Clamping device of four-column hydraulic press

Abstract

The utility model belongs to the technical field of four-column hydraulic machines, and particularly relates to a four-column hydraulic machine clamping device which comprises a base, supporting rods are fixedly installed at the four corners of the top of the base, a top plate is fixedly installed at the tops of the supporting rods, a hydraulic assembly is arranged at the top of the top plate, and a machining table with an inner cavity is arranged in the center of the top of the base. Four sets of through holes are formed in the top of the machining table, a motor, a gear ring and a gear shaft are arranged in the machining table, sliding plates are slidably installed in the through holes, connecting blocks are fixedly installed at the tops of the sliding plates, the tops of the connecting blocks are parallel to the top of the machining table, and clamping blocks are slidably installed in the connecting blocks. By arranging the gear ring, the gear shafts and the sliding plate, when clamping is carried out, the motor is started to drive the gear ring to rotate and drive the four sets of gear shafts to rotate synchronously, so that the sliding plate slides, the four sides of a workpiece are clamped and limited through the clamping blocks, and the workpiece is prevented from deviating in the machining process.

Description

TECHNICAL FIELD

[0001] The utility model relates to four -column hydraulic press technical field, concretely is a four -column hydraulic press clamping device. BACKGROUND

[0002] Four -column hydraulic press is a kind of mechanical equipment using oil pump to deliver hydraulic oil static pressure to process metal, plastic, rubber, wood and powder products, it is often used in pressing process and pressing forming process, its principle is the mechanical using liquid pressure transmission made using Pascal's law, many kinds, of course, use is also according to the need is various, such as according to the liquid category of transmission pressure, there are two categories of oil press and water press.

[0003] Prior art has the following shortcomings;Prior art in the publication number CN219706189U "a four -column hydraulic press clamping device" "including groove, the groove is symmetrically opened on the upper end surface both ends of processing table;Sliding slot, the sliding slot is symmetrically opened on the upper end surface both ends of processing table and is located the outer side of two groove, the sliding slot is communicated with groove;And electric telescopic rod";

[0004] The above-mentioned equipment is when using the cooperation of clamping plate, pressure sensor and electric telescopic rod, the problem that the existing four -column hydraulic press for part machining may appear clamping plate blocking hydraulic plate to move downwards and thus affecting workpiece machining is solved, but when clamping workpiece, only the two sides of workpiece can be clamped, the front and back of workpiece cannot be clamped, workpiece is prone to shift in the process of machining, thereby affecting the machining of workpiece. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a four -column hydraulic press clamping device to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a four -column hydraulic press clamping device, including base, the top four corners of base are fixedly installed support rod, the top of support rod is fixedly installed top plate, the top of top plate is provided with hydraulic assembly, the top center of base is provided with the processing table with inner cavity, the top of processing table is provided with four groups of through -holes, the inside of processing table is equipped with motor and gear ring and gear shaft.

[0007] As a preferred technical scheme of the utility model, the inside of through -hole is slidably installed sliding plate, the top of sliding plate is fixedly installed connecting block, the top of connecting block is parallel with the top of processing table, the inside of connecting block is slidably installed clamping block.

[0008] As a preferred technical scheme of the utility model, the bottom of the clamping block is fixedly installed with a sliding rod, the bottom of the sliding rod extends to below the sliding plate and is slidably connected with the sliding plate, springs are fixedly installed between the clamping block and the sliding plate, and the springs are sleeved on the sliding rod.

[0009] As a preferred technical scheme of the utility model, the motor is fixedly installed inside the machining table, and the output end of the motor is fixedly connected with the bottom of the gear ring.

[0010] As a preferred technical scheme of the utility model, the top of the gear ring is fixedly installed with a rotating rod, the rotating rod is rotatably connected with the machining table, and the top of the gear ring is slidably connected with the bottom of the sliding plate.

[0011] As a preferred technical scheme of the utility model, the gear shafts are provided in four groups, the four groups of gear shafts are rotatably installed inside the machining table at equal intervals around the gear ring and are meshingly connected with the gear ring, and the top of the gear shaft is meshingly connected with one side of the sliding plate.

