CN221140177U - Clamp - Google Patents

Abstract

The utility model discloses a clamp, relates to the technical field of carrying, and aims to solve the problems of high labor intensity, low efficiency and low degree of automation of manual carrying of trays. The fixture is used for clamping a workpiece, and the fixture comprises: the device comprises a base frame, a driving structure and at least one group of clamping structures. The base frame is provided with a bearing surface, and the driving structure is arranged on the bearing surface. The clamping structure comprises two clamping assemblies oppositely arranged on the driving structure, and the driving structure is used for driving the two clamping assemblies to be close to or far away from each other. The clamping assembly includes: the device comprises a first mounting piece, a bearing piece and a base plate. The first mounting piece is arranged on the driving structure, the bearing piece is opposite to the first mounting piece and is arranged at intervals, the substrate comprises two ends, and the two ends of the substrate are respectively connected with the first mounting piece and the bearing piece. The clamp is in a clamping state, the workpiece is fixed between the two clamping assemblies, and the bearing piece bears the outer edge of the workpiece.

Description

Clamp

Technical Field

The utility model relates to the technical field of carrying, in particular to a clamp.

Background

Before actual processing and feeding, the trays are generally stacked in a positive-negative crossing manner, so that the transportation space of the vehicle is saved. When the stacked trays are transported into the factory, the stacked trays are carried by staff to facilitate subsequent operations.

At present, a manual mode is generally adopted to carry the tray, but the problems of high labor intensity, low efficiency and low automation degree exist.

Disclosure of utility model

The utility model aims to provide a clamp which is used for improving the automation degree, reducing the labor intensity and improving the carrying efficiency.

In order to achieve the above object, the present utility model provides a clamp for clamping a workpiece. The fixture comprises: the device comprises a base frame, a driving structure and at least one group of clamping structures. The base frame is provided with a bearing surface, and the driving structure is arranged on the bearing surface. The clamping structure comprises two clamping assemblies oppositely arranged on the driving structure, and the driving structure is used for driving the two clamping assemblies to be close to or far away from each other. The clamping assembly includes: the device comprises a first mounting piece, a bearing piece and a base plate. The first mounting piece is arranged on the driving structure, the bearing piece is opposite to the first mounting piece and is arranged at intervals, the substrate comprises two ends, and the two ends of the substrate are respectively connected with the first mounting piece and the bearing piece. The clamp is in a clamping state, the workpiece is fixed between the two clamping assemblies, and the bearing piece bears the outer edge of the workpiece.

Compared with the prior art, in the clamp provided by the utility model, as the driving structure is used for driving the two clamping assemblies to be close to or far away from each other, when the clamp is in a clamping state, a workpiece is fixed between the two clamping assemblies. It is thus known that the work piece can be transported from place to place under the combined action of the base frame, the drive structure and the clamping assembly. At this time, the number of staff involved can be reduced or no staff involved is required. Based on the above, not only the degree of automation can be improved, the labor intensity is reduced, and the carrying efficiency is improved. Meanwhile, the probability of damage to the staff when the staff carries the workpiece can be reduced or eliminated, and the safety of the staff is improved. Further, the bearing piece bears the outer edge of the workpiece when the clamp is in the clamping state. The bearing piece can provide supporting force and bearing force for the workpiece at the moment so as to improve the stability and safety of clamping and carrying the workpiece.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a first view of a clamp according to an embodiment of the present utility model;

FIG. 2 is a second view of the clamp according to the embodiment of the present utility model;

FIG. 3 is a first view of a clamp holding a workpiece according to an embodiment of the utility model;

FIG. 4 is a second view of the clamp holding a workpiece according to an embodiment of the utility model;

FIG. 5 is a first view of a clamping assembly according to an embodiment of the present utility model;

FIG. 6 is a second perspective view of the clamping assembly according to an embodiment of the present utility model;

FIG. 7 is a third view of the clamping assembly according to an embodiment of the present utility model;

FIG. 8 is a fourth view of a clamping assembly according to an embodiment of the present utility model;

FIG. 9 is a fifth view of a clamping assembly according to an embodiment of the present utility model;

FIG. 10 is a sixth perspective view of a clamping assembly according to an embodiment of the present utility model;

FIG. 11 is a seventh perspective view of a clamping assembly according to an embodiment of the present utility model;

FIG. 12 is a first view of a touch switch according to an embodiment of the utility model;

FIG. 13 is a second view of the touch switch according to the embodiment of the utility model;

Fig. 14 is a third view of the touch switch according to the embodiment of the utility model.

