Hydraulic machine with workpiece crushing protection structure

Abstract

The utility model provides a hydraulic machine with a structure for preventing a workpiece from being broken, belongs to the technical field of hydraulic machines, and aims to solve the problem that the workpiece is possibly broken and damaged when the downward pressing force is too large. A base is included; a connecting mechanism is slidably arranged in the pressure applying frame, and an auxiliary device is fixedly arranged at the top of the connecting mechanism. A clamping assembly is fixedly arranged at the top of the fixed table; the machining assembly is installed on the inner side of the clamping assembly. By arranging a fixing barrel, a baffle, a spring piece and a pressing column, the upper mold frame and the hydraulic cylinder can be elastically connected; the upper die frame gradually pressurizes the workpiece; meanwhile, the pressure borne by the workpiece can be indicated through the pressure value displayed by the pressure sensor; when the pressure is too large, pressing of the hydraulic machine can be stopped in time; therefore, when the workpiece is pressed, the phenomenon that the workpiece is broken and damaged due to the fact that the downward pressing force is too large can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic presses, and more specifically, relates to a hydraulic press with a workpiece crushing protection structure. Background Art

[0002] A hydraulic press is a machine that uses the static pressure of liquid to process metal, plastic, rubber, wood, powder and other products; it is often used in pressing and forming processes, such as forging, stamping, cold extrusion, straightening, bending, flanging, sheet metal drawing, powder metallurgy, press fitting, etc.

[0003] Existing hydraulic presses usually use hydraulic cylinders to drive the mold to press the workpiece. However, when the hydraulic cylinder drives the mold to press the workpiece, the mold and the hydraulic cylinder are usually rigidly connected. Therefore, when the pressure under the mold is too high, the workpiece may be broken and damaged. In addition, the molds equipped with existing hydraulic presses are not convenient for rapid replacement of the corresponding molds according to the processing requirements of the workpiece, which reduces the practicality of the hydraulic press. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a hydraulic press with a protective workpiece crushing structure to solve the problem proposed in the above background technology that when the downward pressure is too large, the workpiece may be crushed and damaged; and it is inconvenient to quickly replace the corresponding mold according to the processing requirements of the workpiece.

[0005] The utility model is a hydraulic press with a protective workpiece crushing structure, which is achieved by the following specific technical means:

[0006] A hydraulic press with a protective workpiece crushing structure comprises a base; a fixed platform is fixedly provided on the top of the base, support frames are fixedly provided on both sides of the top of the base, and a fixed frame is fixedly provided on the top of the support frame; a control module is fixedly provided on the top of the fixed frame, and a hydraulic cylinder is fixedly provided inside the fixed frame; the hydraulic cylinder and the control module are electrically connected, and a pressure frame is fixedly provided at the bottom of the telescopic end of the hydraulic cylinder; support columns A are fixedly provided on the top of the fixed platform, and the support columns A are symmetrically provided in four groups;

[0007] A connecting mechanism is slidingly provided inside the pressure frame, and an auxiliary device is fixedly provided on the top of the connecting mechanism; a clamping component is fixedly provided on the top of the fixed platform, and the clamping components are symmetrically provided at two locations, and the other clamping component is fixedly provided at the bottom of the connecting mechanism; a processing component is installed on the inside of the clamping component.

[0008] In at least some embodiments, vertical columns are slidingly arranged on both sides of the fixing frame, and spring members are arranged between the top ends of the vertical columns and the top of the fixing frame; two groups of vertical columns are symmetrically arranged, and the bottom ends of the vertical columns are fixedly connected to the pressure frame; balls are rotatably arranged in a circular array inside the fixing frame, and the outer sides of the balls are in contact with the outer sides of the vertical columns.

