Press machine clamp tool

Abstract

The utility model relates to a press clamp tool, and belongs to the technical field of presses, the press clamp tool comprises a base, limiting strip holes are formed in the base, the limiting strip holes are radial, the center points of the limiting strip holes are located under a pressing head, and the single radial path of the limiting strip holes is a straight line; a disc and a positioning rod are arranged on the base, the disc is rotationally arranged at the bottom of the base, a rotating shaft is arranged in the vertical direction, the circle center of the disc and the center point of the limiting strip-shaped hole are located on the same vertical line, and a long-strip-shaped hole is formed in the disc from the center of the disc to the position close to the edge of the disc and stretches across the diameters of the multiple discs; the number of the positioning rods and the number of the long-strip-shaped holes correspond to the number of the radiation paths of the limiting strip-shaped holes, the single radiation paths of the positioning rods, the long-strip-shaped holes and the single radiation paths of the limiting strip-shaped holes are distributed in the vertical direction in a one-to-one correspondence mode, and the multi-directional synchronous limiting device has the effect of achieving multi-directional synchronous limiting of the workpiece to be machined.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a press machine, in particular to a press machine clamp tool. BACKGROUND

[0002] The press machine is a general-purpose press machine with exquisite structure, wide application and high production efficiency, and is widely applied to processes such as cutting, punching, blanking, bending, riveting and forming.

[0003] The press machine is divided into a manual press machine and a non-manual press machine, the manual press machine comprises a rack, a base, a clamping plate and a pressure head, the rack is fixed on the base, the clamping plate is slidably arranged on the base to clamp a workpiece, and the pressure head is slidably arranged on the rack and located directly above the workpiece and slides in the vertical direction to process the workpiece.

[0004] In actual use, because the shape of the workpiece is not unique, there are block-shaped, sheet-shaped and spherical workpieces, after the clamping plate clamps and positions the workpiece in a single direction, the spherical workpiece still has the possibility of displacement, and the workpiece is not stably positioned. INVENTION CONTENTS

[0005] In order to realize the effect of multi-directional synchronous limiting of the workpiece, the application provides a press machine clamp tool.

[0006] The press machine clamp tool provided by the application adopts the following technical scheme:

[0007] A press machine clamp tool comprises a base and a pressure head, a limiting strip hole is formed in the base, the limiting strip hole is radial and the center point is located directly below the pressure head, and the single radial path of the limiting strip hole is a straight line; a disc and a positioning rod are arranged on the base, the disc is rotationally arranged at the bottom of the base and the rotation axis is arranged in the vertical direction, the center of the disc and the center point of the limiting strip hole are located on the same vertical line, a long hole is formed in the disc and extends from the center of the disc to the edge of the disc and crosses multiple diameters of the disc; the positioning rod and the long hole are both provided with multiple and the number of the positioning rod and the long hole corresponds to the number of the radial paths of the limiting strip hole, the single radial path of the positioning rod, the long hole and the limiting strip hole is distributed one by one in the vertical direction, the positioning rod penetrates the radial path of the corresponding long hole and limiting strip hole in the vertical direction, and the disc rotates to drive all the positioning rods to slide towards or away from the center point of the limiting strip hole.

[0008] By adopting the technical scheme, the disc is rotated, the long hole on the disc is matched with the positioning rod, the disc rotation forces the positioning rod to move along the long hole, the long hole wall forces the positioning rod to move along the tangential direction of the disc and towards the center of the disc, the positioning rod can also move along the limiting strip hole, and finally the multiple positioning rods can simultaneously slide towards or away from the center point of the limiting strip hole. In this way, the irregularly shaped workpiece can be positioned from multiple directions, the defect of unstable single direction positioning of the clamping plate is compensated, displacement of the workpiece during machining is effectively prevented, the stability and reliability of positioning are improved, and the machining precision and product quality are improved.