Reference numerals:

1-base frame, 2-driving structure, 20-two-way screw rod,

21-Drive member, 22-connecting member, 23-coupling,

3-Clamping structure, 30-clamping assembly, 300-first mount,

301-Carriers, 302-substrates, 303-stiffeners,

304-Elongated mounting holes, 4-first guides, 5-second guides,

6-Touch switch, 60-second mounting, 61-elastic return assembly,

610-Fixtures, 611-connecting rods, 612-compression springs,

62-Switch, 63-abutment, 630-abutment plate,

631-Flank, 632-second connection plate, 633-third connection plate,

64-Third guide, 7-open in-place detector, 8-clamp in-place detector,

9-Closing in-place detecting member, 10-workpiece inspecting member, 11-connecting flange,

12-Workpiece.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In order to solve the technical problems, an embodiment of the utility model provides a clamp for clamping a workpiece. The work may be a tray, a magazine, or other members, and is not particularly limited herein.

Referring to fig. 1 to 7, the jig includes: a base frame 1, a drive structure 2 and at least one set of clamping structures 3. The base frame 1 has a bearing surface, and the driving structure 2 is disposed on the bearing surface. The clamping structure 3 comprises two clamping assemblies 30 oppositely arranged on the driving structure 2, and the driving structure 2 is used for driving the two clamping assemblies 30 to be close to or far away from each other. The clamping assembly 30 includes: a first mount 300, a carrier 301 and a base plate 302. The first mounting member 300 is disposed on the driving structure 2, and the carrier 301 is opposite to and spaced from the first mounting member 300. The substrate 302 includes two ends, and the two ends of the substrate 302 are respectively connected to the first mount 300 and the carrier 301. The clamp is in a clamped state, the workpiece 12 is fixed between the two clamping assemblies 30, and the carrier 301 carries the outer edge of the workpiece 12.

Referring to fig. 1 to 7, in the clamp provided by the embodiment of the present utility model, since the driving structure 2 is used to drive the two clamping assemblies 30 to approach each other or to separate from each other, when the clamp is in the clamped state, the workpiece 12 is fixed between the two clamping assemblies 30. It will be appreciated that the workpiece 12 may be transported from one location to another by the combination of the base 1, the drive structure 2 and the clamp assembly 30. At this time, the number of staff involved can be reduced or no staff involved is required. Based on the above, not only the degree of automation can be improved, the labor intensity is reduced, and the carrying efficiency is improved. Meanwhile, the probability of damage to the staff when the staff carries the workpiece 12 can be reduced or eliminated, and the safety of the staff is improved. Further, since the jig is in the clamped state, the carrier 301 carries the outer edge of the workpiece 12. The carrier 301 can provide supporting force and bearing force for the workpiece 12, so as to improve stability and safety when clamping and carrying the workpiece 12.

As a possible implementation, referring to fig. 1, the base frame 1 may be square or rectangular, and may be made of square steel or aluminum profiles by welding.

As a possible implementation manner, the number of the clamping structures may be set according to practical situations, for example, one group, two groups, three groups, or the like.

For example, when there is only one set of clamping structures, the clamping structures may be sized according to the size of the workpiece to be clamped, so as to ensure that the clamping structures can stably clamp the workpiece.

Referring to fig. 3, when the clamping structure 3 includes two sets, there is a distance between the two sets of clamping structures 3. At this time, the two sets of clamping structures 3 can clamp both ends of the workpiece 12 or clamp the workpiece 12 at the middle position or the like, respectively, and adapt to workpieces 12 of different shapes (e.g., irregularly shaped workpieces 12) or workpieces 12 of larger sizes while ensuring clamping stability.

As a possible implementation, referring to fig. 5, the specifications of the first mounting member 300 and the carrier member 301 may be the same or different. Illustratively, the length of the first mount 300 is greater than the length of the carrier 301 in a direction away from the base plate 302. Further, the first mounting member 300 is a first mounting plate, and the carrier 301 is a carrier plate.