[0009] In at least some embodiments, the connecting mechanism includes: a connecting column, a top plate, a horizontal plate and a support column B; the connecting column is slidably arranged inside the pressure frame; the top plate is fixedly arranged at the top of the connecting column, and the bottom of the top plate is in contact with the top of the pressure frame; the horizontal plate is fixedly arranged at the bottom end of the connecting column; the support column B is fixedly arranged at the bottom of the horizontal plate, and the support column B and the connecting column are symmetrically arranged in four groups.

[0010] In at least some embodiments, the auxiliary device includes: a fixed cylinder, a pressing column, a baffle, a fixed seat and a pressure sensor; the fixed cylinder is fixedly arranged on the top of the horizontal plate, and the fixed cylinder is slidably arranged inside the pressure frame; the pressing column is slidably arranged inside the top side of the fixed cylinder; the baffle is fixedly arranged at the bottom end of the pressing column, and the baffle is slidably arranged inside the fixed cylinder, and a spring member is arranged between the bottom of the baffle and the inside of the fixed cylinder; the fixed seat is fixedly arranged on the top of the pressure frame; the pressure sensor is fixedly arranged on the inner side of the top of the fixed seat, and the pressure sensor is located directly above the pressing column, and the pressure sensor and the control module are electrically connected.

[0011] In at least some embodiments, the clamping assembly includes: a clamping seat, a double-headed screw, a threaded seat, a guide rod and a guide seat; the clamping seat is fixedly arranged at the top of the fixed platform and the bottom of the horizontal plate respectively; the double-headed screw is rotatably arranged inside the clamping seat, and a handwheel is fixedly arranged at the top of the double-headed screw; the threaded seat is arranged on the outside of the double-headed screw through a threaded connection; the guide rod is fixedly arranged inside the clamping seat; and the guide seat is slidably arranged on the outside of the guide rod.

[0012] In at least some embodiments, the clamping assembly further comprises: a clamping frame and a connecting block; the clamping frame is fixedly disposed between the guide seat and the threaded seat; the connecting block is fixedly disposed on the inner side of the clamping frame, and the connecting block and the clamping frame are symmetrically disposed in four groups.

[0013] In at least some embodiments, the processing assembly includes: a connecting seat, a connecting hole, a lower mold frame and an upper mold frame; the connecting seat is movably arranged between two groups of clamping frames, and the connecting seat is arranged in two groups; the connecting holes are opened inside both sides of the connecting seat, and connecting blocks are slidably arranged inside the connecting holes; the lower mold frame is fixedly arranged on the top of one group of connecting seats, and the bottom of the lower mold frame is in contact with the top of the support column A; the upper mold frame is fixedly arranged on the bottom of another group of connecting seats, and the top of the upper mold frame is in contact with the bottom of the support column B.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, by providing a fixed cylinder and a baffle as well as a spring member and a pressing column, the upper mold frame and the hydraulic cylinder can be elastically connected; the upper mold frame gradually pressurizes the workpiece; at the same time, the pressure value displayed by the pressure sensor can indicate the pressure on the workpiece; when the pressure is too high, the hydraulic press can be stopped in time; and when the workpiece is pressed, it can prevent the workpiece from being broken or damaged due to excessive downward pressure.

[0016] 2. In the present invention, by providing a double-headed screw and a threaded seat as well as a guide rod and a guide seat, the two sets of clamping frames can drive the connecting blocks to slide quickly into the connecting holes; thus, the upper mold frame and the lower mold frame can be conveniently fixed to the bottom of the horizontal plate and the top of the fixed table respectively; thus, the upper mold frame and the lower mold frame can be replaced according to the requirements of the workpiece to be processed; thereby enhancing the practicality of the hydraulic press.

[0017] 3. In the present invention, by providing a circular array of balls, the vertical sliding effect of the vertical column can be enhanced; the vertical column can better limit the pressure frame; at the same time, the vertical column and the spring member can ensure the stability of the pressure frame when moving up and down; it is beneficial for the upper mold frame to apply pressure to the workpiece steadily, which helps to avoid damage to the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the upper surface structure of the fixing platform of the utility model.

