Rapid clamping device

Abstract

The utility model discloses a quick clamping device which comprises a base, a locking mechanism and a pressing head, the upper end face of the base is a horizontal first datum plane, and the two adjacent edges of the base protrude upwards and respectively form a second datum plane and a third datum plane. The first reference surface, the second reference surface and the third reference surface are perpendicular to each other; the locking mechanism is connected with the base, and the output end of the locking mechanism linearly moves in the first direction; the pressing head is hinged to the output end of the locking mechanism, the end, close to the second datum plane, of the pressing head is provided with a pressing end, the pressing end and the second datum plane are arranged in the first direction, and the end, away from the second datum plane, of the pressing head is heavier than the end, provided with the pressing end, of the pressing head. The wood block carving machine can solve the problems that in existing wood block carving machining, wood blocks fall off, and machining efficiency is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and particularly relates to a quick clamping device. Background Art

[0002] The existing wood block processing is to fix the wood block on the work table by glue or flat-nose pliers, and then the engraving machine processes the wood block after the knife is adjusted to obtain the processing parameters.

[0003] However, when using glue to fix, some wood blocks may fall off during processing due to loose adhesion, resulting in failure of the engraving machine to process the wood blocks.

[0004] When using flat-nose pliers to fix the wood block, although it can prevent the wood block from falling off, the engraving machine needs to align the tool every time the workpiece is clamped, resulting in low processing efficiency of the wood block. Utility Model Content

[0005] The utility model aims to provide a quick clamping device to solve the technical problems of wood block falling off and low processing efficiency existing in the prior art.

[0006] The technical solutions adopted to solve the above technical problems are:

[0007] The utility model discloses a quick clamping device, comprising:

[0008] A base, wherein the upper end surface of the base is a horizontal first reference surface, two adjacent edges of the base protrude upward and respectively form a second reference surface and a third reference surface, and the first reference surface, the second reference surface and the third reference surface are perpendicular to each other;

[0009] A locking mechanism, wherein the locking mechanism is connected to the base, and an output end of the locking mechanism moves linearly along a first direction;

[0010] A clamping head, wherein the clamping head and the output end of the locking mechanism are hinged, a clamping end is provided at one end of the clamping head close to the second reference plane, the clamping end and the second reference plane are arranged along a first direction, and an end of the clamping head away from the second reference plane is heavier than an end thereof with the clamping end.

[0011] The utility model has at least the following beneficial effects: the wood block is placed on the base so that the three intersecting end faces of the wood block are respectively close to the first reference plane, the second reference plane and the third reference plane, and then the locking mechanism is activated to move the clamping head toward the second reference plane so that the upturned clamping end abuts the wood block, and the clamping end is rotated downward by further linear movement of the output end of the locking mechanism until the wood block is firmly clamped between the first reference plane, the second reference plane, the third reference plane and the clamping end to prevent the wood block from loosening or falling off. In addition, one vertex of the clamped wood block always coincides with the tool setting point, and the tool position point of the engraving machine only needs to be aligned with the tool setting point once, and there is no need to re-align the tool after each engraving, thereby improving the engraving processing efficiency of the wood block.

[0012] As a further improvement of the above technical solution, the output end of the locking mechanism is connected to a slider, the slider slides on the first reference plane, and the clamping head is hinged to the slider through a pin.

[0013] Through the above arrangement, the slider makes the hinged connection between the output end of the locking mechanism and the clamping head simpler. The slider can slide along the first reference plane to provide support for the linear movement of the clamping head along the first direction, preventing the clamping head from deviating downward due to gravity.

[0014] As a further improvement of the above technical solution, the locking mechanism includes a locking block and a locking screw, the locking block is connected to the base, the locking block is provided with a locking hole, the locking screw is threaded through the locking hole, and the locking screw is rotatably connected to the slider.

[0015] Through the above arrangement, the locking screw and the locking block rotate relative to each other, so that the slider and its hinged pressing head move in the first direction, thereby clamping or loosening the wood block. The locking screw and the slider are rotatably connected, so that the slider can only move linearly in the first direction, avoiding the situation where the pressing head is driven by the locking screw to rotate, resulting in failure to clamp the wood block.

[0016] As a further improvement of the above technical solution, the slider is provided with a connecting hole, the locking screw includes a connecting rod and a threaded rod connected to each other, the diameter of the connecting rod is smaller than that of the threaded rod, and the connecting rod is passed through the connecting hole.