As a possible implementation, referring to fig. 5 to 7, the clamping assembly 30 further includes: the stiffener 303. The stiffener 303 is disposed between the substrate 302 and the first mount 300 and the carrier 301. The bearing member 301 and the reinforcement member 303 are disposed opposite to each other with a gap therebetween, and the reinforcement member 303 is controllably moved in a direction approaching or moving away from the bearing member 301. The clamp is in a clamped state, and the stiffener 303 and the carrier 301 are used to clamp the edges of opposite sides of the workpiece 12.

Since the stiffener 303 is controllably moved in a direction approaching or separating from the carrier 301, at this time, the position of the stiffener 303 may be adjusted according to the thickness of the position to be clamped of the workpiece 12, so that the stiffener 303 and the carrier 301 may clamp the edges of two opposite sides of the workpiece 12, thereby further improving the stability and safety when clamping and carrying the workpiece 12.

In an alternative, referring to fig. 5 to 11, an elongated mounting hole 304 for mounting the fixing reinforcement 303 is formed in the base plate 302 in the direction from the first mounting member 300 to the carrier 301. The size of the connecting fitting such as the bolt for fixing the reinforcement 303 is smaller than the length of the elongated mounting hole 304, and at this time, the relative positions of the bolt and the elongated mounting hole 304 can be adjusted according to actual needs, so as to ensure that the reinforcement 303 and the carrier 301 can clamp the edges of the opposite sides of the workpiece 12 when the clamp is in the clamped state.

In an alternative, referring to fig. 5 to 7, a plane coincident with the height direction of the clamping assembly 30 is defined as a longitudinal section, the longitudinal section of the carrier 301 is trapezoidal, and the carrier 301 has an inclined surface facing the reinforcement 303. The inclined surface of the carrier 301 may serve as a guide to facilitate the entry of the workpiece 12 into the clamping assembly 30 along the inclined surface of the carrier 301.

In an alternative, referring to fig. 7, the carrier 301 has an angle a between the bevel and the horizontal plane of the base 1 of greater than or equal to 30 ° and less than or equal to 60 °. For example, the included angle a may be 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, or the like.

In an alternative, referring to fig. 5 to 7, a plane coincident with the height direction of the clamping assembly 30 is defined as a longitudinal section, the longitudinal section of the reinforcing member 303 is trapezoidal, and the inclined surface of the reinforcing member 303 is disposed opposite to the inclined surface of the carrier 301.

The bevel provided by the stiffener 303 may act as a guide to facilitate entry of the workpiece 12 into the clamping assembly 30 along the bevel provided by the stiffener 303. Further, under the mutual cooperation of the reinforcement 303 and the carrier 301, the smoothness of the workpiece 12 entering the clamping assembly 30 can be improved, and the working efficiency can be improved.

In an alternative, referring to fig. 7, the reinforcement 303 has a bevel and the angle B between the bevel and the horizontal plane of the base frame 1 is greater than or equal to 30 ° and less than or equal to 60 °. For example, the included angle B may be 30 °, 35 °,40 °,45 °,50 °, 55 °, 60 °, or the like.

As a possible implementation manner, the inclined plane of the reinforcement 303 and the inclined plane of the carrier 301 are symmetrically disposed along the direction perpendicular to the substrate 302, and the two inclined planes make a horn shape between the reinforcement 303 and the carrier 301.

In actual use, the stiffener 303 has a horizontal surface and the carrier 301 has a horizontal surface that grips the edges of opposite sides of the workpiece 12.

As a possible implementation manner, the clamping assembly further includes: friction piece. The friction piece is arranged on the base plate, the first mounting piece and the bearing piece. That is, the friction member is provided on an end surface of the clamp assembly for abutting against the workpiece. When the clamp is in a clamping state, the friction piece is abutted with the workpiece. And/or a plurality of grooves or a plurality of protrusions are formed on the end surface, which is used for being abutted against the workpiece, of the clamping assembly.

By utilizing the friction piece, the grooves and the protrusions, the friction force of the clamping assembly can be improved, the clamping assembly of the clamping assembly to the workpiece is enhanced, and the falling probability of the workpiece from the clamping assembly is reduced or eliminated.

