CN106346274B - Combined clamping device - Google Patents

Abstract

A combined clamping device comprises a bottom plate, at least two clamps, a connecting seat and a clamping body. The bottom plate is provided with the bar spout and with the bar spout on the interval be provided with two at least spacing draw-in grooves, anchor clamps include: the connecting seat, the connecting seat include pedestal and fastening bolt, and the pedestal has the installation face of carrying on the back mutually and connects the face, and fastening bolt includes peg and stopper, connects the bottom of the spacing draw-in groove of face butt, peg and screw spiro union cooperation. The clamping body comprises a functional piece and a clamping piece, the functional piece comprises a shell and a functional assembly, and the clamping piece comprises a fixed clamping piece and a free clamping piece. On one hand, the clamp saves the need of additionally arranging a fastening bolt during assembly; on the other hand, the gap between the fixed clamping piece and the free clamping piece is slowly reduced, the part to be processed between the fixed clamping piece and the free clamping piece is clamped, the clamping stability is high, and the subsequent processing operation of the part to be processed is facilitated.

Description

Combined clamping device

technical field

The invention relates to the field of clamping technology, in particular to a combined clamping device.

Background technique

With the development of science and technology and social economy, the progress of science and technology is affecting the social economy and changing people's way of life. The development of clamping technology, especially fixture technology, has a profound impact on the field of clamping technology. At present, in the production process of each product, a set of special fixtures will be made at each production station, through which the workpiece is positioned and clamped, so as to adapt to the precise operation of the equipment to process the workpiece.

However, traditional fixtures often have complex structures in order to obtain positioning accuracy, which brings a lot of inconvenience to users who operate the fixtures. At the same time, when the production line is changed, not only the fixtures need to be manually disassembled, but also the replacement fixtures need to carefully adjust the positioning accuracy. This not only results in long fixture production cycle and high production cost, but also time-consuming and labor-intensive replacement of the fixture.

Contents of the invention

Based on this, it is necessary to provide a combined clamping device for the technical problems of how to simplify the structure and how to improve the stability of the clamping.

A combined clamping device includes a bottom plate, at least two clamps, a connecting seat and a clamping body. The bottom plate is provided with a strip-shaped chute and at least two limiting slots are arranged on the strip-shaped chute at intervals, and the limiting slots are provided with screw holes with internal threads. Each of the clamps is correspondingly arranged in one of the limiting slots, and the clamps include: a connecting seat, the connecting seat includes a seat body and fastening bolts, and the seat body has a mounting surface and a connecting surface opposite to each other , the seat body is provided with a mounting groove on the mounting surface, the seat body is provided with a mounting port passing through the mounting surface and the connecting surface, and the fastening bolt includes a bolt rod and a limit block, The bolt rod is passed through the installation port, the bolt rod has a threaded rod body and a rod cap arranged at the fixed end of the threaded rod body, the limit block is movably arranged on the rod body away from the rod cap, The rod cap is located on one side of the installation surface, the limit block is located on the side of the connection surface, the outer diameter of the limit block is larger than the inner diameter of the installation port, and the connection surface abuts against the limit block. The bottom of the bit card slot, the bolt rod is screwed and fitted with the screw hole. A clamping body, the clamping body includes a functional part and a clamping part, the functional part includes a housing and a functional component, the housing is embedded in the installation groove, and the functional component is arranged in the housing , the functional assembly includes a telescopic mechanism, a fixed terminal and a free terminal, the telescopic mechanism and the fixed terminal are respectively connected to the housing, the free terminal is arranged on the telescopic end of the telescopic mechanism, and the clip The holder includes a fixed clip and a free clip, the fixed clip is connected to the fixed terminal, the free clip is connected to the free terminal, and is used to drive the free clip when the telescopic mechanism is working Move towards the direction of the retaining clip.

In one of the embodiments, the bottom plate is a cuboid structure.

In one of the embodiments, the bar-shaped sliding groove is extended along the length direction of the bottom plate.

In one of the embodiments, the axis of the strip chute and the axis of the bottom plate are located on the same straight line.

In one of the embodiments, the width of the limiting slot is greater than the width of the bar-shaped sliding slot.

In one of the embodiments, the screw hole is opened in the central area of the limiting slot.

