Workpiece pressing device

Abstract

The utility model provides a workpiece pressing device. The workpiece pressing device comprises a device main frame, a workpiece containing frame, a driving assembly and a pressing assembly. The device main frame comprises a fixing plate and two first connecting pieces, and the two first connecting pieces are installed on one side of the fixing plate correspondingly. The workpiece placing frame can reciprocate between a first position and a second position in the preset direction through the driving assembly, the workpiece placing frame comprises a supporting plate and two second connecting pieces, the supporting plate and the fixing plate are arranged in parallel, and the two second connecting pieces are installed on the side, away from the fixing plate, of the supporting plate correspondingly; the pressing assembly comprises two pressing pieces, each pressing piece is provided with a pressing face, and the two pressing pieces are hinged to the corresponding first connecting piece and the corresponding second connecting piece respectively. Wherein the preset direction is the direction perpendicular to the fixing plate, when the workpiece containing frame is located at the first position, the pressing assembly is in an unpressed state, and when the workpiece containing frame is located at the second position, the pressing assembly is in a pressed state, and the pressing face is attached to the to-be-machined workpiece.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of mechanical production and processing, and particularly relates to a workpiece pressing device. BACKGROUND

[0002] Mechanical production and processing refers to a process of changing the shape size or performance of a workpiece through a mechanical device. According to the difference in processing mode, it can be divided into cutting processing and pressure processing, and is an important part of modern industrial production.

[0003] In the process of mechanical processing of a workpiece to be processed by a mechanical processing device, a corresponding clamp is often used to position and fix the workpiece to be processed, so as to prevent the position of the workpiece from shifting during processing, thereby causing the workpiece to be scrapped.

[0004] Therefore, before mechanical processing, it is particularly important to design a corresponding clamp for some workpieces to meet the corresponding processing technology and ensure the quality of the finished workpiece. CONTENT OF THE INVENTION

[0005] One of the technical problems to be solved by the present disclosure is how to press and fix a columnar workpiece to be processed during mechanical production and processing.

[0006] To solve the above technical problem, the present disclosure provides a workpiece pressing device for pressing a columnar workpiece to be processed, which comprises a device main frame, a workpiece placing frame, a driving assembly and a pressing assembly. The device main frame comprises a fixed plate and two first connecting pieces, and the two first connecting pieces are respectively installed on one side of the fixed plate to form a first space. The workpiece placing frame is built-in the first space and can reciprocate between a first position and a second position in a preset direction through the driving assembly, and comprises a support plate and two second connecting pieces. The support plate is arranged in parallel with the fixed plate, and the two second connecting pieces are respectively installed on one side of the support plate away from the fixed plate to form a second space with an opening. The workpiece to be processed can be placed in the second space through the opening. The pressing assembly comprises two pressing pieces, each of which has a pressing surface. The first connecting piece, the second connecting piece and the pressing piece are one-to-one corresponding, and the two pressing pieces are arranged at the opening and are respectively hinged to the corresponding first connecting piece and second connecting piece. The preset direction is perpendicular to the direction of the fixed plate. When the workpiece placing frame is located at the first position, the pressing assembly is in an unpressing state, and when the workpiece placing frame is located at the second position, the pressing assembly is in a pressing state, and the pressing surface is in contact with the workpiece to be processed.

[0007] In some embodiments of the present disclosure, the driving assembly is a cylinder assembly, a cylinder body of the cylinder assembly is mounted on a side of the support plate facing away from the second space, and a push rod of the cylinder assembly is mounted on the fixed plate; when the push rod is in an extended state, the workpiece placing rack is located at the first position, and the pressing assembly is in an un-pressed state; when the push rod is in a retracted state, the workpiece placing rack is located at the second position, and the pressing assembly is in a pressed state, and the pressing surface is attached to a surface of the workpiece to be processed facing away from the support plate.

[0008] In some embodiments of the present disclosure, the first connecting piece is plate-shaped or strip-shaped and extends in a preset direction towards a direction away from the fixed plate; the second connecting piece is plate-shaped or strip-shaped and extends in the preset direction towards a direction away from the support plate; the first connecting piece and the second connecting piece are respectively matched with the size of the workpiece to be processed in the preset direction.