The friction member may be made of a high friction material, such as polyvinyl chloride, leather, rubber, silica gel, cotton cloth, etc. The protrusions may be bumps or ribs. The plurality of grooves or the plurality of raised strips can be formed by combining linear type and wavy linear type.

As a possible implementation, referring to fig. 1, the driving structure 2 includes: a bidirectional screw 20, a driving member 21 and a connecting member 22. The bidirectional screw rod 20 is arranged on the bearing surface along the first direction, the driving piece 21 is arranged on the base frame 1, and the driving piece 21 is connected with one end of the bidirectional screw rod 20 and used for driving the bidirectional screw rod 20 to move. Along a first direction, two connectors 22 are oppositely disposed to the bi-directional screw 20. The length direction of the connecting member 22 is consistent with the second direction, and the first mounting member 300 is disposed on the connecting member 22 in the first direction different from the second direction.

The bidirectional screw rod 20 is divided into two parts, and the screw threads of the two parts are opposite in rotation direction. The two connecting members 22 can be moved closer to or farther from each other by the bidirectional screw rod 20, and the two clamping assemblies 30 disposed on the connecting members 22 can be moved closer to or farther from each other.

The driving member 21 may be a servo motor, a handle, a pneumatic cylinder, a hydraulic cylinder, or the like. Illustratively, when the driving member 21 is a servo motor, the servo motor is connected to the bi-directional screw 20 through a coupling 23. In the actual use process, the servo motor is controlled to be started or disconnected to control whether the bidirectional screw rod 20 moves or not, and further control whether the clamping assembly 30 works or not.

The connecting piece 22 is a connecting plate, and the two connecting plates are respectively connected with the bidirectional screw rod 20 through a left-handed screw cap and a right-handed screw cap, so as to realize simultaneous and equivalent movement of the two clamping assemblies 30.

The first direction C is a longitudinal direction of the bearing surface, the second direction D is a width direction of the bearing surface, and the first direction C and the second direction D are perpendicular to each other.

As a possible implementation manner, the fixture further includes: a first guide and a second guide. The first guide piece is arranged on the bearing surface along the first direction, the first end face of the second guide piece is connected with the first guide piece in a sliding mode, and the second end face of the second guide piece is connected with the driving structure.

Under the cooperation of the first guide piece and the second guide piece, the clamping assembly can move along the first guide piece to play a role in guiding. Meanwhile, the steering of the clamping assembly connected with the bidirectional screw rod in the actual working process can be reduced or avoided, so that the normal working of the clamping assembly is ensured.

The first guide and the second guide are described below by way of two possible examples, it being understood that the following description is for understanding only and is not intended to be limiting in any way.

Example one: referring to fig. 1, the first guide 4 is a rail provided on the base frame 1, and the second guide 5 is a slider engaged with the rail.

Example two: the first guide member is a protruding member arranged on the base frame, and the second guide member is a groove matched with the protruding member.

In the embodiment of the present utility model, the first direction is the length direction of the bearing surface, and the second end surface of the second guide 5 is connected to the connecting member 22. Along the width direction of the bearing surface, the clamp comprises two groups of slide rails and slide blocks which are oppositely arranged, and each group of slide rails and slide blocks is matched with one group of clamping structures 3 for use. At this time, both ends of each connecting piece 22 are respectively connected with the sliders in each group.

As a possible implementation, referring to fig. 1 and 2, the above-mentioned clamp further includes: a touch switch 6 and a controller. The touch switch 6 is disposed on a side wall of the base frame 1 and located between two clamping components 30 included in the same clamping structure 3. The controller is electrically connected with the touch switch 6, and the controller is used for controlling the clamping structure 3 to clamp the workpiece 12 or release the workpiece 12 according to the opening or closing of the touch switch 6.

The controller can be a computer, a mobile phone, a controller and the like in the prior art.

