CN213104003U

CN213104003U - Trimming device for hardware and plastic parts

Info

Publication number: CN213104003U
Application number: CN202020908289.8U
Authority: CN
Inventors: 舒向东; 王东
Original assignee: Sichuan Danfu Environmental Technology Co ltd
Current assignee: Sichuan Danfu Environmental Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-05-04
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a deburring device for five metals and working of plastics, which comprises a frame, hydraulic cylinder is installed at the frame top, hydraulic cylinder bottom fixedly connected with slider, the frame middle part is provided with the workstation, install the drive assembly of motion subassembly and drive motion subassembly on the workstation, install side cut mould assembly on the motion subassembly, fixedly connected with side cut die on the slider that side cut mould assembly top corresponds. The trimming device is simple in structure, can perform good trimming operation on thin-wall shell-shaped hardware and plastic parts, is wide in application range and high in trimming efficiency, and greatly reduces operation difficulty and production cost.

Description

Trimming device for hardware and plastic parts

Technical Field

The utility model relates to a deburring equipment technical field especially relates to a deburring device for five metals and working of plastics.

Background

In the process of producing the compressor shell, the compressor shell needs to be subjected to stretch forming, irregular burrs exist in the formed compressor shell, and in order to guarantee the use and the product quality of the next process, the stretching piece of the compressor shell needs to be subjected to edge cutting and trimming. The existing trimming and edging process generally adopts punching of a punch press, turning of a lathe or manual sanding of an abrasive belt. The trimming and trimming methods have the problems of complex process, low efficiency and the like, the mold is high in cost, large in size, time-consuming and labor-consuming in manufacturing, assembling and disassembling, and complex in maintenance, workers required to operate still need to have certain technical level, and certain potential safety hazards exist in the operation process. In addition, the sizes of the produced products are not always consistent, which brings inconvenience to each procedure of each later step. In addition, aiming at products with different materials and sizes, different trimming methods are required, for example, hardware and plastic parts cannot be treated by the same process, the treatment is complex, the efficiency is low, and the production cost is greatly improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a deburring device for five metals and working of plastics, the fine above-mentioned problem of having solved, its simple structure can carry out fine deburring operation to the five metals of thin wall shell form and the working of plastics homoenergetic, and application scope is wide, the deburring is efficient, great reduction the operation degree of difficulty and manufacturing cost.

The technical scheme of the utility model a deburring device for five metals and working of plastics, which comprises a frame, hydraulic cylinder is installed at the frame top, hydraulic cylinder bottom fixedly connected with slider, the frame middle part is provided with the workstation, install the drive assembly of motion subassembly and drive motion subassembly on the workstation, install side cut mould subassembly on the motion subassembly, fixedly connected with side cut die block on the slider that side cut mould subassembly top corresponds.

Further, side cut mould assembly includes locating piece top cap, locating piece bottom plate, lower sword mouth board and locating piece mounting panel from top to bottom in proper order, locating piece mounting panel middle part is provided with the location axle, lower sword mouth board cup joints epaxially in the location, the epaxial end fixedly connected with lock nut in the location, the locating piece bottom plate is located lock nut below and cup joints epaxially in the location, the locating piece top cap passes through screw fixed connection with the locating piece bottom plate.

Furthermore, a spring hole is formed in the lower knife-edge plate, a compression spring is placed in the spring hole, a steel ball is placed at the top end of the compression spring, a groove matched with the steel ball is formed in the lower end face of the positioning block bottom plate, and the steel ball is pressed against the groove in the lower end face of the positioning block bottom plate under the action force of the compression spring.

Furthermore, a limiting column is arranged on the positioning block mounting plate, the top surface of the limiting column is 0.1mm-0.3mm higher than the top surface of the lower cutting edge plate, and the distance between the lower end surface of the positioning block bottom plate and the top surface of the lower cutting edge plate is 0.1mm-0.5 mm.