The above-mentioned combined clamping device is provided with at least two limit card slots at intervals on the bar-shaped chute of the bottom plate, each of the clamps is correspondingly arranged in one of the limit card slots, and the clamping seat is provided on the connecting seat of the clamp. Body, using the clamping body to clamp the parts to be processed. On the one hand, the connecting seat includes a seat body and fastening bolts, which eliminates the need for additional fastening bolts during assembly, and the seat body has opposite mounting surfaces and connecting surfaces. , the rod cap is located on the side of the mounting surface, and the limit block is located on the side of the connection surface. The outer diameter of the limit block is larger than the inner diameter of the installation port, so that the fastening bolts will not fall off on the seat body; The free clamp moves towards the fixed clamp. In this process, only the free clamp moves. When the parts to be processed are clamped, the parts to be processed are placed close to the fixed clamp, so that the gap between the fixed clamp and the free clamp The gap between the clamps gradually decreases and clamps the parts to be processed between the fixed clamp and the free clamp. The clamping stability is high, which is beneficial to the subsequent processing of the parts to be processed.

Description of drawings

Fig. 1 is the structural representation of fixture in an embodiment;

Fig. 2 is a schematic structural view of a connecting seat in an embodiment;

Fig. 3 is a schematic structural view of a clamping body in an embodiment;

Fig. 4 is the partial structure schematic diagram of fixture in an embodiment;

Fig. 5 is a schematic structural view of a combined clamping device in an embodiment;

Fig. 6 is a structural schematic diagram of a combined clamping device applied to a milling machine in one embodiment;

Fig. 7 is a schematic structural view of the bed body in an embodiment.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiment.

Please refer to FIG. 1 , which is a schematic structural view of a clamp 10 in an embodiment. For example, a clamp 10 includes a connecting base 101 and a clamping body 102 , and the connecting base 101 is connected to the clamping body 102 . The connection base 101 is used for installation and fixing on the outside. The clamping body 102 is used for clamping an object placed in the clamping body 102 . For example, by arranging the clamping body 102 on the connection base 101 , the component to be processed or other objects to be clamped can be clamped by the clamping body 102 . It can be understood that the clamped object is in a static state, and when the clamped object is a component to be processed, the component to be processed in a static state can be processed effectively. When the clamped object is an object to be clamped, the clamped object can be kept at rest and its original static state can be maintained.

Please refer to FIG. 2 , which is a schematic structural view of the connection base 101 in one embodiment. For example, the connection base 101 includes a base body 201 and fastening bolts 202 . The seat body 201 and the fastening bolt 202 on the existing market are sold separately, and need to be purchased again when the seat body 201 is installed to an external object. However, there are many types of the fastening bolt 202, and it is easy to buy mismatched ones. In order to improve the installation efficiency, for example, the fastening bolt 202 is embedded on the base body 201, so that the base body 201 itself carries the fastening bolt 202, and there is no need to arrange fastening bolts for the base body 201 in a supporting manner, and the mounting base body It is very convenient to connect the 201 to an external object, which is conducive to improving the installation efficiency of the seat body 201 .

To facilitate the installation of the clamping body 102, for example, the base body 201 is a rectangular parallelepiped. For example, the seat body 201 has opposite mounting surfaces 203 and connecting surfaces (not shown), for example, the seat body 201 is provided with a mounting groove 204 on the mounting surface 203, for example, the mounting groove 204 is arranged in the center area of the mounting surface 203 . For example, the central area of the installation surface is the center of the installation surface and its surrounding area. For example, the installation surface is an axisymmetric figure and has two symmetry axes, and the center of the installation surface is the intersection point of the two symmetry axes; The mounting surface is a centrally symmetrical figure. The area around the center of the installation surface, including the area similar to the figure of the installation surface, for example, its area is 10% to 70% of the area of the installation surface, for example, the center of the central area of the installation surface coincides with the center of the installation surface , and/or the area of the central area of the installation surface is 20%-60%, for example 50%, of the area of the installation surface. For example, the mounting surface has a rectangular structure, the center of the central area of the rectangular structure of the mounting surface coincides with the center of the rectangular structure of the mounting surface, and the area of the central area of the rectangular structure of the mounting surface is 20% of the area of the rectangular structure of the mounting surface % to 50%, for example 40%. And so on for other central areas. For example, the holding body 102 is disposed on the installation groove 204 . The installation groove 204, as the positioning area for setting the clamping body 102, can also be referred to as coordinates, and provides an area for the installation and setting of the clamping body 102, so that the clamping body 102 is conveniently arranged on the seat body 201 to realize Clamping function. For example, the seat body 201 is provided with a mounting groove 204, that is, the mounting groove penetrates the entire seat body, including the mounting surface and the connection surface, and the part of the seat body between the two surfaces to form a through groove for Connect the connection socket 101.

