CN115741167A - Support plate clamp and machine tool - Google Patents

Abstract

The invention discloses a support plate clamp and a machine tool. The support plate clamp includes a bracket; a positioning plate is arranged on the support, and the positioning plate is provided with a positioning pin; The end face away from the positioning plate; the bent plate, one end is fixedly connected to the bracket, and the other end extends away from the bracket; the expansion component includes a expansion block and two movable plates, the expansion block is passed through the bending plate, and the movable The plate is arranged on the curved plate, and the movable plate is provided with a first groove, the first groove matches the hole to be processed of the support plate, and the expansion block is arranged between the two movable plates and is against the two movable plates. Connect to prop up the movable board. The support plate is pressed between the gear bar and the positioning plate, and the two movable plates are stretched and pressed against the support plate to fix the support plate for drilling processing. It is completely fixed on the fixture to achieve accurate positioning, ensure machining accuracy and improve drilling efficiency.

Description

Support plate fixtures and machine tools

technical field

The invention relates to the field of mechanical processing, in particular to a support plate clamp and a machine tool.

Background technique

Fixtures are usually used to clamp the workpiece in the process of machining, so that it is in a fixed position for processing. It is a commonly used auxiliary tool in the process of machine tool operation. Among them, the support plate is a kind of automobile component, which is difficult to be positioned and clamped, and often easily affects the drilling accuracy and drilling efficiency. The support plate clamp is usually used to clamp the support plate for drilling processing.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes a support plate clamp, which can clamp the support plate to keep it stable during drilling and ensure the drilling accuracy.

The present invention also proposes a machine tool with the above-mentioned support plate clamp.

According to the embodiment of the first aspect of the present invention, the support plate clamp includes a bracket; a positioning plate is arranged on the bracket, and the positioning plate is provided with a positioning pin; a retaining bar is rotatably connected to the support, and the retaining The strip is used to compress the end face of the support plate away from the positioning plate; the bent plate is fixedly connected to the bracket at one end, and the other end extends away from the bracket; the expansion assembly includes a expansion block and two The movable plate, the expansion block is set on the curved plate, the movable plate is arranged on the curved plate, the first groove of the movable plate, the first groove and the support plate to be The processing holes are matched, and the expansion block is arranged between the two movable plates and abuts against the two movable plates to expand the movable plates.

The support plate clamp according to the embodiment of the present invention has at least the following beneficial effects: open the retaining strip on the bracket, cooperate the support plate with the positioning plate to be clamped on the support, the retaining bar rotates inwardly to press the support plate, and the support plate Press between the retaining bar and the positioning plate to limit its movement in the up and down and front and rear directions. The positioning pin cooperates with the support plate to limit the movement of the support plate in the left and right directions. One end of the support plate needs to be drilled to cover two movable plates, and the two The first movable plate is stretched and tightened to fix the support plate for drilling processing, and the support plate is completely fixed on the fixture by positioning and pressing and stretching and tightening, so as to achieve the effect of accurate positioning and ensure the processing accuracy. , improve drilling efficiency.

According to some embodiments of the present invention, the expansion block is provided with a first slope, the movable plate is provided with a second slope abutting against the first slope, and the movable plate is provided with a reset assembly.

According to some embodiments of the present invention, the reset assembly includes a fixed pin, a stop pin and a first spring, the support plate clamp also includes a clamping slide connected to the bent plate, and the movable plate is provided with a second Groove, the stop pin is arranged on the clamping slide seat and protrudes toward the second groove, one end of the fixing pin abuts against the wall surface of the second groove close to the expansion block, and the other end It is connected with the stop pin through the first spring.

According to some embodiments of the present invention, the support plate clamp further includes a thrust plate, the expansion assembly includes a first screw, the end of the bent plate away from the movable plate is connected to the thrust plate, and the first screw is connected to the thrust plate. A screw is connected to the end of the expansion block and passes through the thrust plate.

According to some embodiments of the present invention, the support plate clamp further includes a guide rod, the bracket is provided with a first through hole, and the guide rod is passed through the first through hole and extends in a direction away from the bracket , the retaining bar is sleeved on the guide rod and is slidably connected with the guide rod, and a second spring sleeved on the guide rod is provided between the retaining bar and the bracket.