[0017] Through the above arrangement, the connecting rod is passed through the connecting hole of the slider. When the locking mechanism is used to clamp the wooden block, the locking screw rotates relative to the locking block. At this time, the connecting rod rotates in the connecting hole, and the connecting surface of the threaded rod and the connecting rod abuts against the end surface of the slider, thereby driving the slider to move in the direction close to the second reference plane to achieve the clamping of the wooden block.

[0018] As a further improvement of the above technical solution, the base is provided with a guide groove connected to the first reference surface, the guide groove extends along a first direction, and the lower end of the sliding block slides in the guide groove.

[0019] Through the above arrangement, the lower end of the slider slides in the guide groove to guide the linear movement of the slider driven by the output end of the locking mechanism to avoid the slider from deflecting.

[0020] As a further improvement of the above technical solution, the guide groove is a stepped groove that is smaller at the top and larger at the bottom, the slider is an I-shaped structure, and the connecting hole is located at the lower end of the slider.

[0021] The above arrangement prevents the slider from deviating in the up and down directions and in another direction, ensuring that the slider can only move in a straight line along the first direction. The connecting hole is located at the lower end of the slider, so that the connecting end of the locking screw and the slider is hidden in the guide groove, making the structure of the quick clamping device simpler.

[0022] As a further improvement of the above technical solution, the clamping end is extended in a direction close to the second reference surface and is provided with an abutting surface.

[0023] Through the above arrangement, when the abutting surface of the clamping end is flush with the end surface of the wood block, the wood block is firmly clamped between the second reference surface and the clamping head, which makes it easy for people to quickly confirm whether the wood block is firmly clamped.

[0024] As a further improvement of the above technical solution, the end surface of the pressing head facing the third reference surface and the third reference surface are in the same plane.

[0025] Through the above arrangement, it is ensured that the two opposite ends of the wooden block can be completely clamped by the clamping head and the second reference surface, thereby preventing the wooden block from deviating in the first direction.

[0026] As a further improvement of the above technical solution, the inner side surface of the locking hole and the outer side surface of the locking screw are both provided with matching rectangular threads.

[0027] Through the above arrangement, the rectangular thread has the advantages of high transmission efficiency and low friction. When the locking screw rotates relative to the locking block, the slider can move linearly along the first direction more labor-savingly and quickly.

[0028] As a further improvement of the above technical solution, four fixing holes are provided on the edge of the base, and the four fixing holes are distributed in a rectangular array. The fixing holes are equipped with fixing screws for connecting to the workbench.

[0029] Through the above arrangement, the fixing screw passes through the fixing hole and is screwed into the workbench, thereby firmly fixing the base on the workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0031] Figure 1 It is a schematic diagram of the overall structure of the quick clamping device provided in the embodiment of the utility model;

[0032] Figure 2 It is a front cross-sectional view of the quick clamping device provided by an embodiment of the utility model;

[0033] Figure 3 It is a schematic diagram of the overall structure of the base provided by the embodiment of the utility model;

[0034] Figure 4 It is a right side view of the sliding block provided by the embodiment of the utility model installed on the base.

[0035] The following are marked in the accompanying drawings:

[0036] 100. Quick clamping device;

[0037] 200, base; 210, first reference plane; 220, second reference plane; 230, third reference plane; 240, first flange; 250, second flange; 260, guide groove; 270, fixing hole; 280, fixing screw;

[0038] 300, pressing head; 310, pressing end; 320, abutting surface;

[0039] 400, locking mechanism; 410, locking block; 411, locking hole; 420, locking screw; 421, connecting rod; 422, threaded rod;

[0040] 500, slider; 510, pin; 520, connecting hole;

[0041] 600, wood block;

[0042] 700, mounting hole; 710, mounting bolt. DETAILED DESCRIPTION

[0043] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0044] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] It should be noted that in the drawings, the X direction is from the rear side to the front side of the quick clamping device; the Y direction is from the left side to the right side of the quick clamping device; and the Z direction is from the bottom side to the top side of the quick clamping device.

[0047] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0048] Reference Figures 1 to 4 , several embodiments of the quick clamping device of the utility model are given below.