For the convenience of setting the fastening bolts 202, for example, the seat body 201 is provided with a mounting opening 205 that penetrates the mounting surface 203 and the connection surface, that is, the seat body 201 is provided with a mounting port 205, and the mounting port penetrates the entire seat body, including piercing The installation surface and the connecting surface, and the part of the base body between the two surfaces form a through opening for passing fastening bolts; for example, the installation opening 205 is adjacent to the installation groove 204 . In order to make the seat body 201 more stable and firm when connected to the outside, in this embodiment, the number of installation ports 205 is four, and correspondingly, the number of fastening bolts 202 is four, and each fastening bolt 202 is correspondingly arranged on one Port 205 is installed. For example, four installation openings 205 are evenly distributed adjacent to the installation groove 204 . In this way, through the four fastening bolts 202 , the force on the seat body 201 is uniform, and the seat body 201 is more stable and firm when installed on the outside.

In order to constrain the fastening bolt 202 on the seat body 201 , for example, the fastening bolt 202 includes a bolt rod 206 and a limiting block 207 . For example, the bolt rod 206 passes through the installation opening 205 . For example, the bolt rod 206 has a threaded rod body 208 and a rod cap 209 disposed at a fixed end of the threaded rod body 208 . For example, the limiting block 207 is movably disposed on the threaded rod body 208 away from the rod cap 209 , the rod cap 209 is located on the side of the mounting surface 203 , and the limiting block 207 is located on the side of the connecting surface. For example, the outer diameter of the limiting block 207 is larger than the inner diameter of the installation opening 205 to prevent the limiting block 207 from passing through the installation opening 205 . For example, the distance between the stopper 207 and the rod cap 209 is greater than the distance between the mounting surface 203 and the connection surface, so that there is a movable space between the threaded rod body 208 and the seat body 201, and because the stopper 207 is far away from the rod cap 209 is movably arranged on the threaded rod body 208 , the limiting block 207 will not affect the screwing function of the threaded rod body 208 , and the fastening bolt 202 is restricted on the seat body 201 .

Please refer to FIG. 3 , which is a schematic structural view of the clamping body 102 in one embodiment. For example, the clamping body 102 includes a functional part 301 and a clamping part 302. The clamping part 302 is connected with the functional part 301. The functional part 301 is used for The clamping part 302 is driven to clamp the object placed in the clamping space 303 of the clamping part 302 . Referring to FIG. 2 and FIG. 3 , in one embodiment, the shape and structure of the installation groove 204 matches the shape and structure of the functional component 301 . For example, the functional part 301 is snapped into the installation groove 204 and the functional part 301 is restricted in the installation groove 204 by setting screws in the installation groove 204 .

Please refer to FIG. 4 , which is a cross-sectional schematic diagram of the clamping body 102 in one embodiment. For example, the functional component 301 includes a housing 401 and a functional component 402 , and the housing 401 is inserted into the installation groove 204 . For example, the shape and structure of the installation groove 204 fits with the shape and structure of the housing 401 , for example, the housing 401 and the installation groove 204 are in tight fit; another example, the housing 401 and the installation groove 204 are in an interference fit. For example, the functional component 402 is disposed in the housing 401 . For example, the functional component 402 includes a telescopic mechanism 403 , a fixed terminal 404 and a free terminal 405 , the telescopic mechanism 403 and the fixed terminal 404 are respectively connected to the housing 401 , and the free terminal 405 is disposed on the telescopic end of the telescopic mechanism 403 . The telescopic mechanism 403 is used to drive the free terminal 405 to move towards the direction of the fixed terminal 404 during operation, that is, the telescopic mechanism 403 drives the free terminal 405 to move along the X direction when it is under force, and drives the free terminal 405 to move along the X direction when no force is applied. It can also be understood that the telescopic mechanism 403 drives the free terminal 405 to reciprocate in the X direction when stretching.