[0009] Optionally, the base is provided with a first hand wheel and a first gear, the first hand wheel is rotationally arranged on the base, and one end of the first hand wheel is fixed with the center point of the first gear; a gear ring is fixedly sleeved on the circumferential outer wall of the disc, and the first gear is engaged with the gear ring.

[0010] By adopting the technical scheme, the operator can rotate the first hand wheel, and drive the disc to rotate through the engagement transmission of the first gear and the gear ring. Compared with directly manually rotating the disc, this way is more labor-saving and convenient, and the rotation angle of the disc can be more accurately controlled, and then the position of the positioning rod can be accurately adjusted to adapt to the positioning requirements of different workpieces.

[0011] Optionally, a groove is formed in the bottom of the base, and the disc and the gear are located in the groove, and the first hand wheel penetrates the top wall of the groove.

[0012] By adopting the technical scheme, the disc and the gear are accommodated in the groove, which can effectively avoid pollution and wear caused by external debris, dust and the like, and prolong the service life of the transmission components. At the same time, such a layout makes the overall appearance of the equipment more regular, and reduces the safety hazards such as collision that may be caused by exposed components.

[0013] Optionally, a plurality of pairs of limiting blocks with different wall thicknesses are arranged on the base, all the limiting blocks are stacked on the base, and a through hole for the positioning rod to penetrate is formed in each limiting block.

[0014] By adopting the technical scheme, when facing workpieces with different thicknesses and shapes, the limiting blocks can be flexibly combined, the limiting blocks with different wall thicknesses are inserted on the positioning rod, the distance between the positioning rod and the center of the limiting strip hole is changed, the accurate positioning of workpieces with different shapes is realized, and the universality and applicability of the fixture tooling are further improved.

[0015] Optionally, the machine frame is further provided with a top plate which is slidably arranged on the machine frame and slides in the vertical direction; one end of the top plate is slidably connected with the machine frame, and the other end is cantilevered and located above the base; a rack is slidably arranged on the top plate and slides in the vertical direction; and the bottom end of the rack is detachably connected with the pressing head.

[0016] By adopting the above technical scheme, the top plate can be flexibly slid up and down on the machine frame, and the distance between the pressing head and the base can be conveniently and quickly adjusted to adapt to workpieces of different heights. The detachable connection design of the rack and the pressing head facilitates quick replacement of the pressing head under different processing process requirements, thereby improving the processing flexibility and production efficiency of the equipment.

[0017] Optionally, the machine frame is provided with a screw rod and a sliding block, a sliding groove is formed in the machine frame in the vertical direction, one end of the sliding block is fixedly connected with the top plate, the other end of the sliding block is inserted into the sliding groove and slides along the length direction of the sliding groove, the screw rod is vertically arranged, the bottom end of the screw rod penetrates into the sliding groove and penetrates through the sliding block, and the screw rod is threadedly connected with the sliding block.

[0018] By adopting the above technical scheme, when the screw rod is rotated, the precise vertical movement of the top plate along the sliding groove can be realized by using the screw transmission principle. The sliding groove provides precise guidance for the sliding block, ensuring the stability and straightness of the movement of the top plate, so that the pressing position of the pressing head can be accurately controlled, the processing precision is improved, and the process requirements with high processing precision can be met.

[0019] Optionally, a gasket is fixed at the top end of the rack, a bolt penetrates through the gasket, the bolt is threadedly connected with the gasket, and the bolt is vertically arranged.

[0020] By adopting the above technical scheme, by screwing the bolt, the relative position between the gasket and the top plate can be finely adjusted, and the fine adjustment of the limit distance of the downward movement of the rack can be realized.

[0021] Optionally, the machine frame is provided with a second hand wheel and a second gear, the second hand wheel is rotationally arranged on the machine frame, one end of the second hand wheel is fixedly connected with the center of the second gear, and the second gear is engaged with the rack.

