CN210024453U

CN210024453U - Workpiece fixing tool for adjacent hole drilling

Info

Publication number: CN210024453U
Application number: CN201920778069.5U
Authority: CN
Inventors: 潘红恩
Original assignee: Nanjing Vocational College Of Information Technology
Current assignee: Nanjing Vocational College Of Information Technology
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-02-07
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses a frock is fixed to work piece of adjacent hole drilling, the technical problem of solution: the technical problem that a workpiece fixing clamp which is suitable for drilling holes with two radial exhaust holes arranged side by side on the cylinder body cylinder wall of an inner cylinder body of a hand-held pneumatic tool air pick and is suitable for being used on a drilling machine is lacked in the prior art mentioned in the background technology. According to the technical scheme, the workpiece fixing tool for drilling the adjacent holes comprises a base drill jig unit and a movable clamp, wherein the movable clamp is arranged on the base drill jig unit in a sliding mode. The advantages are that: according to the workpiece fixing tool for drilling the adjacent holes, the guide drill bushing is used for guiding the two adjacent machining holes, during drilling, the air cylinder is used for pushing the workpiece to be quickly and accurately replaced, the working efficiency is improved, and the service life of the drill bit is prolonged.

Description

Workpiece fixing tool for adjacent hole drilling

Technical Field

The utility model relates to a processing is equipped with, specifically is to the tool equipment that has two radial exhaust hole drilling usefulness of arranging side by side on the cylinder body section of thick bamboo wall on the hand-held type pneumatic tool pneumatic pick inner cylinder body.

Background

The rock drilling equipment is mainly used for breaking soft ores, breaking firm or cement buildings, mining clay and the like, and is mainly a pneumatic rock drilling tool. The cylinder body related to the design is one of main parts of the hand-held pneumatic tool air pick. The part has high precision requirement and more processing procedures. Wherein, the cylinder wall is provided with two radial exhaust holes 404 which are arranged side by side, the plane of the two holes is not vertical to the cylinder axis, the included angle is 75 degrees (see figure 6), the distance between the two holes is a (see figure 7), and the two parallel holes are processed on a drilling machine. Generally, a drill jig tool with two guide drill sleeves is designed, and a drill spindle is moved to enable a drill to be respectively aligned with the guide drill sleeves corresponding to two adjacent holes and punch the two holes, so that the efficiency of aligning the drill to the drill jig hole is low, the alignment precision is not high, and the abrasion of the drill and the guide sleeve is increased. In order to improve the machining efficiency of the two holes, it is necessary to design a proper double-hole machining tool.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that lack among the prior art to mention among the background art and be applicable to the drilling that has two radial exhaust holes of arranging side by side on the cylinder body section of thick bamboo wall to cylinder body in hand-held type pneumatic tool pneumatic pick and be applicable to the work piece mounting fixture's that uses on the drilling machine technical problem.

The utility model adopts the technical proposal that: a workpiece fixing tool for drilling adjacent holes comprises a base drill jig unit and a movable clamp, wherein the movable clamp is slidably arranged on the base drill jig unit;

the base drilling jig unit comprises an inclined base, a guide rail sliding block pair, a station conversion device and a drill bit guide device, wherein the guide rail sliding block pair is arranged on the inclined base, and the station conversion device is arranged on the inclined base and used for driving the movable fixture to integrally convert a station; the drill bit guide device is arranged on the inclined base to ensure that the axis of the drill bit is vertical;

the inclined base comprises a bottom plate, two first supporting plates, two second supporting plates and a base panel, the bottom plate is horizontally arranged, the two first supporting plates and the two second supporting plates are erected on the bottom plate in two rows, the heights of the two first supporting plates are lower than those of the two second supporting plates, the base panel is laid on the tops of the two first supporting plates and the tops of the two second supporting plates, the base panel is inclined, and an acute angle is formed between the base panel and the bottom plate;

the guide rail sliding block pair is arranged on the base panel and comprises two guide rails and at least one sliding block which is arranged on each guide rail in a sliding manner, and the two guide rails are arranged on the base panel in parallel;

