first mounting seat and second mounting seat to move downwards, first mounting seat and second mounting seat move downwards and can drive multiple lifting blocks to move downwards, lifting block moves downwards and can drive pressing plate to move downwards, when multiple pressing plates respectively and the top of multiple workpieces abut and compact, multiple spring leaf compression state, and telescopic guide rod contracts, ensure the stability of pressing plate, not easy to dislocation deviation, to multiple workpieces compacted and clamped fixed processing, even if there is individual workpiece because of error reason leads to thickness difference, it will be due to the compression of multiple spring leaves, these smaller differences are made up, ensure that multiple pressing plates can be compacted and clamped fixed to multiple workpieces respectively, to ensure that multiple workpieces compacted and clamped effect and stability, in turn effectively improve the practicability of device, in summary, the problems in the background art are solved.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model discloses a kind of multi-station hydraulic tool fixtures, including base, the top of the base is fixedly connected with two bases, the top of two bases is fixedly connected with baffle, the top of the base is fixedly installed with first hydraulic cylinder and second hydraulic cylinder, the second hydraulic cylinder is equipped with two, two second hydraulic cylinders are located at the two sides of first hydraulic cylinder respectively;

[0008] Compact fixing mechanism, the compact fixing mechanism includes first mounting seat, second mounting seat, lifting block, spring leaf, telescopic guide rod and pressing plate, the bottom of the first mounting seat is fixedly connected with the telescopic end of first hydraulic cylinder, the second mounting seat is equipped with two, the bottom of two second mounting seats is fixedly connected with the telescopic end of two second hydraulic cylinders respectively, the two sides of the first mounting seat are fixedly connected with two lifting blocks, and the opposite side of two second mounting seats is also fixedly connected with two lifting blocks, the bottom of the lifting block is fixedly connected with multiple spring leaves, the top of the pressing plate is fixedly connected with multiple spring leaves, the top of the pressing plate is fixedly connected with multiple telescopic guide rods, the telescopic end of the telescopic guide rod is fixedly connected with the bottom of the lifting block;

[0009] Auxiliary discharging mechanism, the auxiliary discharging mechanism is located at the top of two baffles.

[0010] Further, the bottom of the pressing plate is attached and fixed with anti-skid pad layer, the anti-skid pad layer is made of rubber material.

[0011] Further, the spring sheet is made of high carbon steel material, and the spring sheet is fixedly connected with the lifting block and the pressing plate by welding.

[0012] Further, the top of the base is fixedly connected with a plurality of telescopic plates, two of the telescopic plates form a group, and the telescopic ends of three groups of the telescopic plates are fixedly connected with the bottoms of the first mounting seat and the second mounting seat.

[0013] Further, the two telescopic plates in the same group are symmetrically arranged at the bottoms of the first mounting seat and the second mounting seat.

[0014] Further, the auxiliary discharging mechanism comprises a top seat, a double-head screw rod, a hydraulic motor and a sliding seat, the top seat, the double-head screw rod and the hydraulic motor are provided with two, two top seats are fixedly installed on the top of the partition plate, two grooves are formed in the bottom of the top seat, a through movable slot is formed in the inside of the top seat between the two grooves, the double-head screw rod is rotatably installed on the top of the top seat through two bearing seats, the hydraulic motor is fixedly installed on the top of the top seat, and the output end of the hydraulic motor is connected with one end of the double-head screw rod, the sliding seat is provided with four, two of the sliding seats form a group, and the two sliding seats in the same group are slidably connected with the two grooves in the bottom of the same group of top seats through a plurality of sliding connecting pieces, two sliding blocks are symmetrically screwed on the outside of the double-head screw rod, the bottom of the sliding block is fixedly connected with the top of the sliding seat through the movable slot, and the bottom of the sliding seat is fixedly connected with a pushing plate, and the opposite sides of the two pushing plates in the same group are respectively attached to the two sides of the partition plate.

[0015] Further, the bottom of the pushing plate is attached to the top of the base, and the bottom of the pushing plate is a smooth surface.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1、 the technical scheme is provided with the compression fixing mechanism, so that when a plurality of workpieces are compressed and clamped and fixed, a plurality of workpieces can be compressed and clamped and fixed in multiple stations through the compression fixing structure, even if individual workpieces have thickness differences due to errors, the small differences can be made up due to the compression of the plurality of spring sheets in the compression fixing structure, so that a plurality of pressing plates can respectively compress and clamp and fix a plurality of workpieces, thereby ensuring the compression and clamping effect and stability of the plurality of workpieces, and thereby effectively improving the practicality of the device.