[0049] like Figures 1 to 4 As shown, the quick clamping device 100 of the embodiment of the utility model includes a base 200 , a locking mechanism 400 and a pressing head 300 .

[0050] It is understandable that the base 200 is fixedly mounted on the workbench. The upper end surface of the base 200 is a horizontal surface, and the upper end surface of the base 200 is set as the first reference surface 210. Figure 1 and Figure 3 The two adjacent edges of the base 200 protrude upwards to form a first flange 240 and a second flange 250. The first flange 240 forms a second reference surface 220, and the second flange 250 forms a third reference surface 230. Figure 3 The second reference plane 220 and the third reference plane 230 are perpendicular to each other and are respectively connected to the first reference plane 210 in a perpendicular manner, so that the first reference plane 210, the second reference plane 220 and the third reference plane 230 intersect to form a tool reference point.

[0051] It can be understood that the locking mechanism 400 is connected to the base 200 , and the output end of the locking mechanism 400 moves linearly along the first direction to clamp the wood block 600 to be processed on the base 200 .

[0052] It is understandable that the clamping head 300 is hinged to the output end of the locking mechanism 400 so that the two can rotate relative to each other. The clamping head 300 is provided with a clamping end 310 at one end close to the second reference surface 220. Figure 2 The clamping end 310 and the second reference surface 220 are arranged along the first direction, and the wood block 600 is clamped between the clamping end 310 and the second reference surface 220. The end of the clamping head 300 away from the second reference surface 220 is heavier than the end with the clamping end 310, so that the clamping end 310 is relatively warped when in a non-working state.

[0053] With such arrangement, before processing the wood block 600, the wood block 600 is positioned using the quick clamping device 100. Specifically, the wood block 600 is placed on the first reference surface 210 of the base 200, and the three intersecting end surfaces of the wood block 600 are respectively pressed against the first reference surface 210, the second reference surface 220 and the third reference surface 230, and then the locking mechanism 400 is started, and the output end of the locking mechanism 400 moves along the first direction, so that the upturned pressing end 310 of the pressing head 300 first contacts the wood block 600, and as the output end of the locking mechanism 400 moves further, the pressing head 300 will rotate downward relatively, so that the pressing end 310 quickly and firmly clamps the wood block 600, ensuring that the wood block 600 does not loosen during processing. At this time, a vertex of the wood block 600 coincides with the tool setting point, so that the tool position point of the engraving machine coincides with the tool setting point, and the tool setting of the engraving machine is completed. After the engraving of the wooden block 600 is completed, when the quick clamping device 100 is loaded with a new wooden block 600, a vertex of the new wooden block 600 coincides with the tool setting point and the tool setting point again. The engraving machine only needs to set the tool once to engrave multiple wooden blocks 600, and there is no need for repeated tool setting, thereby improving the processing efficiency of the wooden block 600.

[0054] In this embodiment, the first direction is the left-right direction, the right edge of the first flange 240 is the second reference surface 220, the left edge of the first flange 240 is flush with the left end surface of the base 200, and the output end of the locking mechanism 400 clamps the wood block 600 between the second reference surface 220 and the clamping end 310 from back to front. The rear edge of the second flange 250 is the third reference surface 230, and the front edge of the second flange 250 is flush with the front end surface of the base 200, making the base 200 flat and beautiful.

[0055] It can be understood that the output end of the locking mechanism 400 is connected to the slider 500. Figure 1 , Figure 2 and Figure 4As shown, the hinge structure of the output end of the locking mechanism 400 and the pressing head 300 is simpler. Specifically, the slider 500 is provided with a first pin hole at both ends along the front-to-back direction, the pressing block is provided with a second pin hole corresponding to the first pin hole, and the pin shaft 510 extends along the front-to-back direction and penetrates the first pin hole and the second pin hole, so as to realize the relative rotation of the pressing block and the output end of the locking mechanism 400 around the front-to-back axis.

[0056] It can be understood that, in order to prevent the pin shaft 510 from being separated from the first pin hole and the second pin hole, the pin shaft 510 is fixedly connected to the first pin hole, and the pin shaft 510 is sleeve-connected to the second pin hole.

[0057] It is understandable that the slider 500 slides on the first reference plane 210, and the slider 500 connected to the output end of the locking mechanism 400 moves left and right along the horizontal first reference plane 210 to make the left and right movement of the pressing head 300 more stable.