In this embodiment, the telescopic mechanism is an electric push rod, that is, a linear drive. It should be noted that the electric push rod can be considered as an extension of the structure of the rotary motor. For example, the electric push rod is a linear actuator composed of a motor push rod and a control device mechanism. In another example, the telescopic mechanism is a linear stepping motor. It should be noted that the linear stepper motor, also known as the linear stepper motor, is generated by the magnetic rotor core interacting with the pulsed electromagnetic field generated by the stator to generate rotation. The linear stepper motor converts rotational motion into linear motion inside the motor. . For example, the telescopic mechanism is powered by a power cord connected to an external power supply; another example is that the telescopic mechanism is powered by a battery, so as to realize power-on work.

In order to make the clamping part 302 clamp an external object, for example, the clamping part 302 includes a fixed clamping part 406 and a free clamping part 407, for example, the fixed clamping part 406 is connected with the fixed terminal 404, and the free clamping part 407 is connected with the free terminal 405 When the telescopic mechanism 403 works, it drives the free clamp 407 to move towards the direction of the fixed clamp 406, that is, when the telescopic mechanism 403 works, it drives the free clamp 407 to move in the direction of X. In this way, when the free clamp 407 moves toward the fixed clamp 406 The object placed in the clamping space 303 of the clamping member 302 can be clamped when moving in the same direction.

The above-mentioned clamp 10 is provided with a clamping body 102 on the connecting seat 101, and the parts to be processed are clamped by the clamping body 102. On the one hand, the connecting seat 101 includes a seat body 201 and a fastening bolt 202, eliminating the need for a It is necessary to additionally equip fastening bolts 202, and the seat body 201 has opposite installation surfaces 203 and connection surfaces, the rod cap 209 is located on the side of the installation surface 203, and the limit block 207 is located on the side of the connection surface, and the outer diameter of the limit block 207 is larger than The inner diameter of the installation port 205 makes the fastening bolt 202 not fall off on the seat body 201; Movement, when clamping the parts to be processed, the parts to be processed are placed close to the fixed clamp 406, so that the gap between the fixed clamp 406 and the free clamp 407 is slowly reduced and clamped between the fixed clamp 406 and the free clamp 407. The parts to be processed between the free clamps 407 have high clamping stability, which is beneficial to the subsequent processing of the parts to be processed.

Because the telescopic end of the telescopic mechanism 403 is only connected with the free clamp 407, the free clamp 407 will inevitably deviate under the influence of friction in the process of driving the free clamp 407 to move along the direction of X when the telescopic mechanism 403 works. To minimize the deviation of the free clamp 407 , as shown in FIG. 4 , the clamp body 102 also includes a positioning bar 410 . For example, the free clip 407 is provided with a first positioning frame 421 and a first elastic member 422 . For example, the first elastic member 422 is accommodated in the first positioning frame 421 , one end of the first elastic member 422 is fixed on the bottom of the first positioning frame 421 , and the other end of the first elastic member 422 is connected to one end of the positioning bar 410 . For example, the fixing clip 406 is provided with a second positioning frame 431 and a second elastic member 432 . One end of the second elastic member 432 is fixed on the bottom of the second positioning frame 431 , and the other end of the second elastic member 432 is connected to the other end of the positioning bar 410 . For example, the first elastic member 422 and the second elastic member 432 are springs. For example, the cross-sectional area of the positioning bar 410 is smaller than the cross-sectional areas of the first positioning frame 421 and the second positioning frame 431 . For example, the length of the positioning bar 410 is equal to the sum of the depths of the first positioning frame 421 and the second positioning frame 431 . In this way, when the telescopic mechanism 403 works, the free clamp 407 is driven to move along the X direction, under the guidance of the positioning bar 410, the first positioning frame 421 and the second positioning frame 431, the free clamp 407 will follow the predetermined The track travels, and at the same time, under the elastic action of the first elastic member 422 and the second elastic member 432, when the telescopic mechanism 403 stops working, the free clip 407 returns to its original position along the opposite direction of X, thereby minimizing The deviation of the free clamp 407 is reduced.

To improve the clamping effect, for example, teeth 440 are provided on opposite sides of the free clamping part 407 and the fixed clamping part 406 . For example, the tooth 440 has a right triangle structure. Further, in order to make the clamp of this embodiment suitable for clamping a cylinder or a quasi-cylindrical body with a preset outer diameter, for example, the free clamp 407 is provided with a first clamping notch 451, and the fixed clamp 406 is provided with a second clamp Holding notch 452, for example, the first clamping notch 451 has a semicircular cross section, for example, the second clamping notch 452 has a semicircular cross section, for example, the first clamping notch 451 and the second clamping notch 452 forms a circular second clamping space. In this way, since the first clamping notch 451 and the second clamping notch 452 form a circular second clamping space, it can adapt to clamping a cylinder or a quasi-cylindrical body with a preset outer diameter, effectively improving the practicability of the clamp.