According to some embodiments of the present invention, the retaining bar is provided with a stopper, and the stopper is arranged on the front end of the retaining bar, so as to press the support plate between the positioning plate and the stopper. Between, the end surface of the stopper away from the axial direction of the guide rod is a plane.

According to some embodiments of the present invention, there are two retaining strips, two guide rods and two second springs, two second springs are respectively sleeved on the guide rails, two The retaining strips are respectively arranged on both sides in the height direction of the bracket.

According to some embodiments of the present invention, the two retaining bars are respectively arranged on the upper and lower sides of the positioning plate, the stopper is arranged on the front side of the positioning plate, and the movable plate is vertically spaced apart from each other. set up.

According to some embodiments of the present invention, the front end surface of the positioning pin is provided with a limiting surface.

The machine tool according to the embodiment of the second aspect of the present invention includes the support plate clamp according to the above embodiment of the first aspect of the present invention.

The machine tool according to the embodiment of the present invention has at least the following beneficial effects: by using the above-mentioned support plate clamp, the support plate is clamped on the machine tool, the stability of drilling processing is improved, the drilling accuracy is ensured, and the working efficiency of the machine tool is improved.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is the sectional view of the support plate fixture of the embodiment of the present invention;

Fig. 2 is the enlarged schematic diagram of the structure at A place shown in Fig. 1;

Fig. 3 is a side sectional view of a support plate clamp according to an embodiment of the present invention;

Fig. 4 is a top sectional view of a support plate clamp according to an embodiment of the present invention

Fig. 5 is a cross-sectional view of the movable plate of the support plate clamp according to the embodiment of the present invention.

Reference signs:

support plate 100;

Bracket 200; first through hole 210;

Positioning plate 300; second through hole 310; positioning pin 311; limiting surface 3111;

Bar 400; Block 410;

Bending plate 500;

Expansion assembly 600; expansion block 610; first slope 611; movable plate 620; second slope 621; first groove 622; second groove 623; reset assembly 630; Spring 633; first screw 640; clamping slide 650; third groove 651; second pressure plate 660;

Thrust plate 700; Thrust groove 710;

guide rod 800; second spring 810;

Base 900;

sleeve 1000;

Dustproof board 1100;

The first platen 1200 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does 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 thus should not be construed as limiting the present invention.

In the description of the present invention, several means one or more, and multiple means two or more. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it 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 relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

Fixtures are usually used to clamp the workpiece in the process of machining, so that it is in a fixed position for processing. It is a commonly used auxiliary tool in the process of machine tool operation. Among them, the support plate is a kind of automobile component, which is difficult to be positioned and clamped, and often easily affects the drilling accuracy and drilling efficiency. The support plate clamp is usually used to clamp the support plate for drilling processing.

With reference to Fig. 1, the support plate fixture of the embodiment of the present invention comprises bracket 200, and positioning plate 300 is fixedly connected on bracket 200, and bracket 200 is provided with two retaining strips 400, and two retaining strips 400 are located at the upper and lower sides of positioning plate 300. side and protrudes from the bracket 200, the positioning plate 300 is provided with a through hole, the through hole is a stepped hole, the stepped surface of the stepped hole is used to fix and connect the positioning pin 311 by screws, and one end of the positioning pin 311 extends out from the front end of the positioning plate 300. The support plate 100 cooperates to limit the movement of the support plate 100 in the left and right direction. The support plate 100 is pressed between the retaining strip 400 and the positioning plate 300; One end is connected to the bracket 200, and the other end is connected to the expansion assembly 600 to brace and position the end of the support plate 100 that needs to be drilled; the expansion assembly 600 includes a expansion block 610 and two movable plates 620, the movable plate 620 is provided with a first groove 622. The first groove 622 is a U-shaped groove to prevent the machine tool from drilling the support plate 100. One end of the expansion block 610 is pierced through the curved plate 500, and the other end is covered by two movable plates 620. Clamping up and down, the expansion block 610 moves to the left to expand the two movable plates 620 upwards and downwards respectively to push against the positioning support plate 100, and the support plate 100 is thus completely fixed on the bracket 200 to complete the drilling process, clamping Stable, small vibration amplitude during processing, high drilling accuracy, and improve the processing efficiency of the machine tool.