the station conversion device comprises a first air cylinder and a limiting baffle, the first air cylinder is arranged on the bottom plate through an air cylinder support, the telescopic direction of a piston rod of the first air cylinder is parallel to the guide rails, the end part of the piston rod of the first air cylinder is connected with the movable clamp, and the piston rod of the first air cylinder telescopically pushes the movable clamp to integrally reciprocate along the two guide rails; the limiting baffle is arranged on the bottom plate and used for limiting the moving stroke of the first cylinder piston rod; the position of the limit baffle is set to ensure that the moving stroke of the first air cylinder piston rod is equal to the vertical hole distance between two adjacent holes on the workpiece to be machined;

the drill bit guide device is arranged on the base panel and comprises a vertical plate, a drilling template and a drill bushing, wherein the vertical plate is vertically arranged on the base panel, the vertical plate is positioned between the two guide rails, the drilling template is vertically arranged on the inner side surface of the vertical plate, the upper surface of the drilling template is parallel to the upper surface of the bottom plate, the lower surface of the drilling template is parallel to the upper surface of the base panel, a drilling template hole is formed in the drilling template, the drill bushing is embedded in the drilling template hole, and the axis of the drill bushing is perpendicular to the upper surface of the bottom plate;

the movable clamp comprises a base plate, a positioning assembly, a pressing mechanism, a swinging pressing plate and a pushing plate, wherein the back of the base plate is connected with all sliding blocks, the positioning assembly is arranged on the base plate and used for placing a workpiece to be machined, the swinging pressing plate is connected with the pressing mechanism, the pressing mechanism is arranged on the base plate, the pressing mechanism drives the swinging pressing plate to press the workpiece to be machined placed on the positioning assembly, the pushing plate is arranged on the back of the base plate, and the base plate is driven by a station conversion device to realize the conversion of the whole;

the positioning assembly comprises a vertical plate, an end face positioning plate, a first V-shaped block, a second V-shaped block and a diamond pin, the vertical plate is vertically arranged on the front face of the base plate and is positioned at the end part of the base plate in the length direction, the end face positioning plate is arranged on the inner side face of the vertical plate, the first V-shaped block and the second V-shaped block are arranged on the front face of the base plate at intervals, the V-shaped faces on the first V-shaped block and the second V-shaped block are coplanar, the first V-shaped block is close to the end face positioning plate, and a bolt hole for inserting the diamond pin is formed in the bottom face of a V-shaped notch of the first V-shaped block; the diamond pin is in sliding fit with the bolt hole;

the pressing mechanism comprises a mechanism bottom plate, a first hinged support, a hinged joint, a second cylinder and a second hinged support, the mechanism bottom plate is arranged at the edge of the base plate, the mechanism bottom plate is positioned at the edge of the base plate between the first V-shaped block and the second V-shaped block, the first hinged support is arranged on the mechanism bottom plate, the second cylinder is connected with the first hinged support through the hinged joint, the second hinged support is arranged at the end part of a piston rod of the first cylinder and is hinged through a first pin, and the second hinged support is connected with the swing pressing plate;

the swinging pressing plate comprises a swinging rod, a sleeve, a fork plate and a U-shaped supporting frame, the U-shaped supporting frame is arranged on a base plate between a first V-shaped block and a second V-shaped block, the opening of the U-shaped supporting frame is upward, one end of the swinging rod is connected with a second hinged support, the other end of the swinging rod is connected with the sleeve, a second pin is inserted into the sleeve, and two ends of the second pin are fixedly supported at the upper end parts of two supporting arms of the U-shaped supporting frame respectively; one end of the fork plate is connected with the sleeve, and the other end of the fork plate is positioned above the workpiece to be machined, which is placed on the positioning assembly;

the push plate is arranged on the back of the substrate, and the push plate extends into the lower part of the bottom plate through a notch formed in the bottom plate to be connected with a first cylinder piston rod.

The utility model discloses a frock, place the frock on the drilling machine workstation, make the drill bit of drilling machine main shaft aim at the drill bushing on the bushing plate; and placing the workpiece to be processed on the tool. The tool guides two adjacent machining holes by using one guide drill bushing, and when drilling, the first air cylinder is used for pushing the workpiece to quickly and accurately replace, so that the working efficiency is improved, and the service life of a drill bit is prolonged.

To the utility model discloses technical scheme's preferred, be provided with two sliders on the guide rail.

Right the utility model discloses technical scheme's preferred, pendulum rod and muffjoint department welding, fork board and muffjoint department welding.

The utility model has the advantages that:

according to the workpiece fixing tool for drilling the adjacent holes, the guide drill bushing is used for guiding the two adjacent machining holes, during drilling, the air cylinder is used for pushing the workpiece to be quickly and accurately replaced, the working efficiency is improved, and the service life of the drill bit is prolonged.