[0020] Figure 3 It is a schematic diagram of the lower surface structure of the lower mold frame of the utility model.

[0021] Figure 4 It is a schematic diagram of the internal structure of the fixing frame of the utility model.

[0022] Figure 5 It is a schematic diagram of the upper surface structure of the pressure frame of the present utility model.

[0023] Figure 6 It is a schematic diagram of the lower surface structure of the pressure frame of the present utility model.

[0024] Figure 7 It is a schematic diagram of the upper surface structure of the upper mold frame of the utility model.

[0025] Figure 8 It is a schematic cross-sectional structural diagram of the fixing cylinder of the present utility model.

[0026] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0027] 1. Base; 101. Fixed platform; 102. Support frame; 103. Fixed frame; 104. Hydraulic cylinder; 105. Vertical column; 106. Ball bearing; 107. Control module; 108. Pressure frame; 109. Support column A;

[0028] 2. Connecting mechanism; 201. Connecting column; 202. Top plate; 203. Horizontal plate; 204. Support column B;

[0029] 3. Auxiliary device; 301. Fixed cylinder; 302. Pressing column; 303. Baffle; 304. Fixed seat; 305. Pressure sensor;

[0030] 4. Clamping assembly; 401. Clamping seat; 402. Double-headed screw; 403. Threaded seat; 404. Guide rod; 405. Guide seat; 406. Clamping frame; 407. Connecting block;

[0031] 5. Processing components; 501. Connecting seat; 502. Connecting hole; 503. Lower mold frame; 504. Upper mold frame. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.

[0033] Example 1:

[0034] As attached Figure 1 To the attached Figure 8 As shown:

[0035] The utility model provides a hydraulic press with a protective workpiece crushing structure, comprising a base 1; a fixed platform 101 is fixedly provided on the top of the base 1, and support frames 102 are fixedly provided on both sides of the top of the base 1, and a fixed frame 103 is fixedly provided on the top of the support frame 102; a control module 107 is fixedly provided on the top of the fixed frame 103, and a hydraulic cylinder 104 is fixedly provided inside the fixed frame 103; the hydraulic cylinder 104 and the control module 107 are electrically connected, and a pressure frame 108 is fixedly provided at the bottom of the telescopic end of the hydraulic cylinder 104, and the hydraulic cylinder 104 is configured as a digital hydraulic cylinder; a support column A109 is fixedly provided on the top of the fixed platform 101, and the support column A109 is symmetrically provided in four groups;

[0036] In the embodiment of the present disclosure, a connecting mechanism 2 is slidingly provided inside the pressure frame 108, and an auxiliary device 3 is fixedly provided on the top of the connecting mechanism 2; a clamping assembly 4 is fixedly provided on the top of the fixed platform 101, and the clamping assembly 4 is symmetrically provided at two locations, and the other clamping assembly 4 is fixedly provided at the bottom of the connecting mechanism 2; a processing assembly 5 is installed inside the clamping assembly 4; the connecting mechanism 2 includes: a connecting column 201, a top plate 202, a horizontal plate 203 and a support column B204; the connecting column 201 is slidingly provided on the pressure frame 108, and an auxiliary device 3 is fixedly provided on the top of the fixed platform 101 ... bottom of the connecting mechanism 2; a processing assembly 5 is installed inside the clamping assembly 4; the connecting mechanism 2 includes: a connecting column 201, a top plate 202, a horizontal plate 203 and a support column B204; the connecting column 201 is slidingly provided on the pressure frame 108, and an auxiliary device 3 is fixedly provided on the top of the fixed platform 101; a clamping assembly 4 is fixedly provided on the bottom of the connecting mechanism 2 The top plate 202 is fixed on the top of the connecting column 201, and the bottom of the top plate 202 is in contact with the top of the pressure frame 108; the horizontal plate 203 is fixed on the bottom of the connecting column 201; the support column B204 is fixed on the bottom of the horizontal plate 203, and the support column B204 and the connecting column 201 are symmetrically arranged in four groups; the auxiliary device 3 includes: a fixed cylinder 301, a pressing column 302, a baffle 303, a fixed seat 304 and a pressure sensor 305; the fixed cylinder 301 is fixed on ... The top of the plate 203, and the fixed cylinder 301 is slidably set inside the pressure frame 108; the pressing column 302 is slidably set inside the top side of the fixed cylinder 301; the baffle 303 is fixedly set at the bottom of the pressing column 302, and the baffle 303 is slidably set inside the fixed cylinder 301, and a spring member is set between the bottom of the baffle 303 and the inside of the fixed cylinder 301; the fixing seat 304 is fixedly set at the top of the pressure frame 108; the pressure sensor 305 is fixedly set on the inner side of the top of the fixing seat 304, and the pressure sensor 305 It is located directly above the pressing column 302, and an electrical connection is set between the pressure sensor 305 and the control module 107; its specific function is: by providing a fixed cylinder 301 and a baffle 303 as well as a spring member and a pressing column 302, the upper mold frame 504 and the hydraulic cylinder 104 can be elastically connected; the upper mold frame 504 gradually pressurizes the workpiece; at the same time, the pressure value displayed by the pressure sensor 305 can indicate the pressure on the workpiece; when the pressure is too high, the hydraulic press can be stopped in time.