[0058] In some embodiments, the locking mechanism 400 may be a linear motion mechanism such as an air cylinder, an oil cylinder, a linear motor, etc., which directly clamps or releases the wood block 600 .

[0059] In this embodiment, the locking mechanism 400 includes a locking block 410 and a locking screw 420. Figure 1 and Figure 2 The locking block 410 is connected to the base 200 so that the two are relatively fixed. The locking block 410 is provided with a locking hole 411, and the locking screw 420 is threadedly passed through the locking hole 411. Figure 1 and Figure 2 The output end of the locking mechanism 400 is actually a locking screw 420. When the locking screw 420 rotates relative to the locking block 410, one end of the locking screw 420 clamps the wood block 600 to the left or loosens it to the right. The locking screw 420 and the slider 500 are rotatably connected so that the locking screw 420 only drives the slider 500 to move left and right, but does not drive the slider 500 to rotate relative to the base 200. The slider 500 still translates left and right along the first reference plane 210.

[0060] With such arrangement, when the locking screw 420 rotates relative to the locking block 410 , one end of the locking screw 420 moves left and right relative to the base 200 , thereby driving the connected sliding block 500 to clamp the wooden block 600 to the left.

[0061] In some embodiments, a rotating handle may be connected to one end of the locking screw 420 away from the slider 500, and the wooden block 600 may be clamped or loosened by manual twisting.

[0062] In other embodiments, the end of the locking screw 420 away from the slider 500 can be connected to a forward and reverse motor and a coupling, and the forward and reverse rotation of the motor can automatically control whether the slider 500 moves to the left or right, making the use of the quick clamping device 100 more convenient and eliminating the need to manually repeatedly turn the locking screw 420.

[0063] Furthermore, the clamping end 310 or the slider 500 may be provided with a pressure sensor, and the pressure sensor is provided with a clamping pressure. When the clamping pressure of the clamping end 310 on the wooden block 600 is greater than or equal to the clamping pressure, the rotating handle can be loosened or the forward and reverse motors can be turned off, which can ensure the clamping force of the clamping end 310 on the wooden block 600 while avoiding excessive clamping force, which may cause the clamping end 310 to break.

[0064] It can be understood that the pressure sensor can be electrically connected to the forward and reverse motor to automatically control the shutdown of the forward and reverse motor.

[0065] In some embodiments, the slider 500 and the locking screw 420 may be rotatably connected via a bearing.

[0066] In other embodiments, the slider 500 is provided with a connection hole 520 through which the locking screw 420 can pass. Figure 2 and Figure 4 The locking screw 420 includes a connecting rod 421 and a threaded rod 422 connected to each other. The connecting rod 421 is inserted into the connecting hole 520, and the threaded rod 422 is threadedly inserted into the locking hole 411. The diameter of the connecting rod 421 is smaller than that of the threaded rod 422. Figure 2 shown.

[0067] With such arrangement, when the locking screw 420 moves to the left relative to the locking block 410, the connection surface of the threaded rod 422 and the connecting rod 421 abuts against the right end surface of the slider 500, thereby driving the slider 500 to move to the left, thereby clamping the wood block 600. When the locking screw 420 moves to the right relative to the locking block 410, the removed wood block 600 can drive the adjacent pressing head 300 to move to the right, making it easier to insert a new wood block 600.

[0068] It can be understood that the rotation axis of the locking screw 420 extends along the left-right direction.

[0069] It is understandable that the base 200 is provided with a guide groove 260 opening upwards, such as Figure 1 , Figure 3 and Figure 4As shown, the guide groove 260 is connected to the first reference surface 210, and the guide groove 260 extends along the first left-right direction, and the lower end of the slider 500 slides in the guide groove 260. The guide groove 260 is used to guide the left-right movement of the slider 500 to avoid the slider 500 from being offset in the front-back direction. After the wood block 600 is clamped, one of the vertices of the wood block 600 does not coincide with the tool setting point, resulting in the need for the engraving machine to re-set the tool or processing failure.

[0070] In some embodiments, the guide groove 260 is a straight groove, the slider 500 is a T-shaped structure, the upper end of the slider 500 slides along the first reference surface 210, and the lower end of the slider 500 slides in the guide groove 260. However, when the output end of the locking mechanism 400 drives the slider 500 to move left and right, the slider 500 may deviate upward, thereby causing the pressing end 310 to be unable to accurately press the wood block 600.