It should be noted that this embodiment does not specifically limit the number of connecting bars 400 on the bracket 200, and only one bar 400 may be provided, specifically on the upper or lower side of the positioning plate 300; The upper and lower sides of the support plate 400 are provided with retaining bars 400, and each side does not limit the specific number of retaining bars 400, as long as the upper and lower sides of the support plate 100 can be clamped.

Specifically, referring to Fig. 1 and Fig. 5, the opposite end surfaces of the two movable plates 620 are at least partly formed as second inclined surfaces 621, and the upper end surface and the lower end surface of the stretching block 610 are respectively provided with first inclined surfaces 611 to cooperate with the movable plates 620 to support The opening block 610 has a groove for avoiding drilling. If the support plate 100 needs to be processed, move the opening block 610 to the left. As the first slope 611 and the second slope 621 contact and slide, the distance between the two movable plates 620 Farther and farther away, the movable plate 620 is stretched until the movable plate 620 supports the support plate 100; the movable plate 620 is provided with a second groove 623 for installing the reset component 630, and the support plate 100 needs to be pulled out to the right to open Block 610, the reset assembly 630 can make the two movable plates 620 close to each other, easily take out the drilled support plate 100, improve the clamping and taking speed of the support plate fixture, and improve the efficiency of drilling processing.

Referring to FIG. 2 , in some embodiments of the present invention, the reset assembly 630 is a fixed pin 631 , a stop pin 632 and a first spring 633 , and the clamping slide 650 is provided with a mounting hole, and the opening of the mounting hole communicates with the second groove 623 One end of the stopper pin 632 is arranged in the installation hole, and the other end extends toward the second groove 623. The stopper pin 632 is formed in a stepped shape along its axial direction, and the protruding stepped surface abuts against the left end surface of the clamping slide seat 650, so that the stopper pin 632 The pin 632 is fixed in the second groove 623, the first spring 633 is arranged between the stop pin 632 and the fixed pin 631, the fixed pin 631 can be pressed by the side wall of the second groove 623 close to the expansion block 610 so that Slide up and down in the two grooves 623 . When the support plate clamp clamps the support plate 100, the lower end of the fixing pin 631 is squeezed by the side wall of the second groove 623, and the accommodation space between the fixing pin 631 and the stop pin 632 of the first spring 633 is continuously reduced. The spring 633 is compressed; when the support plate 100 is removed from the expansion block 610, the first spring 633 resets, and the two movable plates 620 are pushed away from the support plate 100 to approach each other through the fixed pin 631, and the support plate 100 is convenient for clamping and taking, improving Drilling precision.

In some embodiments of the present invention, the right end surface of the bent plate 500 is connected to the thrust plate 700, the first screw 640 passes through the thrust plate 700 to connect the expansion block 610, and the left end surface of the thrust plate 700 is provided with a thrust groove 710, When the first screw 640 drives the expansion block 610 to move to the right, the bottom wall of the thrust groove 710 can limit the expansion block 610 to continue to move to the right, so as to ensure the rationality of the structure of the support plate clamp and save the installation cost in the process of repeated clamping. Clip time. Specifically, a pin is provided on the end of the first screw 640 away from the thrust plate 700, and the first screw 640 is threadedly engaged with the thrust plate 700. The left end of the first screw 640 is spherical and installed in the expansion block 610. The pin rotates the first screw 640 to push in or pull out the spreader block 610 .

Specifically, the upper end surface of the curved plate 500 is connected to the dustproof plate 1100, and the dustproof plate 1100 extends from the upper end surface of the curved plate 500 to the upper end surface of the movable plate 620, preventing dust from entering the expansion assembly 600 and affecting the expansion and tightening of the support plate fixture. Extend the life of the fixture.