[0037] Example 2:

[0038] As attached Figure 1 , Attachment Figure 4 With attached Figure 5As shown: On the basis of embodiment 1, vertical columns 105 are slidingly provided on both sides of the fixing frame 103, and a spring member is provided between the top of the vertical column 105 and the top of the fixing frame 103; the vertical columns 105 are symmetrically provided in two groups, and the bottom end of the vertical column 105 is fixedly connected to the pressure frame 108; the interior of the fixing frame 103 is provided with a circular array of balls 106 for rotation, and the outer side of the ball 106 is in contact with the outer side of the vertical column 105; its specific function is: by providing the balls 106 in a circular array, the vertical sliding effect of the vertical column 105 can be enhanced; the vertical column 105 can better limit the pressure frame 108; at the same time, the vertical column 105 and the spring member can be used to ensure the stability of the pressure frame 108 when it moves up and down.

[0039] Example 3:

[0040] As attached Figure 2 , Attachment Figure 3 , Attachment Figure 6 With attached Figure 7 As shown: Based on the first and second embodiments, the clamping assembly 4 includes: a clamping seat 401, a double-headed screw 402, a threaded seat 403, a guide rod 404, a guide seat 405, a clamping frame 406 and a connecting block 407; the clamping seat 401 is fixedly arranged on the top of the fixed platform 101 and the bottom of the horizontal plate 203 respectively; the double-headed screw 402 is rotatably arranged inside the clamping seat 401, and a handwheel is fixedly arranged on the top of the double-headed screw 402; the threaded seat 403 is fixedly arranged on the top of the fixed platform 101 and the bottom of the horizontal plate 203; The threaded connection is arranged on the outside of the double-headed screw 402; the guide rod 404 is fixedly arranged inside the clamping seat 401; the guide seat 405 is slidably arranged on the outside of the guide rod 404; the clamping frame 406 is fixedly arranged between the guide seat 405 and the threaded seat 403; the connecting block 407 is fixedly arranged on the inside of the clamping frame 406, and the connecting block 407 and the clamping frame 406 are symmetrically arranged in four groups; the processing component 5 includes: a connecting seat 501, a connecting hole 502, The lower mold frame 503 and the upper mold frame 504; the connecting seat 501 is movably arranged between the two groups of clamping frames 406, and the connecting seat 501 is arranged in two groups; the connecting holes 502 are opened inside the two sides of the connecting seat 501, and the connecting blocks 407 are slidably arranged inside the connecting holes 502; the lower mold frame 503 is fixedly arranged at the top of one group of connecting seats 501, and the bottom of the lower mold frame 503 is in contact with the top of the support column A109; the upper mold frame 504 is fixedly arranged at the bottom of the other group of connecting seats 501, and the top of the upper mold frame 504 is in contact with the bottom of the support column B204; its specific function is: by providing a double-headed screw 402 and a threaded seat 403 and a guide rod 404 and a guide seat 405, the two groups of clamping frames 406 can drive the connecting blocks 407 to slide quickly into the connecting holes 502; and then the upper mold frame 504 and the lower mold frame 503 can be conveniently fixed to the bottom of the horizontal plate 203 and the top of the fixed platform 101 respectively.