[0071] In this embodiment, the guide groove 260 is a stepped groove, and the upper end of the stepped guide groove 260 is small and the lower end is large, that is, the front end and the rear end of the upper part of the guide groove 260 are protruding inward, and correspondingly, the projection of the slider 500 in the left and right directions is an I-shaped structure, so that the front end and the rear end of the upper part of the guide groove 260 are clamped in the two notches of the I-shaped slider 500, thereby preventing the slider 500 from deviating forward and backward and preventing the slider 500 from deviating up and down, ensuring that the slider 500 can only move in a straight line along the left and right directions, such as Figure 4 shown.

[0072] It is understandable that the connection hole 520 is located at the lower end of the slider 500. Figure 4 As shown, after the base 200, the slider 500 and the locking mechanism 400 are installed with each other, the connecting hole 520 and one end of the locking screw 420 are both located in the guide groove 260, so that the quick clamping device 100 has a simple structure.

[0073] It can be understood that the projection of the slider 500 in the up-down direction is in the shape of a U-shaped opening to the left, and the front and rear ends of the pressing head 300 are rotatably connected to the inner front side and the inner rear side of the U-shaped slider 500, respectively. Figure 1 shown.

[0074] It can be understood that the guide groove 260 extends to the right and connects to the right end surface of the base 200. Figure 3 As shown, the slider 500 is snap-fitted into the guide groove 260 through the right end surface of the base 200 , thereby completing the snap-fit ​​installation of the slider 500 and the base 200 .

[0075] It is understandable that the locking block 410 is provided with two mounting holes 700. Figure 1 As shown, the two mounting holes 700 are symmetrical in front and back and are through holes extending left and right. Correspondingly, the right end surface of the base 200 is also provided with two mounting holes 700, as shown in FIG. Figure 3 The mounting hole 700 is provided with a mounting bolt 710. Figure 1 As shown, the base 200 and the locking block 410 are fixedly connected by a threaded connection.

[0076] It is understandable that the two mounting holes 700 of the base 200 are symmetrically arranged front and back about the guide groove 260 to block the guide groove 260 and prevent the slider 500 from detaching from the right end surface of the base 200 .

[0077] In some embodiments, the clamping end 310 may be a left end surface of the clamping head 300 , so that the clamping head 300 directly abuts against the clamping wood block 600 through the left end surface.

[0078] In this embodiment, the clamping end 310 is extended toward the direction close to the second reference surface 220, that is, the clamping end 310 is extended to the left of the left end surface of the clamping head 300, and the side of the clamping end 310 facing the second reference surface 220 is provided with an abutment surface 320 for clamping the wood block 600. Figure 2 shown.

[0079] With such arrangement, when the pressing end 310 is tilted upward by the gravity of the right end of the pressing head 300, the tilting range is larger. When the pressing end 310 is clamping the wood block 600, the rotation range of the pressing end 310 is larger. When the abutting surface 320 is flush with the right end surface of the wood block 600, the wood block 600 is firmly clamped between the first flange 240 and the pressing head 300, which makes it easy for people to quickly determine whether the wood block 600 is firmly clamped.

[0080] It can be understood that the end face of the clamping head 300 facing the third reference plane 230 is in the same plane as the third reference plane 230, ensuring that when the front end face of the wood block 600 is flush with the third reference plane 230, the clamping head 300 can completely clamp the entire right end of the wood block 600 to prevent the wood block 600 from shifting to the left and right directions.

[0081] It is understandable that the left and right length of the second flange 250 is smaller than the length of the wooden block 600, so as to avoid the situation where the sliders 500 at the front and rear ends of the clamping head 300 abut against the second flange 250 when the clamping head 300 is clamping the wooden block 600, thereby causing the clamping head 300 to firmly clamp the wooden block 600 and the wooden block 600 to loosen or fall off during the engraving process.

[0082] It is understandable that the inner side of the locking hole 411 is provided with a rectangular thread, and correspondingly, the outer side of the locking screw 420 is provided with a matching rectangular thread. The rectangular thread has high transmission efficiency, and can quickly realize the left and right movement of the slider 500 when the locking screw 420 is twisted or electrically driven, thereby making the clamping and loosening of the wood block 600 faster and more convenient. The rectangular thread also has the advantage of low friction when subjected to force, making it easier for people to twist or electrically drive the locking screw 420 to rotate.