Drawings

Fig. 1 is a general view of a workpiece fixing tool for drilling adjacent holes (a drill and a workpiece to be machined are illustrated).

FIG. 2 is a general view of the workpiece of FIG. 1 after it has been converted to a station (showing the drill bit and the workpiece to be machined).

Fig. 3 is a schematic view of a base jig unit.

Fig. 4 is a schematic view of a moving clamp.

Fig. 5 is a schematic view of the moving jig (in which a member to be processed is illustrated).

Fig. 6 is a front view of the cylinder (with the radial vent holes to be machined partially cut away).

Fig. 7 is a perspective view of the cylinder block.

Detailed Description

The technical solution of the present invention is explained in detail below, but the scope of protection of the present invention is not limited to the embodiments.

In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with the accompanying drawings 1 to 7 and the detailed description.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 6 and 7, the cylinder is one of the main components of a hand-held pneumatic tool pick. The part is a cylinder part and has a plurality of processing procedures, and in fig. 6 and 7, 401, a cylinder outer cylindrical surface, 402, an end surface, 403, cylinder pin holes, 404 and exhaust holes (double holes to be processed).

Two radial exhaust holes 404 which are arranged side by side and are adjacent are arranged on the cylinder body wall, the plane of the two holes is not perpendicular to the cylinder body axis, the included angle is 75 degrees (see figure 6), the distance between the two holes is a (see figure 7), and the two parallel holes are formed on a drilling machine. Generally, a drill jig tool with two guide drill sleeves is designed, and a drill spindle is moved to enable a drill to be respectively aligned with the guide drill sleeves corresponding to two adjacent holes and punch the two holes, so that the efficiency of aligning the drill to the drill jig hole is low, the alignment precision is not high, and the abrasion of the drill and the guide sleeve is increased. In order to improve the machining efficiency of the two holes, it is necessary to design a proper double-hole machining tool.

As shown in fig. 1 and 2, the workpiece fixing tool for drilling adjacent holes in the embodiment includes a base jig unit 100 and a movable clamp 200, wherein the movable clamp 200 is slidably disposed on the base jig unit 100. The workpiece 400 is placed on the moving jig 200.

The use of this embodiment frock is arranged the frock in on the drilling machine workstation, makes the drill bit 300 of drilling machine main shaft aim at the drill bushing on the bushing plate. According to the tool, one guide drill bushing is used for guiding two adjacent machining holes, and during drilling, the first air cylinder is used for pushing the movable clamp 200 to drive the workpiece to be quickly and accurately replaced, so that the working efficiency is improved, and the service life of the drill bit is prolonged.

As shown in fig. 3, the base jig unit 100 includes an inclined base 110, a guide rail slider pair disposed on the inclined base 110, a station switching device disposed on the inclined base 110 for driving the movable fixture 200 to switch stations integrally, and a drill guide device; the drill guide is arranged on the inclined base 110 to ensure that the drill axis is vertical.

As shown in fig. 3, the tilting base 110 includes a bottom plate 111, two first support plates 112, two second support plates 112-1 and a base panel 113, the bottom plate 111 is horizontally disposed, the two first support plates 112 and the two second support plates 112-1 stand on the bottom plate 111 in two rows, the two first support plates 112 are lower than the two second support plates 112-1, the base panel 113 is laid on the tops of the two first support plates 112 and the two second support plates 112-1, the base panel 113 is tilted, and an acute angle is formed between the base panel 113 and the bottom plate 111; the acute angle is equal to the included angle between the surface of the to-be-processed two adjacent exhaust holes 400 on the to-be-processed workpiece (the cylinder body 400) and the vertical section of the cylinder body. As shown in fig. 6.

As shown in fig. 3, the base panel 113 is provided with a notch, which provides a space for the station changing device to flow out.

As shown in fig. 3, the guide rail slider pair is disposed on the base panel 113, and includes two guide rails 122 and two sliders 121 slidably disposed on each guide rail 122, and the two guide rails 122 are disposed on the base panel 113 in parallel.