[0009] In some embodiments of the present disclosure, the pressing piece is strip-shaped and has a first hinge position and a second hinge position, the first hinge position is located at an end of the pressing piece away from the opening in the extension direction of the pressing piece, and the second hinge position is located at a middle part of the pressing piece; an end of each first connecting piece away from the fixed plate in the extension direction is hinged to the corresponding first hinge position; an end of each second connecting piece away from the support plate in the extension direction is a first end, and each first end is hinged to the second hinge position.

[0010] In some embodiments of the present disclosure, the pressing piece further comprises two hook-shaped pieces, the two hook-shaped pieces correspond one-to-one to the two pressing pieces, each hook-shaped piece has a hinged end and a hooked end, the hinged end is hinged to the corresponding second hinge position, and the hooked end is hooked to the corresponding first end.

[0011] In some embodiments of the present disclosure, each first end is provided with a hinge seat, and each hooked end is hooked to the corresponding hinge seat.

[0012] In some embodiments of the present disclosure, the distance between the two second connecting pieces is matched with the size of the workpiece to be processed.

[0013] In some embodiments of the present disclosure, an end of each second connecting piece close to the support plate is a second end, the second end is connected and penetrates through the support plate, and each second end is respectively provided with a buffer pad.

[0014] In some embodiments of the present disclosure, the device main frame further comprises at least two guide rods, the two guide rods are arranged in parallel and respectively extend in the preset direction, an end of each guide rod close to the fixed plate is mounted on the fixed plate, and each guide rod penetrates through the support plate, so that the support plate can reciprocate between the first position and the second position in the preset direction relative to the fixed plate.

[0015] In some embodiments of the embodiments of the present disclosure, a protective pad or a sprayed protective coating is arranged on the pressing surface.

[0016] Through the above technical solution, the pressing assembly in the workpiece pressing device provided by the present disclosure can place the workpiece to be processed into the second space of the workpiece placing rack when the pressing assembly is in the unpressing state, i.e., the workpiece placing rack is in the first position. When the workpiece to be processed is placed, the workpiece placing rack moves from the first position to the second position in the preset direction under the driving action of the driving assembly. At this time, under the action of the hinge connection of the first connecting piece, the second connecting piece and the pressing piece, the pressing surface of the pressing piece is attached to the surface of the workpiece to be processed, so that the pressing assembly is in the pressing state. After the processing is completed, the workpiece placing rack moves from the second position to the first position under the action of the driving assembly. Under the action of the hinge connection of the first connecting piece, the second connecting piece and the pressing piece, the pressing surface of the pressing piece is away from the surface of the workpiece, so that the pressing assembly returns to the unpressing state. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structural schematic view of the workpiece pressing device in the unpressing state according to an embodiment of the present disclosure;

[0019] Figure 2 is a structural schematic view of the workpiece pressing device in the pressing state according to an embodiment of the present disclosure.

[0020] MARKED FOR EXPLANATION:

[0021] 1, workpiece to be processed; 2, fixed plate; 3, first connecting piece; 4, first space; 5, cylinder assembly; 6, support plate; 7, second connecting piece; 701, hinge seat; 8, second space; 9, pressing piece; 901, pressing surface; 902, first hinge connection; 903, second hinge connection; 10, hook-shaped piece; 11, buffer pad; 12, guide rod. DETAILED DESCRIPTION

[0022] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The following detailed description of the examples and the accompanying drawings are provided for the purpose of illustrating the principles of the present disclosure, and are not intended to limit the scope of the present disclosure, which can be embodied in a variety of different forms, not limited to the specific examples disclosed herein, but include all technical solutions falling within the scope of the claims.

[0023] The present disclosure provides these examples in order to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0024] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0026] It should also be noted that, in the description of the present disclosure, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0027] All terms used in the present disclosure have the same meaning as understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined herein.

[0028] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification where appropriate.