[0083] It is understandable that the base 200 is fixedly connected to the workbench. Specifically, the edge of the base 200 is provided with four fixing holes 270, and the four fixing holes 270 are distributed along a rectangular array, such as Figure 1 and Figure 3 The fixing hole 270 is equipped with a fixing screw 280, and the fixing screw 280 passes through the fixing hole 270 to fix the base 200 on the workbench. Figure 1 , Figure 2 and Figure 4 shown.

[0084] In some embodiments, the fixing screw 280 is a self-tapping screw, which can be directly passed through the base 200 without drilling a hole on the workbench, thereby fixing the base 200 on the workbench.

[0085] In other embodiments, screw holes need to be drilled on the workbench in advance, and the fixing screws 280 pass through the fixing holes 270 and are threadedly connected to the screw holes, so that the base 200 is stably mounted on the workbench.

[0086] In this embodiment, the fixing hole 270 located at the front end extends forward and is connected to the front end surface of the base 200, and the fixing hole 270 located at the rear end extends backward and is connected to the rear end surface of the base 200, so that the four fixing holes 270 are all bar holes, and the screw holes located on the workbench can correspond to bar holes, which is convenient for adjusting the relative installation position of the base 200 and the workbench.

[0087] It is understandable that after the fixing screw 280 connects the base 200 and the workbench, the screw head portion of the fixing screw 280 protruding outside the fixing hole 270 is lower than the first reference plane 210, avoiding the situation where the wooden block 600 cannot be placed horizontally on the first reference plane 210, or a vertex of the wooden block 600 cannot coincide with the tool reference point.

[0088] The preferred implementation methods of the utility model are described in detail above, but the invention of the utility model is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A quick clamping device, characterized in that: Included are: A base, wherein the upper end surface of the base is a horizontal first reference surface, two adjacent edges of the base protrude upward and respectively form a second reference surface and a third reference surface, and the first reference surface, the second reference surface and the third reference surface are perpendicular to each other; A locking mechanism, wherein the locking mechanism is connected to the base, and an output end of the locking mechanism moves linearly along a first direction; A clamping head, wherein the clamping head and the output end of the locking mechanism are hinged, a clamping end is provided at one end of the clamping head close to the second reference plane, the clamping end and the second reference plane are arranged along a first direction, and an end of the clamping head away from the second reference plane is heavier than an end thereof with the clamping end.

2. The quick clamping device according to claim 1, characterized in that: The output end of the locking mechanism is connected with a slider, the slider slides on the first reference surface, and the pressing head is hinged to the slider through a pin.

3. The quick clamping device according to claim 2, characterized in that: The locking mechanism includes a locking block and a locking screw. The locking block is connected to the base. The locking block is provided with a locking hole. The locking screw is threadedly passed through the locking hole. The locking screw is rotatably connected to the slider.

4. The quick clamping device according to claim 3, characterized in that: The sliding block is provided with a connecting hole, and the locking screw comprises a connecting rod and a threaded rod which are connected to each other. The diameter of the connecting rod is smaller than that of the threaded rod, and the connecting rod is passed through the connecting hole.

5. The quick clamping device according to claim 4, characterized in that: The base is provided with a guide groove communicating with the first reference surface, the guide groove extends along a first direction, and the lower end of the sliding block slides in the guide groove.

6. The quick clamping device according to claim 5, characterized in that: The guide groove is a stepped groove that is smaller at the top and larger at the bottom, the slider is an I-shaped structure, and the connecting hole is located at the lower end of the slider.

7. The quick clamping device according to claim 1, characterized in that: The pressing end is extended toward the direction close to the second reference surface and is provided with an abutting surface.

8. The quick clamping device according to claim 1, characterized in that: The end surface of the pressing head facing the third reference surface is in the same plane as the third reference surface.

9. The quick clamping device according to claim 3, characterized in that: The inner side surface of the locking hole and the outer side surface of the locking screw are both provided with matching rectangular threads.

10. The quick clamping device according to claim 1, characterized in that: Four fixing holes are arranged on the edge of the base, and the four fixing holes are distributed in a rectangular array. The fixing holes are equipped with fixing screws for connecting to the workbench.

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