Please refer to FIG. 5 , which is a schematic structural diagram of a combined clamping device in an embodiment. Referring to FIG. 1 and FIG. 5 , for example, a combined clamping device 20 includes a bottom plate 510 and at least two clamps 10 . For example, the bottom plate 510 is provided with a bar-shaped sliding slot 520 and at least two limiting slots 530 are arranged on the strip-shaped sliding slot 520 at intervals, and the limiting slots 530 are provided with screw holes with internal threads. For example, each clamp 10 is correspondingly arranged in a limit card slot 530, the clamp 10 includes a connecting seat 101, and the connecting seat 101 includes a seat body 201, and the seat body 201 has an opposite mounting surface 203 and a connecting surface (not shown in the figure) , the connecting surface abuts against the bottom of the limiting slot 530, and the bolt rod is screwed into the screw hole.

For example, the bottom plate 510 is a cuboid structure. For example, the strip slide groove 520 is extended along the length direction of the bottom plate 510 . For example, the axis of the bar-shaped sliding groove 520 and the axis of the bottom plate 510 are located on the same straight line. For example, the width of the limit card slot 530 is greater than the width of the bar slide slot 520 . For example, the screw hole is opened in a central area of the limiting slot 530 . For example, the center of the central area of the limiting slot coincides with the center of the limiting slot, and/or the area of the central area of the limiting slot is 10% to 60%, such as 50%, of the area of the limiting slot. For example, the limit card slot has a rectangular structure, the center of the central area of the rectangular structure of the limit card slot coincides with the center of the rectangular structure of the limit card slot, and the area of the central area of the rectangular structure of the limit card slot is the limit The area of the rectangular structure of the locking slot is 20%-50%, for example 40%.

The above-mentioned combined clamping device is provided with at least two limit card slots at intervals on the bar-shaped chute of the bottom plate, each of the clamps is correspondingly arranged in one of the limit card slots, and the clamping seat is provided on the connecting seat of the clamp. Body, using the clamping body to clamp the parts to be processed. On the one hand, the connecting seat includes a seat body and fastening bolts, which eliminates the need for additional fastening bolts during assembly, and the seat body has opposite mounting surfaces and connecting surfaces. , the rod cap is located on the side of the mounting surface, and the limit block is located on the side of the connection surface. The outer diameter of the limit block is larger than the inner diameter of the installation port, so that the fastening bolts will not fall off on the seat body; The free clamp moves towards the fixed clamp. In this process, only the free clamp moves. When the parts to be processed are clamped, the parts to be processed are placed close to the fixed clamp, so that the gap between the fixed clamp and the free clamp The gap between the clamps gradually decreases and clamps the parts to be processed between the fixed clamp and the free clamp. The clamping stability is high, which is beneficial to the subsequent processing of the parts to be processed.

Please refer to Fig. 6, which is a structural schematic diagram of a combined clamping device applied to a milling machine in an embodiment. Taking the above-mentioned combined clamping device applied to a milling machine as an example, in combination with Fig. 1, Fig. 5 and Fig. 6, for example, A milling machine 30 includes a machine tool 610 and a combined clamping device 20 . For example, the combined clamping device 20 includes a bottom plate 510 and at least two clamps 10 . As shown in Figure 7, the machine tool 610 includes a bed body 701 and a work station 702, the bed body 701 is provided with a work area 703, the work station 702 is arranged on the work area 703, and on the work station 702 An installation bit 704 is provided. As shown in FIGS. 5 and 7 , the combined clamping device 20 is disposed on the installation position 704 , and the combined clamping device 20 includes: a bottom plate 510 and at least two clamps 10 . The bottom plate 510 is provided with a bar-shaped chute 520 and at least two limit card slots 530 are arranged on the bar-shaped chute 520 at intervals, and the limit card slot 530 is provided with a screw hole with an internal thread. The bottom plate 510 is welded to the mounting position 704 . Each of the clips 10 is correspondingly disposed in one of the limiting slots 530 . The connecting surface abuts against the bottom of the limiting slot 530 , and the bolt rod is screwed into the screw hole.