Referring to FIG. 3 , in some embodiments of the present invention, the bracket 200 installs the guide rod 800 by opening the first through hole 210, the guide rod 800 is used to install the bar 400, and a second spring is installed between the bar 400 and the bracket 200 810, the second spring 810 is sleeved on the guide rail 800, the end of the guide rod 800 away from the bracket 200 is connected to a hexagon nut, and the relative position of the stop bar 400 on the guide rod 800 can be adjusted through the hex nut, the stop bar 400 slides backward, and the stop bar 400 The rear end of the bar 400 compresses the second spring 810, and the retaining bar 400 presses the support plate 100 and then tightens the hex nut, and the support plate 100 is fixed on the bracket 200; 400 away from the support plate 100, the second spring 810 resets, and the support plate 100 is taken out. The second spring 810 is installed between the retaining bar 400 and the bracket 200 to increase the adjustability of the support plate clamp, and fix the support plate 100 on the clamp to facilitate drilling. In the embodiment shown in FIG. 3 , the support plate clamp includes a first pressing plate 1200, which is arranged behind the bracket 200, the guide rod 800 is fixedly connected with the first pressing plate 1200 through a hinge pin and a cotter pin, and the retaining strip 400 is installed on the Inside the sleeve 1000 , the sleeve 1000 is fixedly connected to the bracket 200 , and the retaining strip 400 slides along the guide rod 800 inside the sleeve 1000 .

Specifically, the bar 400 is provided with a stopper 410, the stopper 410 is arranged at the front end of the bar 400 and protrudes in the circumferential direction of the bar 400, the end of the bar 400 away from the guide rod 800 is a plane, and the plane and the support plate 100 is clamped with a plane, and the stopper 410 can rotate on the guide rod 800 along with the retaining bar 400, and the stopper 410 can be rotated to an end far away from the center of the bracket 200 to facilitate the support plate 100 to cooperate with the positioning plate 300 to be put into the fixture. The plane of the stopper 410 is parallel to the plane of the support plate 100, and the stop bar 400 is pushed backward, the plane of the stopper 410 is completely pressed against the plane of the support plate 100, and the stopper 410 remains in contact with the plane of the support plate 100 during processing. connection, the clamping is stable, the clamping speed of the support plate 100 is improved, and the efficiency of the drilling process is improved.

Specifically, the upper and lower ends of the bracket 200 are respectively equipped with guide rods 800 to connect the retaining bars 400, and the middle is fixedly connected with the positioning plate 300. The support plate clamp includes the guide rods 800, the second spring 810, the sleeve 1000, the retaining bars 400 and the stoppers 410. The quantity is two, the guide rod 800, the second spring 810, the sleeve 1000, the retaining bar 400 and the stopper 410 are symmetrical up and down about the axial direction of the positioning pin 311, so that the retaining bar 400 can align itself from the top and bottom of the support plate 100. For clamping, the support plate 100 is fixed between the stopper 410 and the positioning plate 300 .

Referring to Fig. 4, the bracket 200 is installed on the base 900, and the base 900 is fixedly connected to the machine tool. One end of the bracket 200 is connected to the base 900, and one end extends vertically away from the base 900. The bracket 200 is provided with reinforcing ribs connected to the two ends. The support plate 100 is horizontally placed on the movable plate 620 by clamping the surface to be processed, adapting to the shape characteristics of the support plate 100, and stably clamping the support plate 100 for processing.

In some embodiments of the present invention, the positioning pin 311 is provided with two limiting surfaces 3111, and the two limiting surfaces 3111 protrude from the front end of the positioning pin 311 to further improve the clamping accuracy of the support plate 100, and the support plate 100 passes through The limiting surface 3111 can quickly match with the positioning plate 300 to further increase the clamping speed.

In the embodiment shown in FIG. 4 , the bent plate 500 is also sequentially connected to the clamping slide 650 and the second pressing plate 660 , the clamping slide 650 is provided with a third groove 651 , and the second pressing plate 660 is connected to the clamping slide 650 The left end surface of the second pressing plate 660 cooperates with the bottom wall of the third groove 651 to form a track for the movable plate 620 to slide up and down. One end of the movable plate 620 is vertically connected to the clamping slide 650 , and is provided with a second groove 623 for matching with the track. The movable plate 620 slides in the track defined by the second pressing plate 660 and the clamping slide 650, which ensures the sliding range of the movable plate 620 and makes the structure of the support plate clamp more compact.