[0029] Embodiments

[0030] Reference is made to the accompanying drawings that form a part of this disclosure Figure 1 and the drawings that form a part hereof, wherein like reference numerals refer to like parts throughout the several views. Figure 2 Embodiments of the present disclosure provide a workpiece pressing device for pressing a columnar workpiece 1, which comprises a device main frame, a workpiece placing frame, a driving assembly and a pressing assembly. The device main frame comprises a fixed plate 2 and two first connecting members 3, the two first connecting members 3 are respectively installed on one side of the fixed plate 2 to form a first space 4. The workpiece placing frame is built-in the first space 4 and can reciprocate between a first position and a second position in a preset direction through the driving assembly, which comprises a support plate 6 and two second connecting members 7. The support plate 6 is arranged in parallel with the fixed plate 2, and the two second connecting members 7 are respectively installed on one side of the support plate 6 away from the fixed plate 2 to form a second space 8 with an opening. The columnar workpiece 1 can be placed in the second space 8 through the opening. The pressing assembly comprises two pressing members 9, each of which has a pressing surface 901. The first connecting member 3, the second connecting member 7 and the pressing member 9 are one-to-one corresponding. The two pressing members 9 are arranged at the opening and are respectively hinged to the corresponding first connecting member 3 and second connecting member 7. The preset direction is perpendicular to the fixed plate 2. When the workpiece placing frame is located at the first position, the pressing assembly is in an un-pressing state. When the workpiece placing frame is located at the second position, the pressing assembly is in a pressing state, and the pressing surface 901 is in contact with the columnar workpiece 1.

[0031] Specifically, the device main frame is enclosed by the fixed plate 2 and two first connecting pieces 3, and a first space 4 can be formed inside the enclosure. The workpiece placing frame is enclosed by the support plate 6 and the second connecting piece 7 and is entirely built in the first space 4. A second space 8 formed by the enclosure between the support plate 6 and the second connecting piece 7 is used for placing the workpiece 1 to be processed. The device main frame and the workpiece placing frame are connected through a driving assembly. Under the driving action of the driving assembly, the workpiece placing frame can be reciprocally moved in the first space 4 relative to the fixed plate 2 in a direction perpendicular to the fixed plate 2 between the first position and the second position. The two pressing pieces 9 in the pressing assembly are respectively hinged to the corresponding first connecting piece 3 and the second connecting piece 7, so as to ensure that, during the movement of the workpiece placing frame, the pressing surface 901 of the pressing piece 9 can be attached to or away from the surface of the workpiece 1 to be processed under the hinging action.

[0032] According to the above list, the pressing assembly in the workpiece pressing device can place the workpiece 1 to be processed in the second space 8 of the workpiece placing frame through other machinery or manually when the pressing assembly is in the unpressing state, i.e., the workpiece placing frame is in the first position. When the workpiece 1 to be processed is placed, the workpiece placing frame will be moved from the first position to the second position in a preset direction under the driving action of the driving assembly. At this time, under the hinging action of the first connecting piece 3, the second connecting piece 7, and the pressing piece 9, the pressing surface 901 of the pressing piece 9 is attached to the surface of the workpiece 1 to be processed, so that the pressing assembly is in the pressing state. After the processing is completed, the workpiece placing frame will be moved from the second position to the first position under the action of the driving assembly. Under the hinging action of the first connecting piece 3, the second connecting piece 7, and the pressing piece 9, the pressing surface 901 of the pressing piece 9 is away from the surface of the workpiece, so that the pressing assembly returns to the unpressing state.

[0033] In some embodiments, reference is made to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , the workpiece pressing device provided by the embodiments of the present application, in the specific implementation, the driving assembly is a cylinder assembly 5, the cylinder body of the cylinder assembly 5 is installed on the side of the support plate 6 away from the second space 8, and the push rod of the cylinder assembly 5 is installed on the fixed plate 2. When the push rod is in the extended state, the workpiece placing frame is located at the first position, and the pressing assembly is in the unpressing state. When the push rod is in the retracted state, the workpiece placing frame is located at the second position, and the pressing assembly is in the pressing state, and the pressing surface 901 is attached to the surface of the workpiece 1 to be processed away from the support plate 6.