[0012] As a preferred technical scheme of the utility model, the hydraulic assembly comprises a hydraulic cylinder and a pressing plate, the hydraulic cylinder is fixedly installed at the top of the top plate, the telescopic end of the hydraulic cylinder penetrates through the top plate and fixedly installs the pressing plate, and the pressing plate is slidably connected with the supporting rods at four corners.

[0013] Compared with the prior art, the utility model provides a four-column hydraulic press clamping device which has the following beneficial effects:

[0014] 1. The four-column hydraulic press clamping device, by setting up the gear ring and the gear shaft and the sliding plate, when clamping, the motor is started to drive the gear ring to rotate and drive the four groups of gear shafts to rotate synchronously, so that the sliding plate slides, thereby the clamping block clamps and limits the four sides of the workpiece, thereby preventing the workpiece from deviating during machining.

[0015] 2. The four-column hydraulic press clamping device, by setting up the sliding rod and the spring, when the workpiece is subjected to hydraulic treatment, when the pressing plate contacts the clamping block, the clamping block is extruded, the clamping block is shrunk into the connecting block, and the spring is extruded, thereby preventing the clamping block from blocking the movement of the pressing plate when the hydraulic press is used, affecting the machining of the workpiece, and when the pressing plate moves upward, the spring resets and pushes the clamping block to reset, so as to clamp the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a top view sectional structure schematic view of the utility model;

[0018] Figure 3 It is a front view sectional structure schematic view of the utility model;

[0019] Figure 4 It is a inside three-dimensional structure schematic view of the utility model processing platform;

[0020] Figure 5 It is a inside structure schematic view of the utility model connecting block.

[0021] In the drawing: 1, base; 101, support rod; 102, top plate; 103, hydraulic cylinder; 104, pressing plate; 2, processing platform; 3, through hole; 301, sliding plate; 302, connecting block; 4, motor; 401, gear ring; 402, gear shaft; 403, rotating rod; 5, clamping block; 501, sliding rod; 502, spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-5 In the embodiment, the four-column hydraulic machine clamping device comprises a base 1, support rods 101 are fixedly installed at the top of the four corners of the base 1, top plates 102 are fixedly installed at the top of the support rods 101, hydraulic assemblies are arranged at the top of the top plates 102, processing platforms 2 with inner cavities are arranged in the base 1, four groups of through holes 3 are formed in the top of the processing platforms 2, motors 4, gear rings 401 and gear shafts 402 are arranged in the processing platforms 2.

[0024] In the embodiment, sliding plates 301 are slidably installed in the through holes 3, connecting blocks 302 are fixedly installed at the top of the sliding plates 301, the top of the connecting blocks 302 is parallel to the top of the processing platforms 2, and clamping blocks 5 are slidably installed in the connecting blocks 302.

[0025] In the embodiment, the bottom of the clamping block 5 is fixedly installed with a sliding rod 501, the bottom of the sliding rod 501 extends below the sliding plate 301 and is in sliding connection with the sliding plate 301, the spring 502 is fixedly installed between the clamping block 5 and the sliding plate 301 and is sleeved on the sliding rod 501, when the pressing plate 104 contacts the clamping block 5, the clamping block 5 is extruded to shrink into the inside of the connecting block 302 and extrude the spring 502, thereby preventing the clamping block 5 from blocking the movement of the pressing plate 104 and affecting the machining of the workpiece when the hydraulic machine is in use, and the spring 502 resets and pushes the clamping block 5 to reset when the pressing plate 104 moves upward, so as to clamp the workpiece.

[0026] In the embodiment, the motor 4 is fixedly installed in the inside of the machining table 2 and the output end of the motor 4 is fixedly connected with the bottom of the gear ring 401.

[0027] In the embodiment, the top of the gear ring 401 is fixedly installed with a rotating rod 403, the rotating rod 403 is in rotating connection with the machining table 2, and the top of the gear ring 401 is in sliding connection with the bottom of the sliding plate 301.

[0028] In the embodiment, the gear shaft 402 is provided with four groups, the four groups of gear shafts 402 are equidistantly distributed and rotatably installed in the inside of the machining table 2 and are in meshing connection with the gear ring 401, the top of the gear shaft 402 is in meshing connection with one side of the sliding plate 301, when clamping, the gear ring 401 is driven to rotate by the motor 4 and the four groups of gear shafts 402 are synchronously rotated, so that the sliding plate 301 slides, thereby clamping and limiting the four sides of the workpiece by the clamping block 5, so as to prevent the workpiece from deviating during machining.