In an alternative, referring to fig. 12 to 14, the above-mentioned touch switch 6 includes: a second mounting member 60, a resilient return assembly 61, a switch member 62 and an abutment member 63. The second mounting member 60 is disposed on a side wall of the base frame 1, and the second mounting member 60 has a first surface and a second surface opposite to each other. The elastic reset component 61 is disposed on the first surface of the second mounting member 60, the switch member 62 is disposed on the second surface of the second mounting member 60, and the switch member 62 is electrically connected to the controller. The abutment 63 is elastically connected to the elastic return member 61, and the abutment 63 is used to activate or deactivate the switch element 62.

Illustratively, the first face of the second mounting member 60 abuts a side wall of the base frame 1. During actual use, the workpiece 12 presses against the abutment 63, the abutment 63 activating the switch 62. When the workpiece 12 is moved away from or out of the abutment 63, the abutment 63 moves away from the switch 62 to close the switch 62.

In an alternative, referring to fig. 12 to 14, the elastic restoring assembly 61 includes: a fixing member 610, a connecting rod 611, and a compression spring 612. The fixing member 610 is disposed on the first surface of the second mounting member 60, and the first end of the connecting rod 611 is fixedly connected to the fixing member 610. The second end of the connecting rod 611 penetrates the abutment 63, and the abutment 63 is slidably connected to the connecting rod 611. The compression spring 612 is sleeved on the outer side wall of the connecting rod 611, one end of the compression spring 612 is abutted against the fixing piece 610, and the other end of the compression spring 612 is abutted against the abutting piece 63.

Illustratively, the second end of the connecting rod 611 has a nut or stop that prevents the abutment 63 from disengaging the connecting rod 611 when it is away from the fixing member 610. Further, the fixing member 610 is provided, so that the touch switch 6 has an independent structure, and is convenient for later maintenance and replacement.

When the abutting piece 63 is not in contact with the workpiece 12, the compression spring 612 is in an initial state, one end of the compression spring 612 abuts against the fixing piece 610, and the other end of the compression spring 612 abuts against the abutting piece 63.

When the jig moves downward to search for the workpiece 12 and the workpiece 12 continuously presses the abutment 63, the abutment 63 moves in a direction approaching the fixing member 610, at which time the abutment 63 presses the compression spring 612, and the compression spring 612 shortens in length. At the same time, the abutment 63 activates the switch 62, which switch 62 transmits a signal to the controller, which controls the clamp to stop moving downwards and controls the clamping structure 3 to clamp the workpiece 12.

After the jig has placed the workpiece 12 at the predetermined position, the workpiece 12 no longer presses the abutment 63, and the compression spring 612 gradually resets to gradually reset the abutment 63. When the abutment 63 is far from the switch 62, the switch 62 is closed.

In an alternative, the switch element may be a travel switch or an optoelectronic switch. In the embodiment of the utility model, the switch piece is a travel switch.

In an alternative, referring to fig. 12 to 14, the abutment 63 includes: abutment plate 630, flap 631, second connection plate 632 and third connection plate 633. The third connection plate 633 faces the first surface of the second mounting member 60, and the third connection plate 633 is opposite to and spaced apart from the second mounting member 60. Both ends of the third connecting plate 633 are respectively connected with the second connecting plate 632 and the abutting plate 630, the third connecting plate 633 and the second connecting plate 632 are in L-shaped arrangement, and the second end of the connecting rod 611 penetrates through the second connecting plate 632. The abutting plate 630 and the third connecting plate 633 are also L-shaped, and the abutting plate 630 is used for abutting against the workpiece 12. Two sides of the abutting plate 630 are respectively provided with a side wing 631, and the two side wings 631 are opposite and distributed at intervals.

In an alternative manner, the touch switch 6 further includes a flexible member disposed on the abutment plate 630, so as to protect the workpiece 12 in contact with the abutment plate 630 from damage to the workpiece 12.

In an alternative, referring to fig. 12 to 14, the above-mentioned tactile switch 6 further comprises a third guide 64. The third guide 64 is provided on the first surface of the second mount 60, and the abutment 63 is connected to the third guide 64 in a guide manner. The third guide 64 serves as a guide to reduce or avoid the abutment 63 from being displaced toward or away from the fixing member 610. The third guide 64 may be a guide rail.

In one alternative, the touch switch further includes a fourth guide member. The first end face of the fourth guide piece is connected with the third guide piece in a sliding mode, and the second end face of the fourth guide piece is connected with the abutting piece. The fourth guide may be a slider.