[0041] The specific usage and function of this embodiment are as follows:

[0042] In the present invention, when in use, the lower mold frame 503 is placed on the top of the fixed platform 101, so that the bottom connecting seat 501 of the lower mold frame 503 is located between the two groups of clamping frames 406, and the double-headed screw 402 is rotated. The double-headed screw 402 drives the two groups of clamping frames 406 to move in opposite directions at the same time through the threaded seat 403, the guide rod 404 and the guide seat 405, so that the connecting block 407 slides into the connecting hole 502, thereby fixing the lower mold frame 503; then the upper mold frame 504 is placed on the bottom of the horizontal plate 203, so that the connecting block 407 slides into the connecting hole 502, so that the upper mold frame 504 is fixed; the workpiece is placed on the top of the lower mold frame 503; then the hydraulic cylinder 104 is started, and the hydraulic cylinder 104 drives the vertical column 105 The pressure frame 108 moves downward, so that the bottom of the upper mold frame 504 is in elastic contact with the workpiece through the fixed cylinder 301, the baffle 303 and the spring member; at the same time, the top of the pressing column 302 presses the pressure sensor 305; the pressure frame 108 continues to move downward, so that the upper mold frame 504 gradually presses the workpiece; at the same time, the pressing column 302 gradually presses the pressure sensor 305, so that the pressure value of the pressure sensor 305 increases; when the pressure value of the pressure sensor 305 reaches a predetermined value, it indicates that the workpiece pressing is completed; at the same time, the pressure sensor 305 transmits the pressure signal to the control module 107, and the control module 107 controls the telescopic end of the hydraulic cylinder 104 to move in the opposite direction, so that the upper mold frame 504 is lifted, so that the workpiece processing is completed.

Claims

1. A hydraulic press with a workpiece crushing protection structure, characterized in that: include: A base (1); a fixed platform (101) is fixedly provided on the top of the base (1), and support frames (102) are fixedly provided on both sides of the top of the base (1), and a fixed frame (103) is fixedly provided on the top of the support frame (102); a control module (107) is fixedly provided on the top of the fixed frame (103), and a hydraulic cylinder (104) is fixedly provided inside the fixed frame (103); the hydraulic cylinder (104) and the control module (107) are electrically connected, and a pressure frame (108) is fixedly provided at the bottom of the telescopic end of the hydraulic cylinder (104); a support column A (109) is fixedly provided on the top of the fixed platform (101), and the support columns A (109) are symmetrically provided in four groups; A connecting mechanism (2) is slidingly provided inside the pressure frame (108), and an auxiliary device (3) is fixedly provided on the top of the connecting mechanism (2); a clamping assembly (4) is fixedly provided on the top of the fixed platform (101), and the clamping assembly (4) is symmetrically provided at two locations, and the other clamping assembly (4) is fixedly provided at the bottom of the connecting mechanism (2); a processing assembly (5) is installed on the inner side of the clamping assembly (4).

2. The hydraulic press with a workpiece crushing protection structure according to claim 1, characterized in that: Vertical columns (105) are slidably provided inside the two sides of the fixing frame (103), and a spring member is provided between the top of the vertical column (105) and the top of the fixing frame (103); the vertical columns (105) are symmetrically provided in two groups, and the bottom ends of the vertical columns (105) and the pressure frame (108) are fixedly connected; balls (106) are rotatably provided in a circular array inside the fixing frame (103), and the outer sides of the balls (106) are in contact with the outer sides of the vertical columns (105).