As shown in fig. 3, the station switching device includes a first cylinder 131 and a limit baffle 133, the first cylinder 131 is disposed on the bottom plate 111 through a cylinder bracket 132, the telescopic direction of a piston rod of the first cylinder 131 is parallel to the guide rails 122, the end of the piston rod of the first cylinder 131 is connected to the movable clamp 200, and the piston rod of the first cylinder 131 telescopically pushes the movable clamp 200 to integrally reciprocate along the two guide rails 122; specifically, the end of the piston rod of the first cylinder 131 is connected with a push plate 241 in the movable clamp 200, and the expansion and contraction of the piston rod of the first cylinder 131 drives the movable clamp 200 and the workpiece to be processed (the cylinder 400) placed on the movable clamp 200 to move left and right integrally through the push plate 241. The limit baffle 133 is arranged on the bottom plate 111 and used for limiting the moving stroke of the piston rod of the first air cylinder 131; the position of the limit baffle 133 is set so that the moving stroke of the piston rod of the first cylinder 131 is equal to the vertical pitch between two adjacent holes on the workpiece to be machined. As shown in fig. 7.

As shown in fig. 3, the drill guide device is disposed on the base panel 113, the drill guide device includes a vertical plate 143, a drilling template 141 and a drill bushing 142, the vertical plate 143 is vertically disposed on the base panel 113, the vertical plate 143 is located between the two guide rails 122, the drilling template 141 is vertically disposed on an inner side surface of the vertical plate 143, an upper surface of the drilling template 141 is parallel to an upper surface of the base plate 111, a lower surface of the drilling template 141 is parallel to the upper surface of the base panel 113, a drill-template hole is formed in the drilling template 141, the drill bushing 142 is embedded in the drill-template hole, and an axis of the drill bushing 142 is perpendicular to the upper surface of the.

In this embodiment, the drill bit 300 of the spindle is aligned with the drill sleeve 142 of the drill plate to machine the exhaust hole 404 of the cylinder 400.

As shown in fig. 4 and 5, the movable fixture 200 includes a substrate 201, a positioning assembly 210, a pressing mechanism 220, a swinging pressing plate 230 and a pushing plate 241, the back of the substrate 201 is connected with all the sliders 121, the positioning assembly 210 is disposed on the substrate 201 and used for placing a workpiece 400 to be processed, the swinging pressing plate 230 is connected with the pressing mechanism 220, the pressing mechanism 220 is disposed on the substrate 201, the pressing mechanism 220 drives the swinging pressing plate 230 to press the workpiece 400 to be processed placed on the positioning assembly 210, the pushing plate 241 is disposed on the back of the substrate 201, and the substrate 201 is driven by a station switching device to realize the switching of the whole stations of the movable fixture 200.

As shown in fig. 4 and 5, the positioning assembly 210 includes a vertical plate 211, an end surface positioning plate 212, a first V-shaped block 213, a second V-shaped block 214 and a diamond-shaped pin 216, the vertical plate 211 is vertically disposed on the front surface of the base plate 201 and is located at the end of the base plate 201 in the length direction, the end surface positioning plate 212 is disposed on the inner side surface of the vertical plate 211, the first V-shaped block 213 and the second V-shaped block 214 are disposed on the front surface of the base plate 201 at intervals, the V-shaped surfaces of the first V-shaped block 213 and the second V-shaped block 214 are coplanar, the first V-shaped block 213 is close to the end surface positioning plate 212, and a latch hole 215 for inserting the diamond-shaped pin 216 is disposed on the bottom surface of the V-shaped notch of the first V-shaped block; diamond pins 216 are slidably engaged with latch holes 215.

The workpiece to be machined (cylinder 400) in this embodiment is placed on the first V-shaped block 213 and the second V-shaped block 214, the outer circumferential surface of the workpiece to be machined (cylinder 400) directly contacts the grooves of the two V-shaped blocks, the cylinder end surface 402 contacts the end surface positioning plate 212, the cylinder pin hole 403 faces upward, and the diamond-shaped pin 216 is inserted into the pin insertion hole 215 of the first V-shaped block 213 along the cylinder pin hole 403 to position the workpiece to be machined (cylinder 400). To avoid over-positioning in the direction of the cylinder axis, the flat faces on the diamond-shaped pins 216 face the end-face positioning plate 212.