Furthermore, the positioning shaft is a polygonal positioning shaft, so that the lower edge plate sleeved on the positioning shaft is prevented from rotating around the positioning shaft in the circumferential direction.

Furthermore, the motion assembly comprises an eccentric sleeve, the upper end of the eccentric sleeve is a small end, the lower end of the eccentric sleeve is a large end, the small end of the eccentric sleeve is inserted into an upper sliding plate, the eccentric sleeve is in sliding fit with the upper sliding plate, the large end of the eccentric sleeve is inserted into an inner sliding plate, the eccentric sleeve is in sliding fit with the inner sliding plate, the inner sliding plate is inserted into the lower sliding plate, the inner sliding plate is in sliding connection with the lower sliding plate, the upper sliding plate is placed on the lower sliding plate through a guide key, the upper sliding plate is in longitudinal sliding fit with the lower sliding plate, and the lower sliding plate is in transverse sliding connection with the workbench through a guide plate.

Furthermore, the positioning block mounting plate is fixedly connected with the upper sliding plate.

Furthermore, the driving assembly comprises a crankshaft with a short shaft at the upper end and a long shaft at the lower end, the short shaft end of the crankshaft is rotatably connected with the eccentric sleeve through a roller, the long shaft end of the crankshaft is fixed on the rack through a bearing, and the long shaft end of the crankshaft is in power connection with the motor or the hydraulic motor.

Furthermore, still include the locating pin, the lift cylinder is installed to the locating pin bottom, be provided with the locating hole with the locating pin adaptation on the last movable plate.

Furthermore, the sliding block is connected with the rack in a sliding mode through a sliding rail.

The utility model has the advantages that:

1. the utility model is mainly used for trimming the thin-wall shell-shaped metal or plastic part, adopts the trimming die component and the trimming female die to be mutually matched, cuts and trims irregular burrs, has flat cut, no burrs, good product consistency and wide application range;

2. the moving component drives the trimming die component to move according to a reasonable movement track by adopting a machine tool linkage principle, so that the trimming die component and the trimming female die are staggered, and a product to be trimmed is sheared and trimmed, the existing mode of punching edges by a punch, turning edges by a lathe or manually polishing and trimming edges by adopting an abrasive belt is overturned, the trimming efficiency is improved, and meanwhile, the operation difficulty and the production cost are greatly reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the middle motion assembly, drive assembly and trimming die assembly of the present invention;

fig. 3 is an exploded view of the middle trimming die assembly of the present invention;

fig. 4 is a schematic sectional structure view of the middle trimming die assembly of the present invention;

FIG. 5 is a schematic view showing the relationship between the initial point of the crankshaft roller and the position of the eccentric sleeve;

in the figure: 1. a frame; 2. a hydraulic cylinder; 3. a slider; 31. a slide rail; 4. a work table; 5. a motion assembly; 51. an eccentric sleeve; 52. an upper sliding plate; 53. an inner sliding plate; 54. a lower sliding plate; 55. a guide key; 56. a guide plate; 57. positioning holes; 6. a drive assembly; 61. a crankshaft; 62. a roller; 7. a trimming die assembly; 71. a top cover of the positioning block; 72. a positioning block bottom plate; 73. a lower cutting edge plate; 74. a positioning block mounting plate; 75. positioning the shaft; 76. locking the nut; 77. a compression spring; 78. Steel balls; 79. a groove; 710. a limiting column; 8. trimming the female die; 9. positioning pins; 10. and a lifting cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 5, the utility model provides a deburring device for five metals and working of plastics, which comprises a frame 1, hydraulic cylinder 2 is installed at frame 1 top, 2 bottom fixedly connected with sliders 3 of hydraulic cylinder, 1 middle part of frame is provided with workstation 4, install the drive assembly 6 of motion subassembly 5 and drive motion subassembly 5 on the workstation 4, install side cut mould subassembly 7 on the motion subassembly 5, fixedly connected with side cut die 8 on the slider 3 that side cut mould subassembly 7 top corresponds. The sliding block 3 is connected with the frame 1 in a sliding way through a sliding rail 31.