[0018] 2. The auxiliary discharging mechanism is arranged, so that after the workpiece is processed, the workpiece can be pushed out of the range below the pressing plate through the auxiliary discharging mechanism after the pressing and clamping fixation of the workpiece is released, the operable space of the workpiece is expanded, the workpiece is conveniently and quickly discharged, and the practicability of the device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application.

[0021] Figure 2 It is a schematic diagram of the lifting block mounting structure of the present application.

[0022] Figure 3 It is a schematic diagram of the pressing plate mounting explosion structure of the present application.

[0023] Figure 4 It is Figure 3 The enlarged structure schematic diagram of A in the above-mentioned figure.

[0024] Figure 5 It is a schematic diagram of the top seat mounting explosion structure of the present application.

[0025] In the figure: 1, base; 2, base; 3, partition; 4, first hydraulic cylinder; 5, second hydraulic cylinder; 6, pressing and fixing mechanism; 601, first mounting seat; 602, second mounting seat; 603, lifting block; 604, spring sheet; 605, telescopic guide rod; 606, pressing plate; 607, anti-skid pad; 608, telescopic plate; 7, auxiliary discharging mechanism; 701, top seat; 702, double-head screw; 703, hydraulic motor; 704, sliding seat; 705, sliding groove; 706, movable groove; 707, sliding block; 708, pushing plate. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] In the description of the utility model, it is understood that the terms "surface", "side", "gap", "peripheral side" and the like indicate the orientation or positional relationship, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. Specific embodiment 1:

[0029] With reference to Figures 1-4 A multi-station hydraulic tool clamp, comprising a base 1, the top of the base 1 is fixedly connected with two bases 2, the top of each of the two bases 2 is fixedly connected with a partition plate 3, the top of the base 1 is fixedly installed with a first hydraulic cylinder 4 and a second hydraulic cylinder 5, the second hydraulic cylinder 5 is provided with two, and the two second hydraulic cylinders 5 are respectively located on the two sides of the first hydraulic cylinder 4; a pressing and fixing mechanism 6, the pressing and fixing mechanism 6 comprises a first mounting seat 601, a second mounting seat 602, a lifting block 603, a spring sheet 604, a telescopic guide rod 605 and a pressing plate 606, the bottom of the first mounting seat 601 is fixedly connected with the telescopic end of the first hydraulic cylinder 4, the second mounting seat 602 is provided with two, the bottom of each of the two second mounting seats 602 is fixedly connected with the telescopic end of the two second hydraulic cylinders 5, the two sides of the first mounting seat 601 are each fixedly connected with two lifting blocks 603, and the opposite side of the two second mounting seats 602 is also each fixedly connected with two lifting blocks 603, the bottom of the lifting block 603 is fixedly connected with a plurality of spring sheets 604, the top of the pressing plate 606 is fixedly connected with the plurality of spring sheets 604, the top of the pressing plate 606 is fixedly connected with a plurality of telescopic guide rods 605, and the telescopic end of the telescopic guide rod 605 is fixedly connected with the bottom of the lifting block 603; an auxiliary discharging mechanism 7, the auxiliary discharging mechanism 7 is located on the top of the two partition plates 3;

[0030] The bottom of the pressing plate 606 is fixedly attached with a non-slip pad layer 607, the non-slip pad layer 607 is made of rubber material; the spring sheet 604 is made of high-carbon steel material, and the spring sheet 604 is fixedly connected with the lifting block 603 and the pressing plate 606 in a welding manner; the top of the base 1 is fixedly connected with a plurality of telescopic plates 608, the plurality of telescopic plates 608 are two by two in a group, and the telescopic ends of the three groups of telescopic plates 608 are respectively fixedly connected with the bottoms of the first mounting seat 601 and the second mounting seat 602; the two telescopic plates 608 in the same group are symmetrically located at the bottoms of the first mounting seat 601 and the second mounting seat 602.

[0031] In the specific implementation process, when clamping and fixing multiple workpieces, the multiple workpieces can be placed on two bases 2 respectively and separated by partitions 3. Then, the first hydraulic cylinder 4 and the second hydraulic cylinder 5 can be activated. The first hydraulic cylinder 4 and the second hydraulic cylinder 5 can drive the first mounting base 601 and the second mounting base 602 to move down. The movement of the first mounting base 601 and the second mounting base 602 can drive the multiple lifting blocks 603 to move down. The movement of the lifting blocks 603 can drive the pressure plate 606 to move down. When the multiple pressure plates 606 are respectively abutting and tightening against the top of the multiple workpieces, the multiple spring plates 604 are compressed and the telescopic guide rod 605 is contracted to ensure the stability of the pressure plate 606 and prevent misalignment. This allows for clamping and fixing of multiple workpieces. Even if some workpieces have different thicknesses due to errors, the compression of the multiple spring plates 604 will make up for these small differences, ensuring that the multiple pressure plates 606 can clamp and fix the multiple workpieces respectively, thus ensuring the clamping effect and stability of multiple workpieces.