As shown in fig. 4 and 5, the pressing mechanism 220 is disposed at one side of two "V" shaped blocks for driving the swing pressure plate 230 to press the member to be processed 400 placed on the positioning assembly 210. The pressing mechanism 220 includes a mechanism base plate 221, a first hinge support 222, a hinge joint 224, a second air cylinder 225 and a second hinge support 227, the mechanism base plate 221 is disposed at the edge of the base plate 201, the mechanism base plate 221 is located at the edge of the base plate 201 between the first V-shaped block 213 and the second V-shaped block 214, the first hinge support 222 is disposed on the mechanism base plate 221, the second air cylinder 225 is connected to the first hinge support 222 through the hinge joint 224, the second hinge support 227 is disposed at the end of a piston rod 226 of the second air cylinder 225 and is hinged through a first pin 228, and the second hinge support 227 is connected to the swing pressure plate 230.

The first hinge support 222 and the hinge 224 mentioned in the pressing mechanism 220 in this embodiment are conventional in the art, and the first hinge support 222 and the hinge 224 are hinged by a third pin 223.

As shown in fig. 4 and 5, the swing pressing plate 230 includes a swing link 231, a sleeve 232, a fork plate 233 and a "U" shaped support 229, the "U" shaped support 229 is disposed on the base plate 201 between the first "V" shaped block 213 and the second "V" shaped block 214, an opening of the "U" shaped support 229 faces upward, one end of the swing link 231 is connected to the second hinge support 227, the other end of the swing link 231 is connected to the sleeve 232, the connection between the swing link 231 and the sleeve 232 is welded, a second pin 234 is inserted into the sleeve 232, and two ends of the second pin 234 are respectively and fixedly supported at upper ends of two support arms of the "U" shaped support 229; one end of the fork plate 233 is connected with the sleeve 232, and the joint of the fork plate 233 and the sleeve 232 is welded. The other end of the fork plate 233 is positioned above the member to be machined 400 placed on the positioning assembly 210.

In this embodiment, the piston rod 226 of the second cylinder 225 moves upward to push the swing pressing plate 230 to tilt left, and the fork plate 233 presses the cylinder body 400 downward; the piston rod 226 of the second air cylinder 225 moves downwards to reset, the swinging pressure plate 230 is pulled to incline rightwards, and the fork plate 233 moves upwards to release the cylinder body 400.

As shown in fig. 4, the push plate 241 is disposed on the back surface of the substrate 201, and the push plate 241 extends into the bottom of the bottom plate 111 through a notch formed in the bottom plate 111 to connect with the piston rod of the first cylinder 131. The telescopic piston rod of the first air cylinder 131 drives the movable clamp 200 and the workpiece to be machined (the cylinder body 400) placed on the movable clamp 200 to integrally move left and right through the push plate 241, so that the rapid station switching of the workpiece to be machined (the cylinder body 400) is realized, and the machining of two adjacent exhaust holes 404 on the workpiece to be machined (the cylinder body 400) is realized.

The application process of this embodiment frock:

the tool is placed on the drill press table such that the drill bit 300 of the drill press spindle is aligned with the drill bushing 142 on the drill plate. The fixed base, i.e., the bottom plate 111 in the tool, is placed directly on the drilling machine table, and the base 111 is pressed by a pressing plate (pressing the base 111 by the pressing plate is a conventional technique).

The first cylinder 131 is brought to the initial position.

The second cylinder 225 is reset and the fork plate 223 moves upward. The cylinder body 400 is placed on the first V-shaped block 213 and the second V-shaped block 214, the outer circular surface of the workpiece to be machined (the cylinder body 400) directly contacts the grooves of the two V-shaped blocks, the cylinder body end surface 402 is contacted with the end surface positioning plate 212, the cylinder body pin hole 403 is upward, the diamond-shaped pin 216 is inserted into the pin inserting hole 215 on the first V-shaped block 213 along the cylinder body pin hole 403, and the positioning of the workpiece to be machined (the cylinder body 400) is realized.

The piston rod 226 of the second cylinder 225 moves upwards to push the swing pressing plate 230 to incline left, and the fork plate 233 presses the cylinder body 400.

The drilling spindle and coolant are turned on and a right hole (the right hole is defined as the right exhaust hole 404 in the embodiment of fig. 1 for the position where the cylinder 400 is placed) is drilled, and the drill bit is raised after the right hole is completed.

When the first air cylinder 131 works, the piston rod of the first air cylinder 131 extends out to drive the movable clamp 200 to move rightwards integrally for transposition, and then a left hole in the cylinder body is drilled. The drill bit 300 of the drilling spindle is aligned with the drill bushing 142 on the drill plate and a left hole is drilled.