[0022] By adopting the above technical scheme, the operator can easily control the upward and downward movement of the rack and the pressing head by rotating the second hand wheel and by means of the meshing transmission of the second gear and the rack.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. Stable positioning and improved precision: the ingenious cooperation of the radial limiting strip hole, the disc and the positioning rod realizes multi-directional synchronous limiting, prevents displacement of the workpiece during processing, and greatly improves the positioning stability and processing precision;

[0025] 2. Easy to operate, strong adaptability: the first and second hand wheels are matched with gear transmission, which is labor-saving and convenient; different wall thickness limit blocks and detachable pressure heads can flexibly cope with various workpieces and processing techniques;

[0026] 3. Comprehensive protection, precise control: groove design protects transmission components, prolonging service life; screw, slider, gasket and bolt combination realize precise control of the position of the pressure head. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0028] Figure 2 is a partial structure sectional view of the top plate.

[0029] In the figure, 1, base; 11, limit bar hole; 12, first hand wheel; 13, first gear; 14, groove; 2, pressure head; 3, disc; 31, long hole; 32, gear ring; 4, positioning rod; 5, limit block; 51, through hole; 6, top plate; 61, rack; 62, second hand wheel; 63, second gear; 64, gasket; 65, bolt; 7, rack; 71, sliding groove; 72, slider; 73, screw. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying Figures 1-2 The present application will be further described in detail.

[0031] An embodiment of the present application discloses a press machine clamp tool.

[0032] Reference Figure 1 A press machine clamp tool includes a base 1, a pressure head 2, and a rack 7. The base 1 serves as the support foundation of the entire clamp tool, and the rack 7 is fixedly installed on the base 1. During actual processing, the workpiece to be processed is placed on the base 1, the pressure head 2 is located directly above the workpiece to be processed, and the workpiece is processed by moving in the vertical direction.

[0033] Reference Figure 1 and Figure 2The base 1 is provided with a plurality of limiting strip holes 11 which are distributed radially with the center point located directly below the pressure head 2, and each radial path is a straight line. In this embodiment, the limiting strip holes 11 are in the shape of a cross. The base 1 is provided with a disc 3 which is rotatably arranged at the bottom of the base 1. The rotating shaft of the disc 3 is in the vertical direction, and the center of the disc 3 is on the same vertical line as the center point of the limiting strip holes 11. The disc 3 is provided with a long strip hole 31 which is arranged from the center of the disc 3 to the edge of the disc 3 and spans a plurality of diameters of the disc 3. In this embodiment, the long strip hole 31 is in the shape of an arcuate strip hole. The base 1 is provided with a plurality of positioning rods 4 which are arranged in a vertical manner and pass through the corresponding long strip hole 31 and the radial path of the limiting strip hole 11. The three are in one-to-one correspondence in the vertical direction, that is, the positioning rod 4 is provided with four, and the long strip hole 31 is also provided with four. When the disc 3 rotates, the positioning rod 4 moves along the tangential direction of the disc 3 and slides towards or away from the center point of the limiting strip hole 11 under the constraint of the long strip hole 31, thereby achieving multi-directional limiting of the workpiece.

[0034] Referring to Figure 1 and Figure 2 The base 1 is provided with a plurality of limiting strip holes 11 which are distributed radially with the center point located directly below the pressure head 2, and each radial path is a straight line. In this embodiment, the limiting strip holes 11 are in the shape of a cross. The base 1 is provided with a disc 3 which is rotatably arranged at the bottom of the base 1. The rotating shaft of the disc 3 is in the vertical direction, and the center of the disc 3 is on the same vertical line as the center point of the limiting strip holes 11. The disc 3 is provided with a long strip hole 31 which is arranged from the center of the disc 3 to the edge of the disc 3 and spans a plurality of diameters of the disc 3. In this embodiment, the long strip hole 31 is in the shape of an arcuate strip hole. The base 1 is provided with a plurality of positioning rods 4 which are arranged in a vertical manner and pass through the corresponding long strip hole 31 and the radial path of the limiting strip hole 11. The three are in one-to-one correspondence in the vertical direction, that is, the positioning rod 4 is provided with four, and the long strip hole 31 is also provided with four. When the disc 3 rotates, the positioning rod 4 moves along the tangential direction of the disc 3 and slides towards or away from the center point of the limiting strip hole 11 under the constraint of the long strip hole 31, thereby achieving multi-directional limiting of the workpiece.