[0029] In the embodiment, the hydraulic assembly includes a hydraulic cylinder 103 and a pressing plate 104, the hydraulic cylinder 103 is fixedly installed on the top of the top plate 102, the telescopic end of the hydraulic cylinder 103 penetrates through the top plate 102 and fixedly installs the pressing plate 104, the pressing plate 104 is in sliding connection with the supporting rod 101 at four corners, when in use, the pressing plate 104 is driven to move downward by the hydraulic cylinder 103 to perform hydraulic treatment on the workpiece.

[0030] The working principle and use process of the utility model are as follows: the workpiece is placed above the machining table 2, the motor 4 is started to drive the gear ring 401 to rotate and drive the four groups of gear shafts 402 to rotate synchronously, the sliding plate 301 is caused to slide, the four sides of the workpiece are clamped and limited by the clamping blocks 5, then the hydraulic cylinder 103 is started to drive the pressing plate 104 to move downwards to perform hydraulic treatment on the workpiece, when the pressing plate 104 contacts the clamping block 5, the clamping block 5 is extruded, the clamping block 5 is retracted into the inside of the connecting block 302, and the spring 502 is extruded, thereby preventing the clamping block 5 from blocking the movement of the pressing plate 104 when the hydraulic machine is used, affecting the machining of the workpiece, and when the pressing plate 104 moves upwards, the spring 502 resets and pushes the clamping block 5 to reset.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A four-column hydraulic press clamping device, comprising a base (1), characterized in that: Support rods (101) are fixedly installed at the four corners of the top of the base (1), a top plate (102) is fixedly installed on the top of the support rods (101), a hydraulic assembly is arranged on the top of the top plate (102), a processing table (2) with an inner cavity is arranged at the center of the top of the base (1), four groups of through holes (3) are opened on the top of the processing table (2), and a motor (4), a gear ring (401) and a gear shaft (402) are arranged inside the processing table (2).

2. The four-column hydraulic press clamping device according to claim 1, characterized in that: A slide plate (301) is slidably mounted inside the through hole (3), a connecting block (302) is fixedly mounted on the top of the slide plate (301), the top of the connecting block (302) is parallel to the top of the processing table (2), and a clamping block (5) is slidably mounted inside the connecting block (302).

3. The four-column hydraulic press clamping device according to claim 2, characterized in that: A sliding rod (501) is fixedly installed at the bottom of the clamping block (5), and the bottom of the sliding rod (501) extends to the bottom of the slide plate (301) and is slidably connected to the slide plate (301). A spring (502) is fixedly installed between the clamping block (5) and the slide plate (301), and the spring (502) is sleeved on the sliding rod (501).

4. The four-column hydraulic press clamping device according to claim 1, characterized in that: The motor (4) is fixedly mounted inside the processing table (2), and the output end of the motor (4) is fixedly connected to the bottom of the gear ring (401).

5. The four-column hydraulic press clamping device according to claim 1, characterized in that: A rotating rod (403) is fixedly mounted on the top of the gear ring (401), the rotating rod (403) is rotatably connected to the processing table (2), and the top of the gear ring (401) is slidably connected to the bottom of the slide plate (301).

6. The four-column hydraulic press clamping device according to claim 1, characterized in that: The gear shafts (402) are provided in four groups. The four groups of gear shafts (402) are equidistantly distributed and rotatably mounted inside the processing table (2) around the gear ring (401) and meshedly connected with the gear ring (401). The tops of the gear shafts (402) are meshedly connected with one side of the slide plate (301).

7. The four-column hydraulic press clamping device according to claim 1, characterized in that: The hydraulic assembly comprises a hydraulic cylinder (103) and a pressure plate (104); the hydraulic cylinder (103) is fixedly mounted on the top of the top plate (102); the telescopic end of the hydraulic cylinder (103) passes through the top plate (102) to fix the pressure plate (104); and the four corners of the pressure plate (104) are respectively slidably connected to the support rod (101).

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