In an alternative, referring to fig. 1 and 2, the above-mentioned jig further includes: along the direction from one clamping component 30 to the other clamping component 30 in the same clamping structure 3, an open in-place detecting piece 7, a clamping in-place detecting piece 8, a closed in-place detecting piece 9 and a workpiece detecting piece 10 which are sequentially arranged on the side wall of the base frame 1 and electrically connected with a controller, and the touch switch 6 is positioned between the closed in-place detecting piece 9 and the workpiece detecting piece 10. The closed in-place detecting member 9 is used for detecting position information of the clamping assembly 30 when the clamping structure 3 is closed in place, the open in-place detecting member 7 is used for detecting position information of the clamping assembly 30 when the clamping structure 3 is opened in place, the workpiece checking member 10 is used for detecting whether the clamping structure 3 clamps the workpiece 12, and the clamped in-place detecting member 8 is used for detecting position information of the clamping assembly 30 when the clamping structure 3 clamps the workpiece 12.

In an alternative, the above-mentioned open-in-place detecting member 7, the clamp-in-place detecting member 8, and the close-in-place detecting member 9 may be groove-type photoelectricity in the prior art.

In the actual use process, when the opening in-place detection piece 7 and the closing in-place detection piece 9 are used for detecting that the clamping structure 3 is completely opened or completely closed, the clamping structure 3 does not clamp the workpiece 12, and the clamping in-place detection piece 8 is used for detecting that the clamping structure 3 clamps the workpiece 12. At this time, the controller corresponds to different processing modes.

In one alternative, the workpiece inspection piece 10 may be a diffuse reflective photovoltaic as in the prior art. Illustratively, the clamping structure 3 is considered to clamp the workpiece 12 in the control procedure, but in reality the diffuse reflected light does not detect that the clamping structure 3 clamps the workpiece 12. At this time, the shutdown or starting of the abnormal program is needed to be further checked, so that problems are avoided, and an error preventing function is achieved.

In summary, the position of the clamping assembly 30 is detected and corresponding information is obtained by the open in-place detecting member 7, the clamping in-place detecting member 8, the closed in-place detecting member 9 and the workpiece checking member 10, and then the information is processed by the terminal equipment, so that the diagnosis of the clamp state is realized.

In an alternative, referring to fig. 1 and 2, the fixture further includes a connection flange 11 provided on the base frame 1, and is connected to an actuator such as a robot through the connection flange 11.

The following description of the use of the clamp is simplified by way of example of one possible implementation, it being understood that the following description is for understanding only and is not intended to be limiting in any way.

Referring to fig. 1 to 14, the jig moves downward to search for the workpiece 12, and when the workpiece 12 continuously presses the abutment 63, the abutment 63 moves in a direction approaching the fixing member 610, at which time the abutment 63 presses the compression spring 612, and the compression spring 612 shortens in length. At the same time, the abutment 63 activates the switch 62, which switch 62 transmits a signal to the controller, which controls the clamp to stop moving downwards and controls the two clamping assemblies 30 comprised by the clamping structure 3 to approach each other to clamp the workpiece 12.

After the jig has placed the workpiece 12 at the predetermined position, the workpiece 12 no longer presses the abutment 63, and the compression spring 612 gradually resets to gradually reset the abutment 63. When the abutment 63 is far from the switch 62, the switch 62 is closed.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A clamp for clamping a workpiece, the clamp comprising:

A base frame having a bearing surface;

the driving structure is arranged on the bearing surface;

At least one group of clamping structures, wherein the clamping structures comprise two clamping assemblies oppositely arranged on the driving structure; the driving structure is used for driving the two clamping assemblies to be close to each other or far away from each other;

The clamping assembly includes:

the first mounting piece is arranged on the driving structure;

the bearing piece is opposite to the first mounting piece and is arranged at intervals;

The substrate comprises two ends, and the two ends of the substrate are respectively connected with the first mounting piece and the bearing piece;

The clamp is in a clamping state, the workpiece is fixed between the two clamping assemblies, and the bearing piece bears the outer edge of the workpiece.