[0034] Specifically, in order to realize the driving effect of the driving assembly on the workpiece placing rack, the utility model adopts the technical scheme that the driving assembly adopts a cylinder assembly 5, the cylinder body of the cylinder assembly 5 is installed on the side of the support plate 6 of the workpiece placing rack away from the second space 8, and the push rod is connected with the fixed plate 2. When the push rod of the cylinder assembly 5 is in the extended state, the workpiece placing rack is located at the first position, and the pressing assembly is in the unpressing state; when the push rod of the cylinder assembly 5 is in the retracted state, the workpiece placing rack is located at the second position, and the pressing assembly is in the pressing state, and the pressing surface 901 is attached to the surface of the workpiece 1 away from the support plate 6.

[0035] In some embodiments, with reference to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , the workpiece pressing device provided by the embodiment of the utility model, in the specific implementation, the first connecting piece 3 is plate-shaped or strip-shaped, and extends in the preset direction towards the direction away from the fixed plate 2; the second connecting piece 7 is plate-shaped or strip-shaped, and extends in the preset direction towards the direction away from the support plate 6; the first connecting piece 3 and the second connecting piece 7 respectively match the size of the workpiece 1 in the preset direction.

[0036] Specifically, in order to realize the pressing of the pressing piece 9 on the workpiece 1 and prevent the workpiece 1 from moving in the preset direction during processing, the utility model adopts the technical scheme that the size of the first connecting piece 3 and the second connecting piece 7 in the preset direction matches the size of the workpiece 1, so as to ensure that when the workpiece placing rack moves to the second position, i.e. the pressing assembly is in the pressing state, the pressing surface 901 of the pressing piece 9 can be attached to the surface of the workpiece 1.

[0037] In some embodiments, with reference to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , the workpiece pressing device provided by the embodiment of the utility model, in the specific implementation, the pressing piece 9 is strip-shaped, and has a first hinge 902 and a second hinge 903; the first hinge 902 is located at the end of the pressing piece 9 away from the opening in the extension direction, and the second hinge 903 is located at the middle part of the pressing piece 9; the end of each first connecting piece 3 away from the fixed plate 2 is hinged to the corresponding first hinge 902; the end of each second connecting piece 7 away from the support plate 6 is a first end, and each first end is hinged to the second hinge 903.

[0038] Specifically, in order to realize the hinge connection between the first connecting piece 3, the second connecting piece 7 and the pressing piece 9, the utility model adopts the technical scheme that the end and the middle part of each pressing piece 9 have a first hinge 902 and a second hinge 903 respectively, and the first hinge 902 and the second hinge 903 of each pressing piece 9 can be hinged to the corresponding first connecting piece 3 and the second connecting piece 7 through a pin shaft connecting assembly.

[0039] In some embodiments, reference is made to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The workpiece pressing device provided by the embodiments of the present application can press the workpiece in the preset direction, and the workpiece pressing device can be used for pressing the workpiece in the preset direction.

[0040] Specifically, in order to realize the articulation between the first connecting piece 3, the second connecting piece 7 and the pressing piece 9, the workpiece pressing device in the technical scheme adopted by the present application further comprises two hook-shaped pieces 10, the two hook-shaped pieces 10 correspond to the two pressing pieces 9 respectively, the articulation end of each hook-shaped piece 10 is rotatably connected to the second articulation place 903 of the corresponding pressing piece 9, and the hooking end of each hook-shaped piece 10 is hooked to the first end part of the corresponding second connecting piece 7.

[0041] In some embodiments, reference is made to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The workpiece pressing device provided by the embodiments of the present application can press the workpiece in the preset direction, and the workpiece pressing device can be used for pressing the workpiece in the preset direction.

[0042] Specifically, in order to realize the articulation between the first connecting piece 3, the second connecting piece 7 and the pressing piece 9, the workpiece pressing device in the technical scheme adopted by the present application further comprises two hook-shaped pieces 10, the two hook-shaped pieces 10 correspond to the two pressing pieces 9 respectively, the articulation end of each hook-shaped piece 10 is rotatably connected to the second articulation place 903 of the corresponding pressing piece 9, and the hooking end of each hook-shaped piece 10 is hooked to the first end part of the corresponding second connecting piece 7.