[0032] Among them, the anti-slip pad 607 can increase the friction force after the pressure plate 606 and the workpiece are pressed together, thereby improving the pressing and fixing effect on the workpiece;

[0033] Among them, the spring sheet 604, made of high carbon steel, has high strength and hardness, as well as good elasticity. The spring sheet 604 is fixedly connected to the lifting block 603 and the pressure plate 606 by welding to ensure that the spring sheet 604 has high connection strength with the lifting block 603 and the pressure plate 606 and is not easy to break or separate.

[0034] The telescopic plate 608 can improve the stability of the first mounting base 601 and the second mounting base 602 during lifting.

[0035] The two telescopic plates 608 in the same group are symmetrically located at the bottom of the first mounting base 601 and the second mounting base 602 in order to improve the stability of the first mounting base 601 and the second mounting base 602 when they move up and down more evenly. Specific Implementation Example 2:

[0037] Reference Figure 1 and Figure 5In a preferred implementation, the auxiliary discharging mechanism 7 comprises top seats 701, double-head lead screws 702, hydraulic motors 703 and sliding seats 704, two of each of the top seats 701, the double-head lead screws 702 and the hydraulic motors 703, the two top seats 701 are fixedly installed on the top of the partition plate 3, two sliding grooves 705 are formed on the bottom of the top seat 701, a through active slot 706 is formed in the top seat 701 between the two sliding grooves 705, the double-head lead screw 702 is rotatably installed on the top of the top seat 701 through two bearing seats, the hydraulic motor 703 is fixedly installed on the top of the top seat 701, and the output end of the hydraulic motor 703 is connected with one end of the double-head lead screw 702, the sliding seat 704 is provided with four, two of the sliding seats 704 are a group, the two sliding seats 704 in the same group are slidably connected with the two sliding grooves 705 at the bottom of the same group of top seats 701 through a plurality of sliding connecting pieces, two sliding blocks 707 are symmetrically screwed on the outside of the double-head lead screw 702, the bottom of the sliding block 707 is fixedly connected with the top of the sliding seat 704 through the active slot 706, the bottom of the sliding seat 704 is fixedly connected with a pushing plate 708, and the opposite sides of the two pushing plates 708 in the same group are respectively attached to the two sides of the partition plate 3; the bottom of the pushing plate 708 is attached to the top of the base 2, and the bottom of the pushing plate 708 is a smooth surface.

[0038] In the specific implementation process, after the workpiece is processed, the workpiece can be first released from the pressing and clamping fixation, and then the two hydraulic motors 703 can be started to drive the two double-head lead screws 702 to rotate, and when the double-head lead screw 702 rotates, the two sliding blocks 707 can be matched to synchronously drive the two sliding seats 704 to move in opposite directions, thereby synchronously driving the two pushing plates 708 to move in opposite directions, pushing the workpiece out of the range below the pressing plate 606, expanding the operable space of the workpiece, so as to facilitate the quick and convenient discharging treatment of the workpiece.

[0039] Among them, the bottom of the pushing plate 708 is attached to the top of the base 2 in order to better push the thinner workpiece.

[0040] Working principle: when using, when multiple workpieces are pressed and clamped, multiple workpieces can be placed on two bases 2 respectively, and separated by the partition plate 3, then the first hydraulic cylinder 4 and the second hydraulic cylinder 5 can be started, the first hydraulic cylinder 4 and the second hydraulic cylinder 5 can drive the first mounting seat 601 and the second mounting seat 602 to move down, the first mounting seat 601 and the second mounting seat 602 move down to drive multiple lifting blocks 603 to move down, the lifting blocks 603 move down to drive the pressing plate 606 to move down, when multiple pressing plates 606 respectively abut against the top of multiple workpieces, multiple spring sheets 604 are in compression state, and the telescopic guide rod 605 is retracted, ensuring the stability of the pressing plate 606, not easy to dislocation deviation, so as to press and clamp multiple workpieces, even if there is an individual workpiece due to error causes the thickness difference, also due to the compression of multiple spring sheets 604, these small differences are made up, ensure that multiple pressing plates 606 can respectively press and clamp multiple workpieces, so as to ensure the pressing and clamping effect and stability of multiple workpieces;

[0041] And after completing the processing of the workpiece, the pressing and clamping of the workpiece can be released first, then two hydraulic motors 703 can be started to drive two double-head screws 702 to rotate, when the double-head screw 702 rotates, it can cooperate with the two sliding blocks 707 to synchronously drive the two sliding seats 704 to move in opposite directions, thereby synchronously driving the two pushing plates 708 to move in opposite directions, pushing the workpiece out of the range below the pressing plate 606, expanding the operable space of the workpiece, so as to facilitate the quick and convenient discharging of the workpiece.