Side cut mould component 7 includes locating piece top cap 71, locating piece bottom plate 72, lower knife edge board 73 and locating piece mounting panel 74 from top to bottom in proper order, locating piece mounting panel 74 middle part is provided with location axle 75, lower knife edge board 73 cup joints on location axle 75, location axle 75 upper end fixedly connected with lock nut 76, locating piece bottom plate 72 is located lock nut 76 below and cup joints on location axle 75, locating piece top cap 71 passes through screw fixed connection with locating piece bottom plate 72. The lower knife edge plate 73 is provided with a spring hole, a compression spring 77 is placed in the spring hole, a steel ball 78 is placed at the top end of the compression spring 77, a groove 79 matched with the steel ball 78 is formed in the lower end face of the positioning block bottom plate 72, and the steel ball 78 is propped against the groove 79 in the lower end face of the positioning block bottom plate 72 under the acting force of the compression spring 77.

The positioning block mounting plate 74 is provided with a limiting column 710, the top surface of the limiting column 710 is 0.1mm-0.3mm higher than the top surface of the lower knife-edge plate 73, and the distance between the lower end surface of the positioning block bottom plate 72 and the top surface of the lower knife-edge plate 73 is 0.1mm-0.5 mm. The positioning shaft 75 is a polygonal positioning shaft 75, so that the lower edge plate 73 sleeved on the positioning shaft 75 is prevented from rotating around the positioning shaft 75 in the circumferential direction. That is, the positioning block bottom plate 72 can move up and down on the positioning shaft 75, so that a floating gap of 0.1mm-0.5mm is left between the positioning block bottom plate 72 and the lower knife-edge plate 73 in the vertical direction.

The moving assembly 5 comprises an eccentric sleeve 51 with a small end at the upper end and a large end at the lower end, the small end of the eccentric sleeve 51 is inserted and connected with an upper sliding plate 52, the eccentric sleeve 51 is in sliding fit with the upper sliding plate 52, the large end of the eccentric sleeve 51 is inserted into an inner sliding plate 53, the eccentric sleeve 51 is in sliding fit with the inner sliding plate 53, the inner sliding plate 53 is inserted into a lower sliding plate 54, the inner sliding plate 53 is in sliding connection with the lower sliding plate 54, the upper sliding plate 52 is placed on the lower sliding plate 54 through a guide key 55, the upper sliding plate 52 is in longitudinal sliding fit with the lower sliding plate 54, and the lower sliding plate 54 is in transverse sliding connection with the workbench 4 through a guide plate 56. The positioning block mounting plate 74 is fixedly connected to the upper sliding plate 52.

The outer circumference of the eccentric sleeve 51 is fitted into the inner slide plate 53, the eccentric sleeve 51 is rotatably fitted, the inner slide plate 53 is fitted into the lower slide plate 54, and the inner slide plate 53 is slidably fitted in the lower slide plate 54 in the lateral direction.

The driving assembly 6 comprises a crankshaft 61 with a short shaft at the upper end and a long shaft at the lower end, the short shaft end of the crankshaft 61 is rotatably connected with the eccentric sleeve 51 through a roller 62, the long shaft end of the crankshaft 61 is fixed on the frame 1 through a bearing, and the long shaft end of the crankshaft 61 is in power connection with a motor or a hydraulic motor. That is, the inner hole of the roller 62 is matched with the short shaft part of the crankshaft 61, and the outer circle part of the roller 62 is matched with the inner cavity of the eccentric sleeve 51.

The positioning device further comprises a positioning pin 9, a lifting cylinder is mounted at the bottom of the positioning pin 9, and a positioning hole 57 matched with the positioning pin 9 is formed in the upper sliding plate 52.