After two holes are drilled, the second air cylinder 225 moves downwards to reset, the swing pressure plate 230 is pulled to incline rightwards, the fork plate 233 moves upwards to loosen the cylinder body 400, the cylinder body 400 with the processed holes is taken out, and scrap iron is removed; and placing the other cylinder body in the grooves of the two V-shaped blocks, enabling the end surface of the cylinder body to be in contact with the end surface positioning plate, enabling the pin hole of the cylinder body to face upwards, and inserting the diamond pin into the pin hole on the V-shaped block along the pin hole of the cylinder body.

And (3) starting the main shaft of the drilling machine and the cooling liquid, drilling a left hole, lifting the drill bit 300 after the left hole is finished, resetting the first air cylinder 131, retracting the piston rod of the first air cylinder 131, driving the whole movable clamp 200 to move leftwards for transposition, and drilling a right hole in the cylinder body. After two holes are drilled, the second air cylinder 225 moves downwards to reset, the swing pressure plate 230 is pulled to incline rightwards, the fork plate 233 moves upwards to loosen the cylinder body 400, the cylinder body 400 with the processed holes is taken out, and scrap iron is removed; the cylinder 400 is replaced again.

The drilling machine spindle and the coolant are started and a right hole is drilled, and after the right hole is completed, the drill bit 300 is lifted.

After two holes are drilled, the second air cylinder 225 moves downwards to reset, the swing pressure plate 230 is pulled to incline rightwards, the fork plate 233 moves upwards to loosen the cylinder body 400, the cylinder body 400 with the processed holes is taken out, and scrap iron is removed; the cylinder 400 is replaced again and the above operations are repeated.

According to the tool, one guide drill bushing is used for guiding two adjacent machining holes, and during drilling, the first air cylinder is used for pushing the workpiece to be quickly and accurately replaced, so that the working efficiency is improved, and the service life of a drill bit is prolonged.

Where not otherwise indicated herein, it will be appreciated that the invention is not limited to or by the prior art, but is capable of modifications and variations as will be apparent to those skilled in the art, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a frock is fixed to work piece in drilling of adjacent hole which characterized in that: the drilling jig comprises a base drilling jig unit (100) and a movable clamp (200), wherein the movable clamp (200) is arranged on the base drilling jig unit (100) in a sliding mode;

the base drilling jig unit (100) comprises an inclined base (110), a guide rail sliding block pair, a station conversion device and a drill bit guide device, wherein the guide rail sliding block pair is arranged on the inclined base (110), and the station conversion device is arranged on the inclined base (110) and used for driving the movable clamp (200) to integrally convert a station; the drill bit guide device is arranged on the inclined base (110) to ensure that the axis of the drill bit is vertical;

the inclined base (110) comprises a bottom plate (111), two first supporting plates (112), two second supporting plates (112-1) and a base panel (113), wherein the bottom plate (111) is horizontally arranged, the two first supporting plates (112) and the two second supporting plates (112-1) stand on the bottom plate (111) in two rows, the heights of the two first supporting plates (112) are lower than those of the two second supporting plates (112-1), the base panel (113) is laid on the tops of the two first supporting plates (112) and the two second supporting plates (112-1), the base panel (113) is inclined, and an acute angle is formed between the base panel (113) and the bottom plate (111);

the guide rail sliding block pair is arranged on the base panel (113), the guide rail sliding block pair comprises two guide rails (122) and at least one sliding block (121) which is arranged on each guide rail (122) in a sliding manner, and the two guide rails (122) are arranged on the base panel (113) in parallel;

the station switching device comprises a first air cylinder (131) and a limit baffle (133), the first air cylinder (131) is arranged on the bottom plate (111) through an air cylinder support (132), the telescopic direction of a piston rod of the first air cylinder (131) is parallel to the guide rails (122), the end part of the piston rod of the first air cylinder (131) is connected with the movable clamp (200), and the piston rod of the first air cylinder (131) telescopically pushes the movable clamp (200) to integrally reciprocate along the two guide rails (122); the limit baffle (133) is arranged on the bottom plate (111) and used for limiting the moving stroke of the piston rod of the first cylinder (131); the position of the limit baffle (133) is set to ensure that the moving stroke of the piston rod of the first air cylinder (131) is equal to the vertical pitch between two adjacent holes on the workpiece to be machined;