[0035] Referring to Figure 1 and Figure 2 The base 1 is provided with a plurality of limiting strip holes 11 which are distributed radially with the center point located directly below the pressure head 2, and each radial path is a straight line. In this embodiment, the limiting strip holes 11 are in the shape of a cross. The base 1 is provided with a disc 3 which is rotatably arranged at the bottom of the base 1. The rotating shaft of the disc 3 is in the vertical direction, and the center of the disc 3 is on the same vertical line as the center point of the limiting strip holes 11. The disc 3 is provided with a long strip hole 31 which is arranged from the center of the disc 3 to the edge of the disc 3 and spans a plurality of diameters of the disc 3. In this embodiment, the long strip hole 31 is in the shape of an arcuate strip hole. The base 1 is provided with a plurality of positioning rods 4 which are arranged in a vertical manner and pass through the corresponding long strip hole 31 and the radial path of the limiting strip hole 11. The three are in one-to-one correspondence in the vertical direction, that is, the positioning rod 4 is provided with four, and the long strip hole 31 is also provided with four. When the disc 3 rotates, the positioning rod 4 moves along the tangential direction of the disc 3 and slides towards or away from the center point of the limiting strip hole 11 under the constraint of the long strip hole 31, thereby achieving multi-directional limiting of the workpiece.

[0036] Referring to Figure 1 and Figure 2 Figure 1 Figure 2The top plate 6 is slidably arranged on the rack 7 and slides in the vertical direction. A sliding groove 71 is formed in the vertical direction on the rack 7. One end of a sliding block 72 is fixedly connected with the top plate 6, and the other end is inserted into the sliding groove 71 and slides along the length direction of the sliding groove 71. The screw rod 73 is arranged in a vertical manner, penetrates into the sliding groove 71 and penetrates through the sliding block 72, and is threadedly connected with the sliding block 72. The screw rod 73 is arranged in rotation relative to the rack 7. The end of the top plate 6 away from the rack 7 is cantilevered above the base 1. The top plate 6 is provided with a rack 61, a second gear 63 and a second hand wheel 62. The rack 61 is slidably arranged on the top plate 6 and slides in the vertical direction. The rack 61 penetrates through the top plate 6. The bottom end of the rack 61 is detachably connected with the pressure head 2. In the embodiment, the rack 61 is connected with the pressure head 2 in an insertion manner, and the insertion direction is arranged in the horizontal direction. The top plate 6 is hollow. A gasket 64 is fixed at the top end of the rack 61. A bolt 65 is arranged on the gasket 64 and is threadedly connected with the gasket 64. The bolt 65 is arranged in a vertical manner and penetrates through the gasket 64. The second hand wheel 62 is rotatably arranged on the rack 7. The second hand wheel 62 rotates relative to the rack 7. One end of the second hand wheel 62 penetrates into the inside of the top plate 6 and is fixed at the center of the second gear 63. The second gear 63 is engaged with the rack 61. An operator rotates the second hand wheel 62. The second gear 63 and the rack 61 are engaged to drive the rack 61 and the pressure head 2 to move up and down easily.