2. The clamp of claim 1, wherein the clamping assembly further comprises:

A reinforcement member disposed between the first mounting member and the carrier; the bearing piece and the reinforcement piece are opposite and are arranged at intervals; the reinforcement is controllably moved towards or away from the carrier;

The clamp is in a clamping state, and the reinforcement and the bearing piece are used for clamping edges of two opposite sides of the workpiece.

3. A clamp according to claim 2, characterized in that a plane coinciding with the height direction of the clamping assembly is defined as a longitudinal section, the longitudinal section of the carrier being trapezoidal; the carrier has a ramp facing the stiffener;

The inclined plane of the bearing piece and the horizontal plane of the base frame are larger than or equal to 30 degrees and smaller than or equal to 60 degrees.

4. A clamp according to claim 3, wherein a plane coincident with the height direction of the clamping assembly is defined as a longitudinal section, the longitudinal section of the stiffener being trapezoidal; the inclined plane of the reinforcement member is opposite to the inclined plane of the bearing member;

The inclined plane of the reinforcement and the horizontal plane of the base frame are included by more than or equal to 30 degrees and less than or equal to 60 degrees.

5. The fixture of claim 1, wherein the fixture comprises a plurality of clamping plates,

The clamping assembly further comprises: the friction piece is arranged on the base plate, the first mounting piece and the bearing piece; the clamp is in a clamping state, and the friction piece is abutted with the workpiece; and/or the number of the groups of groups,

A plurality of grooves or a plurality of protrusions are formed on the end face, which is used for being abutted against the workpiece, of the clamping assembly; and/or the number of the groups of groups,

The clamp further comprises:

The first guide piece is arranged on the bearing surface along a first direction;

The first end face of the second guide piece is connected with the first guide piece in a sliding mode, and the second end face of the second guide piece is connected with the driving structure.

6. The clamp of claim 1, wherein the drive structure comprises:

the bidirectional screw rod is arranged on the bearing surface along the first direction;

The driving piece is arranged on the base frame; the driving piece is connected with one end of the bidirectional screw rod and used for driving the bidirectional screw rod to move;

The two connecting pieces are oppositely arranged on the bidirectional screw rod along the first direction; the length direction of the connecting piece is consistent with the second direction; the first mounting piece is arranged on the connecting piece; the first direction is different from the second direction.

7. The clamp of claim 1, wherein the clamp further comprises:

The touch switch is arranged on the side wall of the base frame and is positioned between the two clamping assemblies included in the same clamping structure;

And the controller is electrically connected with the touch switch.

8. The clamp of claim 7, wherein the touch switch comprises:

The second mounting piece is arranged on the side wall of the base frame; the second mount has opposed first and second faces;

The elastic reset component is arranged on the first surface of the second mounting piece;

The switch piece is arranged on the second surface of the second mounting piece; the switch piece is electrically connected with the controller;

the abutting piece is elastically connected with the elastic reset component; the abutting piece is used for starting or closing the switch piece.

9. The clamp of claim 8, wherein the resilient return assembly comprises:

The fixing piece is arranged on the first surface of the second mounting piece;

The first end of the connecting rod is fixedly connected with the fixing piece; the second end of the connecting rod penetrates through the abutting piece, and the abutting piece is in sliding connection with the connecting rod;

The compression spring is sleeved on the outer side wall of the connecting rod; one end of the compression spring is abutted with the fixing piece, and the other end of the compression spring is abutted with the abutting piece.

10. The clamp of claim 7, wherein the clamp further comprises: the clamping assembly is arranged on the side wall of the base frame and is electrically connected with the controller along the direction from one clamping assembly to the other clamping assembly in the same clamping structure, and the opening in-place detection member, the clamping in-place detection member, the closing in-place detection member and the workpiece inspection member are sequentially arranged on the side wall of the base frame; the touch switch is positioned between the closed in-place detection piece and the workpiece inspection piece;

The closing in-place detection piece is used for detecting position information of the clamping assembly when the clamping structure is closed in place;

the open in-place detection piece is used for detecting position information of the clamping assembly when the clamping structure is opened in place;

the workpiece checking piece is used for detecting whether the clamping structure clamps the workpiece or not;

The clamping in-place detection piece is used for detecting position information of the clamping assembly when the clamping structure clamps the workpiece.