the drill bit guide device is arranged on the base panel (113), the drill bit guide device comprises a vertical plate (143), a drilling template (141) and a drill bushing (142), the vertical plate (143) is vertically arranged on the base panel (113), the vertical plate (143) is located between the two guide rails (122), the drilling template (141) is vertically arranged on the inner side surface of the vertical plate (143), the upper surface of the drilling template (141) is parallel to the upper surface of the bottom plate (111), the lower surface of the drilling template (141) is parallel to the upper surface of the base panel (113), a drill jig hole is formed in the drilling template (141), the drill bushing (142) is embedded into the drill jig hole, and the axis of the drill bushing (142) is perpendicular to the upper surface of the bottom plate (111);

the movable clamp (200) comprises a substrate (201), a positioning assembly (210), a pressing mechanism (220), a swinging pressing plate (230) and a pushing plate (241), wherein the back of the substrate (201) is connected with all sliding blocks (121), the positioning assembly (210) is arranged on the substrate (201) and used for placing a workpiece to be machined (400), the swinging pressing plate (230) is connected with the pressing mechanism (220), the pressing mechanism (220) is arranged on the substrate (201), the pressing mechanism (220) drives the swinging pressing plate (230) to press the workpiece to be machined (400) placed on the positioning assembly (210), the pushing plate (241) is arranged on the back of the substrate (201), and the substrate (201) is driven by a station conversion device to realize the conversion of the whole stations of the movable clamp (200);

the positioning assembly (210) comprises a vertical plate (211), an end face positioning plate (212), a first V-shaped block (213), a second V-shaped block (214) and a diamond pin (216), the vertical plate (211) is vertically arranged on the front face of the base plate (201) and is positioned at the end part of the length direction of the base plate (201), the end face positioning plate (212) is arranged on the inner side face of the vertical plate (211), the first V-shaped block (213) and the second V-shaped block (214) are arranged on the front face of the base plate (201) at intervals, V-shaped faces on the first V-shaped block (213) and the second V-shaped block (214) are coplanar, the first V-shaped block (213) is close to the end face positioning plate (212), and a bolt hole (215) for inserting the diamond pin (216) is formed in the bottom face of a V-shaped notch of the first V-shaped block (213); the diamond-shaped pin (216) is in sliding fit with the bolt hole (215);

the pressing mechanism (220) comprises a mechanism bottom plate (221), a first hinge support (222), a hinge joint (224), a second air cylinder (225) and a second hinge support (227), wherein the mechanism bottom plate (221) is arranged at the edge of the base plate (201), the mechanism bottom plate (221) is positioned at the edge of the base plate (201) between a first V-shaped block (213) and a second V-shaped block (214), the first hinge support (222) is arranged on the mechanism bottom plate (221), the second air cylinder (225) is connected with the first hinge support (222) through the hinge joint (224), the second hinge support (227) is arranged at the end part of a piston rod (226) of the second air cylinder (225) and is hinged through a first pin (228), and the second hinge support (227) is connected with the swinging pressure plate (230);

the swinging pressing plate (230) comprises a swinging rod (231), a sleeve (232), a fork plate (233) and a U-shaped support frame (229), the U-shaped support frame (229) is arranged on the base plate (201) between the first V-shaped block (213) and the second V-shaped block (214), the opening of the U-shaped support frame (229) faces upwards, one end of the swinging rod (231) is connected with the second hinged support (227), the other end of the swinging rod (231) is connected with the sleeve (232), a second pin (234) is inserted into the sleeve (232), and two ends of the second pin (234) are fixedly supported at the upper end parts of two supporting arms of the U-shaped support frame (229) respectively; one end of the fork plate (233) is connected with the sleeve (232), and the other end of the fork plate (233) is positioned above the workpiece (400) to be machined, which is placed on the positioning assembly (210);

the push plate (241) is arranged on the back of the substrate (201), and the push plate (241) extends into the lower part of the bottom plate (111) through a notch formed in the bottom plate (111) and is connected with a piston rod of the first air cylinder (131).

2. The workpiece fixing tool for drilling holes in adjacent holes is characterized in that two sliding blocks (121) are arranged on the guide rail (122).

3. The workpiece fixing tool for drilling holes in adjacent holes is characterized in that the joint of the swing rod (231) and the sleeve (232) is welded, and the joint of the fork plate (233) and the sleeve (232) is welded.