[0042] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, nor limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the utility model, so that those skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A multi-station hydraulic tooling fixture, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to two bases (2), and the top of each of the two bases (2) is fixedly connected to a partition (3). The top of the base (1) is fixedly installed with a first hydraulic cylinder (4) and a second hydraulic cylinder (5). There are two second hydraulic cylinders (5), and the two second hydraulic cylinders (5) are located on both sides of the first hydraulic cylinder (4). A clamping and fixing mechanism (6) is provided, comprising a first mounting base (601), a second mounting base (602), a lifting block (603), a spring plate (604), a telescopic guide rod (605), and a pressure plate (606). The bottom of the first mounting base (601) is fixedly connected to the telescopic end of the first hydraulic cylinder (4). Two second mounting bases (602) are provided, and the bottoms of the two second mounting bases (602) are respectively fixedly connected to the telescopic ends of the two second hydraulic cylinders (5). Two lifting blocks (603) are fixedly connected to both sides of the 01), and two lifting blocks (603) are also fixedly connected to the opposite side of the two second mounting seats (602). Multiple spring plates (604) are fixedly connected to the bottom of the lifting block (603), and the top of the pressure plate (606) is fixedly connected to the multiple spring plates (604). Multiple telescopic guide rods (605) are fixedly connected to the top of the pressure plate (606), and the telescopic end of the telescopic guide rod (605) is fixedly connected to the bottom of the lifting block (603). An auxiliary discharge mechanism (7) is located on top of two partitions (3).

2. The multi-station hydraulic tooling fixture according to claim 1, characterized in that: The bottom of the pressure plate (606) is fitted with an anti-slip pad (607), which is made of rubber material.

3. The multi-station hydraulic tooling fixture according to claim 1, characterized in that: The spring sheet (604) is made of high carbon steel, and the spring sheet (604) is fixedly connected to the lifting block (603) and the pressure plate (606) by welding.

4. A multi-station hydraulic tooling fixture according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a plurality of telescopic plates (608), and the plurality of telescopic plates (608) are in pairs as a group. The telescopic ends of the three groups of telescopic plates (608) are fixedly connected to the bottom of the first mounting base (601) and the second mounting base (602), respectively.

5. A multi-station hydraulic tooling fixture according to claim 4, characterized in that: Two telescopic plates (608) of the same set are symmetrically located at the bottom of the first mounting base (601) and the second mounting base (602).

6. A multi-station hydraulic tooling fixture according to claim 1, characterized in that: The auxiliary discharge mechanism (7) includes a top seat (701), a double-ended lead screw (702), a hydraulic motor (703), and a slide (704). Two top seats (701), two double-ended lead screws (702), and two hydraulic motors (703) are provided. The two top seats (701) are respectively fixedly installed on the top of the partition plate (3). Two sliding grooves (705) are provided at the bottom of each top seat (701). A through-hole movable groove (706) is provided inside the top seat (701) between the two sliding grooves (705). The double-ended lead screw (702) is rotatably mounted on the top of the top seat (701) via two bearing seats. The hydraulic motor (703) is fixedly installed on the top of the top seat (701). The output end of the hydraulic motor (703) is connected to one end of the double-ended lead screw (702). There are four slides (704), and the four slides (704) are in pairs. The two slides (704) in the same group are slidably connected to the two sliding grooves (705) at the bottom of the top seat (701) of the same group through multiple sliding connectors. The double-ended lead screw (702) is symmetrically screwed with two sliders (707). The bottom of the slider (707) passes through the movable groove (706) and is fixedly connected to the top of the slide (704). The bottom of the slide (704) is fixedly connected with a pusher plate (708). The opposite sides of the two pusher plates (708) in the same group are respectively attached to the two sides of the partition (3).

7. A multi-station hydraulic tooling fixture according to claim 6, characterized in that: The bottom of the pusher plate (708) is attached to the top of the base (2), and the bottom of the pusher plate (708) is a smooth surface.

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