Specifically, the long axis part of the crankshaft 61 is connected with a hydraulic motor or an electric motor, the short axis end of the crankshaft 61 is provided with a roller 62 for reducing friction, the lower sliding plate 54 is directly placed on the workbench 4, the two side edges are limited through the guide plate 56, so that the lower sliding plate can only slide left and right, the inner sliding plate 53 is placed in the lower sliding plate 54, the inner sliding plate 53 can slide left and right in the lower sliding plate 54, the large end of the eccentric sleeve 51 is installed in the inner sliding plate 53 and can rotate, the small end of the eccentric sleeve 51 is inserted into the upper sliding plate 52 and can rotate, and the guide key 55 penetrates through the upper sliding plate 52 and is fixed on the lower sliding plate 54, so that the upper sliding plate 52 can only move longitudinally on the lower sliding plate 54. In fig. 4, a is a part of the product to be cut off.

In fig. 5, b is a crankshaft short axis outer circle contour line, c is a crankshaft long axis contour line, d is an eccentric sleeve inner contour line, e is an eccentric sleeve outer circle, f is a crankshaft long axis central point, and g is a crankshaft short axis central point. After the machine tool is started, the crankshaft 61 rotates clockwise, the short shaft of the crankshaft 61 rotates clockwise around the center point of the long shaft of the crankshaft 61, the roller 62 for reducing friction is arranged on the short shaft of the crankshaft 61, as shown in fig. 5, the starting position of the center point of the short shaft of the crankshaft 61 is in the 45-degree direction at the upper right corner, when the crankshaft 61 rotates clockwise, the roller 62 mounted on the short shaft of the crankshaft 61 pushes the eccentric sleeve 51 to move horizontally to the right, the large end of the eccentric sleeve 51 is mounted in the inner sliding plate 53, the inner sliding plate 53 acts to stabilize the eccentric sleeve 51, since the small end of the eccentric sleeve 51 is arranged in the upper sliding plate 52, the eccentric sleeve 51 can drive the upper sliding plate 52 to move horizontally to the right while moving horizontally to the right, when the highest eccentric point of the crankshaft 61 just rotates to the rightmost end, the outline of the excircle of the roller 62 arranged on the short shaft of the crankshaft 61 just matches with the inner curve of the eccentric sleeve 51, and when the crankshaft 61 rotates to the rightmost end, the state is that; at this time, the center of the long axis of the crankshaft 61 coincides with the center of the large end of the eccentric sleeve 51, the center of the short axis of the crankshaft 61 coincides with the center of the small end of the eccentric sleeve 51, the roller 62 on the short axis of the crankshaft 61 is already clamped in the groove 79 of the eccentric sleeve 51, the crankshaft 61 continues to rotate to drive the eccentric sleeve 51 to do eccentric rotary motion together, the upper sliding plate 52 installed at the small end of the eccentric sleeve 51 also does eccentric motion under the drive of the eccentric sleeve 51, the eccentric distance is consistent with the eccentric distance of the crankshaft 61, because the upper sliding plate 52 and the lower sliding plate 54 can only do circular track movement under the constraint of the guide key 55 and the guide plate 56 and do not,