[0043] In some embodiments, reference is made to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The workpiece pressing device provided by the embodiments of the present application can press the workpiece in the preset direction, and the workpiece pressing device can be used for pressing the workpiece in the preset direction.

[0044] Specifically, in order to realize the articulation between the first connecting piece 3, the second connecting piece 7 and the pressing piece 9, the workpiece pressing device in the technical scheme adopted by the present application further comprises two hook-shaped pieces 10, the two hook-shaped pieces 10 correspond to the two pressing pieces 9 respectively, the articulation end of each hook-shaped piece 10 is rotatably connected to the second articulation place 903 of the corresponding pressing piece 9, and the hooking end of each hook-shaped piece 10 is hooked to the first end part of the corresponding second connecting piece 7.

[0045] In some embodiments, reference is made to the accompanying Figure 1 and the accompanying Figure 2 The workpiece pressing device provided by the embodiment of the utility model, in the specific implementation, the end of each second connecting piece 7 close to the support plate 6 is a second end, the second end is connected with and penetrates the support plate 6, and each second end is respectively provided with a buffer pad 11.

[0046] Specifically, in order to avoid the workpiece placing frame from vibrating during movement, the second end of each second connecting piece 7 is provided with a buffer pad 11 made of rubber in the technical scheme adopted by the utility model. Under the driving action of the cylinder assembly 5, when the workpiece placing frame is in the second position, the buffer pad 11 can avoid the support plate 6 from directly contacting the fixed plate 2, thereby reducing vibration, can avoid the dislocation and deviation of the workpiece 1 to be processed caused by vibration, effectively improves the processing quality of the workpiece, and can also prolong the service life of the device.

[0047] In some embodiments, reference is made to the accompanying Figure 1 and the accompanying Figure 2 The workpiece pressing device provided by the embodiment of the utility model, in the specific implementation, the device main frame further comprises at least two guide rods 12, the two guide rods 12 are arranged in parallel and respectively extend in a preset direction, the end of each guide rod 12 close to the fixed plate 2 is installed on the fixed plate 2, and each guide rod 12 penetrates the support plate 6, so that the support plate 6 can reciprocate in the preset direction between the first position and the second position relative to the fixed plate 2.

[0048] Specifically, in order to ensure that the workpiece placing frame moves more smoothly and can avoid shaking during movement, the technical scheme adopted by the utility model is that guide holes can be formed on the support plate 6, the number and aperture size of the guide holes are adapted to the guide rods 12, the end of the guide rod 12 is installed on the fixed plate 2 through a threaded connecting piece, and the rod body cooperates with the support plate 6 through the corresponding guide hole, so that under the driving of the cylinder assembly 5, the support plate 6 can slide along the guide rod 12. The guide rod 12 can produce a guiding effect during the sliding of the support plate 6, thereby avoiding the shaking of the workpiece placing frame during movement, so as to further ensure the processing quality of the workpiece.

[0049] In some embodiments, the workpiece pressing device provided by the embodiment of the utility model, in the specific implementation, the pressing surface 901 is provided with a protective pad or a protective coating sprayed.

[0050] Specifically, in order to avoid the damage to the surface of the workpiece caused by the pressing part 9 in the pressing state, the technical scheme adopted by the utility model is that the surface of the pressing surface 901 can be equipped with a protective pad made of polyurethane or Teflon material or a protective layer sprayed with the above-mentioned material, so as to ensure that the hardness of the pressing surface 901 is less than the hardness of the surface of the workpiece 1 to be processed, thereby avoiding the damage to the surface of the workpiece.