In order to realize the lighting function, for example, the workstation 702 is provided with an LED lighting device, and the lighting direction of the LED lighting device faces the installation location 704 . For example, the bed body 701 includes a bed board and four bed legs, the four bed legs are evenly arranged on the same side of the bed board, and the bed board is provided with the working area 703 opposite to the bed legs. For example, a storage space is formed between the four bed legs, and a storage room for storing tools processed by the machine tool 610 is arranged in the storage space. For example, the bed board is provided with an access port adjacent to the working area 703, and the access port communicates with the storage room. For example, there are two access openings, which are respectively arranged on two sides of the working area 703 .

The above-mentioned milling machine is provided with a work area 703 on the bed body 701, the station 702 is arranged on the work area 703, the station 702 is provided with an installation position 704, and the combined clamping device 20 is arranged on the installation On position 704, at least two limit card slots are arranged at intervals on the bar-shaped chute of the bottom plate of the combined clamping device 20, and each of the clamps is correspondingly arranged in one of the limit card slots, and the connecting seat of the clamp is provided with The clamping body uses the clamping body to clamp the parts to be processed. On the one hand, the connecting seat includes a seat body and fastening bolts, which eliminates the need for additional fastening bolts during assembly, and the seat body has opposite mounting surfaces and On the connection surface, the rod cap is located on the side of the installation surface, and the limit block is located on the side of the connection surface. The outer diameter of the limit block is larger than the inner diameter of the installation port, so that the fastening bolts will not fall off on the seat body; on the other hand, by working on the telescopic mechanism At this time, the free clamp is driven to move towards the direction of the fixed clamp. In this process, only the free clamp moves. When the parts to be processed are clamped, the parts to be processed are placed close to the fixed clamp, so that the fixed clamp and the free clamp The gap between the parts gradually decreases and the parts to be processed between the fixed clip and the free clip are clamped. The clamping stability is high, which is beneficial to the subsequent processing of the parts to be processed.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (6)

1. A combination clamping device, characterized in that, comprising: Bottom plate, the bottom plate is provided with a bar-shaped chute and at least two limit card slots are arranged on the bar-shaped chute at intervals, and the limit card slot is provided with a screw hole with an internal thread; At least two clamps, each of the clamps is correspondingly arranged in one of the limiting slots, and the clamps include: A connecting seat, the connecting seat includes a seat body and fastening bolts, The seat body has opposite mounting surfaces and connecting surfaces, the seat body is provided with a mounting groove on the mounting surface, and the seat body is provided with a mounting port passing through the mounting surface and the connecting surface, The fastening bolt includes a bolt rod and a limit block, the bolt rod is passed through the installation port, the bolt rod has a threaded rod body and a rod cap arranged at a fixed end of the threaded rod body, The limiting block is movably arranged on the threaded rod body away from the rod cap, the rod cap is located on the side of the mounting surface, the limiting block is located on the connecting surface side, and the limiting block The outer diameter is larger than the inner diameter of the installation port, the connecting surface abuts against the bottom of the limiting slot, and the bolt rod is screw-fitted with the screw hole; A clamping body, the clamping body includes a functional part and a clamping part, The functional part includes a housing and a functional component, the housing is embedded in the installation groove, the functional component is arranged in the housing, the functional component includes a telescopic mechanism, a fixed terminal and a free terminal, the The telescopic mechanism and the fixed terminals are respectively connected to the housing, and the free terminals are arranged on the telescopic end of the telescopic mechanism, The clamping part includes a fixed clamping part and a free clamping part, the fixed clamping part is connected with the fixed terminal, and the free clamping part is connected with the free terminal, and is used to drive the The free clamp moves in the direction of the fixed clamp. 2. The combined clamping device according to claim 1, wherein the bottom plate is a cuboid structure. 3 . The combined clamping device according to claim 2 , wherein the strip-shaped sliding groove is extended along the length direction of the bottom plate. 4 . 4. The combined clamping device according to claim 3, characterized in that, the axis of the bar-shaped chute and the axis of the bottom plate are located on the same straight line. 5. The combined clamping device according to claim 4, characterized in that, the width of the limiting slot is larger than the width of the bar-shaped sliding slot. 6 . The combined clamping device according to claim 5 , wherein the screw hole is opened in a central area of the limiting slot. 7 .