3. The hydraulic press with a workpiece crushing protection structure according to claim 1, characterized in that: The connecting mechanism (2) comprises: a connecting column (201), a top plate (202), a horizontal plate (203) and a support column B (204); the connecting column (201) is slidably arranged inside the pressure frame (108); the top plate (202) is fixedly arranged on the top of the connecting column (201), and the bottom of the top plate (202) is in contact with the top of the pressure frame (108); the horizontal plate (203) is fixedly arranged on the bottom end of the connecting column (201); the support column B (204) is fixedly arranged on the bottom of the horizontal plate (203), and the support column B (204) and the connecting column (201) are symmetrically arranged in four groups.

4. The hydraulic press with a workpiece crushing protection structure according to claim 3, characterized in that: The auxiliary device (3) comprises: a fixed cylinder (301), a pressing column (302), a baffle (303), a fixed seat (304) and a pressure sensor (305); the fixed cylinder (301) is fixedly arranged on the top of the horizontal plate (203), and the fixed cylinder (301) is slidably arranged inside the pressure frame (108); the pressing column (302) is slidably arranged inside the top side of the fixed cylinder (301); the baffle (303) is fixedly arranged on the bottom end of the pressing column (302), and the baffle ( 303) is slidably arranged inside the fixed cylinder (301), and a spring member is arranged between the bottom of the baffle (303) and the inside of the fixed cylinder (301); the fixed seat (304) is fixedly arranged on the top of the pressure frame (108); the pressure sensor (305) is fixedly arranged on the inner side of the top of the fixed seat (304), and the pressure sensor (305) is located directly above the pressing column (302), and the pressure sensor (305) and the control module (107) are arranged to be electrically connected.

5. The hydraulic press with a workpiece crushing protection structure according to claim 3, characterized in that: The clamping assembly (4) comprises: a clamping seat (401), a double-headed screw (402), a threaded seat (403), a guide rod (404) and a guide seat (405); the clamping seat (401) is fixedly arranged on the top of the fixed platform (101) and the bottom of the horizontal plate (203) respectively; the double-headed screw (402) is rotatably arranged inside the clamping seat (401), and a hand wheel is fixedly arranged on the top of the double-headed screw (402); the threaded seat (403) is arranged on the outside of the double-headed screw (402) through a threaded connection; the guide rod (404) is fixedly arranged inside the clamping seat (401); and the guide seat (405) is slidably arranged on the outside of the guide rod (404).

6. The hydraulic press with a workpiece crushing protection structure according to claim 5, characterized in that: The clamping assembly (4) further comprises: a clamping frame (406) and a connecting block (407); the clamping frame (406) is fixedly arranged between the guide seat (405) and the threaded seat (403); the connecting block (407) is fixedly arranged on the inner side of the clamping frame (406), and the connecting block (407) and the clamping frame (406) are both symmetrically arranged in four groups.

7. The hydraulic press with a workpiece crushing protection structure according to claim 6, characterized in that: The processing assembly (5) comprises: a connecting seat (501), a connecting hole (502), a lower mold frame (503) and an upper mold frame (504); the connecting seat (501) is movably arranged between two groups of clamping frames (406), and the connecting seat (501) is arranged in two groups; the connecting hole (502) is opened inside both sides of the connecting seat (501), and a connecting block (407) is slidably arranged inside the connecting hole (502); the lower mold frame (503) is fixedly arranged on the top of one group of connecting seats (501), and the bottom of the lower mold frame (503) is in contact with the top of the support column A (109); the upper mold frame (504) is fixedly arranged on the bottom of the other group of connecting seats (501), and the top of the upper mold frame (504) is in contact with the bottom of the support column B (204).

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