[0051] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0052] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A workpiece pressing device for clamping a columnar workpiece (1) to be processed, characterized in that, The utility model relates to a workpiece pressing device, including: Device main frame, workpiece placing rack, drive assembly and compression assembly; The device main frame includes fixed plate (2) and two first connecting pieces (3), two first connecting pieces (3) are installed respectively in one side of fixed plate (2) to enclose and form first space (4); The workpiece placing rack is built-in in first space (4), and can be moved back and forth between first position and second position in the direction of the preset through drive assembly, and it includes support plate (6) and two second connecting pieces (7), support plate (6) is arranged in parallel with fixed plate (2), two second connecting pieces (7) are installed respectively in one side of support plate (6) away from fixed plate (2) to enclose and form second space (8) with opening, and the workpiece (1) to be processed can be placed in second space (8) through the opening; The compression assembly includes two compression pieces (9), each compression piece (9) has compression surface (901), the first connecting piece (3), the second connecting piece (7) and the compression piece (9) correspond one by one, two compression pieces (9) are arranged in the opening, and are respectively hinged to the corresponding first connecting piece (3) and second connecting piece (7); Wherein, the preset direction is the direction perpendicular to the fixed plate (2), when the workpiece placing rack is located in the first position, the compression assembly is in the non-pressing state, when the workpiece placing rack is located in the second position, the compression assembly is in the pressing state, and the compression surface (901) is attached to the workpiece (1) to be processed.

2. The workpiece pressing device according to claim 1, wherein: The drive assembly is a cylinder assembly (5), the cylinder body of the cylinder assembly (5) is installed on the side of the support plate (6) away from the second space (8), and the push rod of the cylinder assembly (5) is installed on the fixed plate (2); When the push rod is in the extended state, the workpiece placing rack is located in the first position, and the compression assembly is in the non-pressing state; When the push rod is in the retracted state, the workpiece placing rack is located in the second position, and the compression assembly is in the pressing state, and the compression surface (901) is attached to the surface of the workpiece (1) to be processed away from the support plate (6).

3. The workpiece pressing device according to claim 2, wherein: The first connecting piece (3) is plate-shaped or strip-shaped, and extends in the direction away from the fixed plate (2) in the preset direction; The second connecting piece (7) is plate-shaped or strip-shaped, and extends in the direction away from the support plate (6) in the preset direction; The first connecting piece (3) and the second connecting piece (7) respectively match the size of the workpiece (1) to be processed in the preset direction.

4. The workpiece pressing device according to claim 3, wherein: The pressing piece (9) is in the shape of a strip and has a first hinge (902) and a second hinge (903), the first hinge (902) is located at the end of the pressing piece (9) away from the opening in the extending direction, and the second hinge (903) is located at the middle of the pressing piece (9); The end of each first connecting piece (3) away from the fixed plate (2) in the extending direction is hinged to the corresponding first hinge (902); The end of each second connecting piece (7) away from the support plate (6) in the extending direction is a first end, and each first end is hinged to the corresponding second hinge (903).

5. The workpiece pressing device according to claim 4, wherein The pressing piece (9) further comprises two hook-shaped pieces (10), one for each pressing piece (9), each hook-shaped piece (10) has a hinged end and a hooked end, the hinged end is hinged to the corresponding second hinge (903), and the hooked end is hooked to the corresponding first end.

6. The workpiece pressing device according to claim 5, wherein Each first end is provided with a hinge seat (701), and each hooked end is hooked to the corresponding hinge seat (701).

7. The workpiece pressing device according to claim 4, wherein The distance between the two second connecting pieces (7) is adapted to the size of the workpiece (1) to be processed.

8. The workpiece pressing device according to any one of claims 1-7, wherein The end of each second connecting piece (7) close to the support plate (6) is a second end, the second end is connected to and penetrates through the support plate (6), and each second end is provided with a buffer pad (11).

9. The workpiece pressing device according to any one of claims 1-7, wherein The device main frame further comprises at least two guide rods (12), the two guide rods (12) are arranged in parallel and extend in the preset direction, the end of each guide rod (12) close to the fixed plate (2) is installed on the fixed plate (2), and each guide rod (12) penetrates through the support plate (6), so that the support plate (6) can reciprocate between the first position and the second position relative to the fixed plate (2) in the preset direction.

10. The workpiece pressing device according to any one of claims 1-7, wherein The pressing surface (901) is provided with a protective pad or a protective coating.

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