[0037] The implementation principle of the press machine clamp tool in the embodiment of the application is as follows: when positioning and processing a workpiece to be processed, first, according to the shape and size of the workpiece to be processed, the first hand wheel 12 is rotated, the disc 3 is driven to rotate through the transmission of the first gear 13 and the gear ring 32, and the positioning rod 4 is moved to a suitable position to limit the workpiece to be processed from multiple directions. Then, according to the height of the workpiece to be processed, the screw rod 73 is rotated to accurately adjust the height of the top plate 6, so that the pressure head 2 keeps a suitable distance from the workpiece to be processed. During the processing, an operator can rotate the second hand wheel 62 to control the pressure head 2 to move up and down, and perform processing operations such as cutting and punching on the workpiece to be processed.

[0038] The embodiments of the specific implementation manner are the preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A press fixture, comprising a base (1) and a press head (2), characterized in that: A limiting slot (11) is provided on the base (1). The limiting slot (11) is radial and its center point is located directly below the pressure head (2). The single radial path of the limiting slot (11) is a straight line. A disc (3) and a positioning rod (4) are provided on the base (1). The disc (3) is rotatably set at the bottom of the base (1) and the rotation axis is set in the vertical direction. The center of the disc (3) and the center point of the limiting slot (11) are located on the same vertical line. An elongated hole (31) is provided on the disc (3). The elongated hole (31) extends from the center of the disc (3) towards the center of the disc (2). 3) The edge is opened and spans the diameter of multiple disks (3); the positioning rod (4) and the elongated hole (31) are both provided in multiple ways and the number of the positions corresponds to the number of radial paths of the limiting strip hole (11). The single radial paths of the positioning rod (4), the elongated hole (31) and the limiting strip hole (11) are distributed one-to-one in the vertical direction. The positioning rod (4) passes through the corresponding elongated hole (31) and the limiting strip hole (11) in a vertical position. The disk (3) rotates to drive all the positioning rods (4) to slide towards or away from the center point of the limiting strip hole (11).

2. The press fixture according to claim 1, characterized in that: The base (1) is provided with a first handwheel (12) and a first gear (13). The first handwheel (12) is rotatably mounted on the base (1), and one end of the first handwheel (12) is fixed to the center point of the first gear (13). A gear ring (32) is fixed on the outer circumferential wall of the disc (3), and the first gear (13) meshes with the gear ring (32).

3. The press fixture according to claim 2, characterized in that: The base (1) has a groove (14) at the bottom, and the disc (3) and gear are located in the groove (14). The first handwheel (12) passes through the top wall of the groove (14).

4. The press fixture according to claim 1, characterized in that: The base (1) is provided with multiple pairs of limiting blocks (5) with different wall thicknesses. All the positioning blocks are stacked on the base (1), and each positioning block is provided with a through hole (51) for the positioning rod (4) to pass through.

5. A press fixture according to claim 1, characterized in that: It also includes a frame (7), on which a top plate (6) is slidably disposed, and the top plate (6) slides in the vertical direction; one end of the top plate (6) is slidably connected to the frame (7), and the other end is cantilevered and located above the base (1); a rack (61) is slidably disposed on the top plate (6), and the rack (61) slides in the vertical direction; the bottom end of the rack (61) is detachably connected to the pressure head (2).

6. A press fixture according to claim 5, characterized in that: The frame (7) is provided with a screw (73) and a slider (72). A groove (71) is provided on the frame (7) in the vertical direction. One end of the slider (72) is fixedly connected to the top plate (6), and the other end is inserted into the groove (71) and slides along the length of the groove (71). The screw (73) is set vertically, and the bottom end of the screw (73) passes through the groove (71) and through the slider (72). The screw (73) and the slider (72) are threadedly connected.

7. A press fixture according to claim 5, characterized in that: A washer (64) is fixed at the top of the rack (61), and a bolt (65) passes through the washer (64). The bolt (65) is threadedly connected to the washer (64), and the bolt (65) is set vertically.

8. A press fixture according to claim 5, characterized in that: The frame (7) is provided with a second handwheel (62) and a second gear (63). The second handwheel (62) is rotatably mounted on the frame (7). One end of the second handwheel (62) is fixed at the center of the second gear (63). The second gear (63) meshes with the rack (61).

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