when the product to be trimmed is placed on the top cover 71 of the positioning block, the part to be cut exceeds the bottom surface of the bottom plate 72 of the positioning block and covers the periphery of the lower knife-edge plate 73, the trimming concave die 8 moves downwards under the action of the slide block 3 of the hydraulic press and presses the top of the limiting column 710, the inner cavity of the trimming concave die 8 wraps the product, a trimming gap of 0.1-0.3 mm exists between the bottom plane of the trimming concave die 8 and the top surface of the lower knife-edge plate 73 because the top surface of the limiting column 710 is 0.1-0.3 mm higher than the top surface of the lower knife-edge plate 73, after the trimming concave die 8 presses the top surface of the limiting column 710, the crankshaft 61 rotates under the drive of the hydraulic motor or the electric motor and drives the motion component 5 to move according to a designed route, because the trimming concave die 8 is rigidly connected with the slide block 3, only can move up and down, and the trimming concave die 8 always presses the limiting column 710, the product positioning block trimming die assembly 7 and the part of the product to be reserved are sleeved in the trimming female die 8 all the time and cannot move, the lower cutting edge plate 73 is in rigid connection with the moving assembly 5 and can only move along with the moving assembly 5 according to a designed route at the moment, h is the starting point of the moving track of the lower cutting edge plate, and m is the moving track of the lower cutting edge plate. The cutting die 8 is moved in parallel for a certain distance to intersect with the edge cutting die, the part of the product needing to be cut is cut into an opening, then the opening is rotated, and the whole edge of the product is cut off by taking the cut opening as a starting point and performing eccentric rotation. n is the crankshaft short axis center, p is the crankshaft rotation motion track, and q is the crankshaft long axis (fixed end) center. When the crankshaft 61 rotates 305 degrees and then the crankshaft 61 returns to the initial position at 45 degrees of reverse rotation of the crankshaft 61, the eccentric sleeve 51 does not rotate reversely with the crankshaft 61 when the crankshaft 61 rotates 45 degrees due to the unique inner cavity shape of the eccentric sleeve 51.

That is, the crankshaft 61 rotates clockwise, the outer circle line of the short shaft of the crankshaft 61 rotates around the center point of the long shaft of the crankshaft 61, the outer circle line of the short shaft of the crankshaft 61 pushes the straight line part of the inner circle line of the eccentric sleeve 51 to make the eccentric sleeve 51 move horizontally to the right, the upper sliding plate 52 installed at the small end of the eccentric sleeve 51 and the parts connected with the upper sliding plate 52 move horizontally to the right, when the crankshaft 61 rotates eccentrically for 45 degrees (at this time, the highest point of the short shaft of the crankshaft 61 is just aligned with the rightmost end), the outer circle line of the short shaft of the crankshaft 61 is just clamped in the groove 79 of the eccentric sleeve 51, at this time, the crankshaft 61 completely coincides with the two center points of the eccentric sleeve 51, the crankshaft 61 continues to rotate to drive the eccentric sleeve 51 to rotate together, at this time, the eccentric sleeve 51 changes from the previous horizontal movement, however, the eccentric sleeve 51, the upper sliding plate 52 connected with the eccentric sleeve 51, the lower cutting edge plate 73 and other parts are stopped at the rightmost end, the crankshaft 61 rotates reversely by 45 degrees to the initial position, the short shaft profile of the crankshaft 61 is separated from the groove 79 in the eccentric sleeve 51 in the process of reversing the crankshaft 61, the crankshaft 61 does not drive the eccentric sleeve 51 to rotate reversely when reversing the crankshaft, and finally the positioning pin 9 penetrates through the machine tool workbench 4 to be inserted into the positioning hole 57 of the upper sliding plate 52 under the pushing of the lifting cylinder to reset the whole device.

The utility model discloses the device has utilized the mould dislocation and has combined the lathe linkage principle, will cut a mouthful with the unnecessary part of casing that needs got rid of earlier, and what a little level was cut away like the scissors again once only amputates. The utility model is mainly used for trimming the thin-wall shell-shaped metal or plastic piece, adopts the trimming die component 7 and the trimming female die 8 to be matched with each other, cuts and trims irregular rough edges, has smooth cut, no burr, good product consistency and wide application range; the moving component 5 drives the trimming die component 7 to move according to a reasonable movement track by adopting a machine tool linkage principle, so that the trimming die component 7 and the trimming female die 8 are staggered, and the product to be trimmed is cut and trimmed, the existing mode of trimming by adopting a punch press, turning the edge by a lathe or manually polishing and trimming by adopting an abrasive belt is overturned, the trimming efficiency is improved, and the operation difficulty and the production cost are greatly reduced.

Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims

1. The utility model provides a deburring device for five metals and working of plastics which characterized in that: including frame (1), hydraulic cylinder (2) are installed at frame (1) top, hydraulic cylinder (2) bottom fixedly connected with slider (3), frame (1) middle part is provided with workstation (4), install drive assembly (6) of motion subassembly (5) and driving motion subassembly (5) on workstation (4), install side cut mould subassembly (7) on motion subassembly (5), fixedly connected with side cut die (8) are gone up in slider (3) that side cut mould subassembly (7) top corresponds.

2. The trimming device for hardware and plastic parts according to claim 1, wherein: side cut mould subassembly (7) from top to bottom includes locating piece top cap (71), locating piece bottom plate (72), lower knife edge board (73) and locating piece mounting panel (74) in proper order, locating piece mounting panel (74) middle part is provided with location axle (75), lower knife edge board (73) cup joints on location axle (75), location axle (75) upper end fixedly connected with lock nut (76), locating piece bottom plate (72) are located lock nut (76) below and cup joint on location axle (75), locating piece top cap (71) and locating piece bottom plate (72) pass through screw fixed connection.

3. The trimming device for hardware and plastic parts according to claim 2, wherein: the lower knife edge plate (73) is provided with a spring hole, a compression spring (77) is placed in the spring hole, a steel ball (78) is placed at the top end of the compression spring (77), a groove (79) matched with the steel ball (78) is formed in the lower end face of the positioning block bottom plate (72), and the steel ball (78) is propped against the groove (79) in the lower end face of the positioning block bottom plate (72) under the action force of the compression spring (77).

4. The trimming device for hardware and plastic parts according to claim 3, wherein: the positioning block mounting plate (74) is provided with a limiting column (710), the top surface of the limiting column (710) is 0.1-0.3 mm higher than the top surface of the lower knife-edge plate (73), and the distance between the lower end surface of the positioning block bottom plate (72) and the top surface of the lower knife-edge plate (73) is 0.1-0.5 mm.

5. The trimming device for hardware and plastic parts according to claim 2, wherein: the positioning shaft (75) is a polygonal positioning shaft (75), and a lower knife edge plate (73) sleeved on the positioning shaft (75) is prevented from rotating around the positioning shaft (75) in the circumferential direction.

6. The trimming device for hardware and plastic parts according to claim 2, wherein: the moving assembly (5) comprises an eccentric sleeve (51) with a small end at the upper end and a large end at the lower end, the small end of the eccentric sleeve (51) is connected with an upper sliding plate (52) in an inserted mode, the eccentric sleeve (51) is in sliding fit with the upper sliding plate (52), the large end of the eccentric sleeve (51) is inserted into an inner sliding plate (53), the eccentric sleeve (51) is in sliding fit with the inner sliding plate (53), the inner sliding plate (53) is inserted into a lower sliding plate (54), the inner sliding plate (53) is in sliding connection with the lower sliding plate (54), the upper sliding plate (52) is placed on the lower sliding plate (54) through a guide key (55), the upper sliding plate (52) is in longitudinal sliding fit with the lower sliding plate (54), and the lower sliding plate (54) is in transverse sliding connection with the workbench (4) through a guide plate (56).

7. The trimming device for hardware and plastic parts according to claim 6, wherein: the positioning block mounting plate (74) is fixedly connected with the upper sliding plate (52).

8. The trimming device for hardware and plastic parts according to claim 6, wherein: the driving assembly (6) comprises a crankshaft (61) with a short shaft at the upper end and a long shaft at the lower end, the short shaft end of the crankshaft (61) is rotatably connected with the eccentric sleeve (51) through a roller (62), the long shaft end of the crankshaft (61) is fixed on the rack (1) through a bearing, and the long shaft end of the crankshaft (61) is in power connection with a motor or a hydraulic motor.

9. The trimming device for hardware and plastic parts according to claim 6, wherein: still include locating pin (9), lift cylinder is installed to locating pin (9) bottom, be provided with locating hole (57) with locating pin (9) adaptation on upper sliding plate (52).

10. The trimming device for hardware and plastic parts according to claim 1, wherein: the sliding block (3) is connected with the rack (1) in a sliding mode through a sliding rail (31).