Specifically, the use process of the support plate fixture is: twist the hexagonal nut to slide the stop bar 400 forward from the guide rod 800, the stop block 410 is far away from the center of the positioning plate 300, the support plate 100 cooperates with the positioning pin 311, and is installed on the positioning plate 300 to make the support plate 100 in the working position, turn the hexagon nut to make the stop bar 400 slide backward from the guide rod 800 to compress the second spring 810, and tighten the hexagon nut when the stopper 410 presses the support plate 100. At one end of the support plate 100 to be drilled, the first screw 640 is rotated by the pin, and the first screw 640 is threadedly matched with the thrust plate 700 to generate a displacement, and the propulsion block 610 is pushed to open the two movable plates 620, and the two movable plates 620 braces the support plate 100 upwards and downwards respectively, and completes the positioning of the support plate 100 . After the drilling process is completed, rotate the first screw 640 through the pin to pull the expansion block 610 to withdraw from the movable plate 620 along the first inclined plane 611, and the two movable plates 620 reset under the action of the first spring 633, leave the support plate 100, and twist The hexagonal nut makes the stop bar 400 slide forward from the guide rod 800, the stop block 410 is far away from the center of the positioning plate 300, and the support plate 100 is removed. The support plate fixture of the embodiment of the present invention is quick and convenient to clamp and take, and the support plate The fixture has a compact structure and stable clamping, which can improve the drilling accuracy and reduce errors.

The machine tool of the embodiment of the present invention includes the support plate clamp of the above embodiment.

In the machine tool of the embodiment of the present invention, by adopting the above-mentioned support plate fixture, the support plate 100 is pressed between the retaining bar 400 and the positioning plate 300, and the end that needs to be drilled is braced and fixed by the expansion assembly 600, and the structure is compact. Strong adjustability, the support plate 100 is completely fixed on the support plate fixture, the positioning accuracy is high, the drilling accuracy can be well guaranteed during drilling, and the operation efficiency of the machine tool is improved.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the gist of the present invention. kind of change.

Claims (10)

1. A plate clamp, comprising:

a support;

the positioning plate is arranged on the bracket and provided with a positioning pin;

the barrier strip is rotatably connected to the bracket and used for pressing the end face of the support plate away from the positioning plate;

one end of the bent plate is fixedly connected to the support, and the other end of the bent plate extends towards the direction far away from the support;

the strutting assembly comprises a strutting block and two movable plates, wherein the strutting block is arranged in the bent plate in a penetrating mode, the movable plates are arranged on the bent plate, the movable plates are provided with first grooves, the first grooves are matched with holes to be machined of the supporting plates, the strutting block is arranged between the movable plates and is abutted against the movable plates to strut the movable plates.

2. The plate clamp of claim 1, wherein the spreader block defines a first inclined surface, the movable plate defines a second inclined surface in abutment with the first inclined surface, and the movable plate defines a reset assembly.

3. The plate clamp of claim 2, wherein the return assembly comprises a fixed pin, a stop pin, and a first spring, the plate clamp further comprises a clamping slide connected to the bent plate, the movable plate is provided with a second groove, the stop pin is disposed in the clamping slide and extends toward the second groove, one end of the fixed pin abuts against a wall surface of the second groove close to the spreader block, and the other end of the fixed pin is connected to the stop pin through the first spring.

4. The plate clamp of claim 1, further comprising a thrust plate, wherein the spreader assembly includes a first screw, wherein an end of the bent plate distal from the movable plate is coupled to the thrust plate, and wherein the first screw is coupled to an end of the spreader block and disposed through the thrust plate.

5. The plate clamp of claim 1, further comprising a guide rod, wherein the bracket defines a first through hole, the guide rod is disposed through the first through hole and extends in a direction away from the bracket, the stop bar is disposed around the guide rod and slidably coupled to the guide rod, and a second spring disposed between the stop bar and the bracket and disposed around the guide rod.

6. A plate clamp according to claim 5 wherein the stop bar is provided with a stop at a front end face thereof for pressing the plate between the locating plate and the stop, the end face of the stop away from the guide rod in the axial direction being planar.

7. The plate clamp of claim 6, wherein there are two stop bars, two guide rods and two second springs, two second springs are respectively sleeved on the guide rods, and two stop bars are respectively arranged on two sides of the bracket in the height direction.

8. The plate clamp of claim 7, wherein the two stop bars are respectively disposed on upper and lower sides of the positioning plate, the stop block is disposed on a front side of the positioning plate, and the movable plate is vertically spaced apart from each other.

9. The plating jig of claim 1 wherein the front face of the dowel pin is provided with a stop surface.

10. A machine tool comprising a plate clamp according to any one of claims 1 to 9.

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