Drill jig for machining side hole of pin shaft

Abstract

The invention discloses a drill jig for pin shaft side hole machining, and relates to the technical field of mechanical manufacturing, the drill jig comprises a mounting plate and mounting holes formed in the four corners of the mounting plate, a fixing plate is fixedly mounted at the top of the mounting plate, and first guide rails are fixedly mounted on the two sides of the top of the fixing plate; a second guide rail is fixedly mounted in the middle of the top of the fixing plate, a fixing mechanism is slidably mounted at the top of the first guide rail, a mounting mechanism is slidably mounted at the top of the second guide rail, a butt joint part is mounted at the bottom of the clamping mechanism, and the clamping mechanism is detachably mounted at the top of the mounting mechanism through the butt joint part. According to the drill jig for machining the side holes of the pin shafts, through the arrangement of the clamping mechanism and the fixing mechanism, the drill jig can adapt to and fix the pin shafts with different diameters, through sliding installation of the fixing mechanism, the drill jig can adapt to the pin shafts with different lengths, and the applicability and stability of the drill jig are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing, and particularly to a drilling fixture for machining side holes of a pin shaft. Background Art

[0002] In the field of mechanical manufacturing, as a common connecting part, the pin shaft is widely used in various mechanical equipment. In many cases, it is necessary to machine side holes on the side of the pin shaft to meet the requirements of installing positioning pins, bolts or other connecting parts, so as to achieve reliable connection between components or specific functions. At present, in the process of machining side holes of the pin shaft, some problems are often faced.

[0003] Traditional processing methods often adopt simple clamping methods, such as directly using general fixtures such as vises to fix the pin shaft. This clamping method is difficult to ensure the precise positioning of the pin shaft during processing, and it is easy to cause the position accuracy and dimensional accuracy of the side holes to be difficult to meet the design requirements, thus affecting the service performance of the pin shaft and the overall assembly quality of the mechanical equipment.

[0004] On the other hand, for pin shafts of different specifications and sizes, due to the lack of a clamping scheme with strong versatility, it is often necessary to frequently replace the fixture, which not only increases the labor intensity of the operator, but also reduces the processing efficiency, prolongs the production cycle, and increases the production cost. Summary of the Invention

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A drilling fixture for machining side holes of a pin shaft, comprising:

[0006] A mounting plate, and mounting holes opened at the four corners of the mounting plate for fixing the mounting plate on a drilling machine. A fixing plate is fixedly mounted on the top of the mounting plate. First guide rails are fixedly mounted on both sides of the top of the fixing plate, and a second guide rail is fixedly mounted in the middle of the top of the fixing plate. The first guide rail and the second guide rail are perpendicularly arranged;

[0007] A fixing mechanism slidably mounted on the top of the first guide rail for fixing the pin shaft to prevent it from shaking during the machining of the side hole of the pin shaft and ensure the accuracy of the position during the machining of the side hole. The first guide rail provides a sliding track for the fixing mechanism, enabling the fixing mechanism to adjust its position according to the length of the pin shaft;

[0008] A mounting mechanism slidably mounted on the top of the second guide rail;

[0009] The clamping mechanism, a docking member is installed at the bottom of the clamping mechanism, and the clamping mechanism is detachably installed at the top of the installation mechanism through the docking member. The installation mechanism cooperates with the docking member to install the clamping mechanism. When pins of different specifications need to be processed, the installation height of the clamping mechanism can be adjusted through the installation mechanism and the docking member to adapt to the fixing mechanism, so that the pins can be stably placed.

[0010] Among them, the clamping mechanism includes a clamping ring and clamping members. The clamping members are installed at both ends of the clamping ring. A guiding hole is opened in the middle of the top of the clamping ring. The guiding hole provides guidance for drilling the side holes of the pin on the drilling machine to ensure the accuracy of the processing position. A chip receiving cylinder is detachably installed in the middle of the bottom of the clamping ring. The chip receiving cylinder is used to collect the chips generated during the processing. Annular grooves are opened on both sides of the inner wall of the clamping ring, and the clamping members are slidably installed inside the annular grooves.

[0011] Preferably, the fixing mechanism includes a positioning block and a pressing block. A first sliding groove is opened in the middle of the bottom of the positioning block. The positioning block is slidably installed on the top of the first guide rail through the first sliding groove. A V-shaped groove is opened in the middle of the top of the positioning block. The V-shaped groove is used to position the pin. Circular sliding grooves are opened on both sides of the top of the positioning block. Slide bars are fixedly connected to both sides of the bottom of the pressing block. The slide bars are slidably installed inside the circular sliding grooves. A fixing spring is fixedly connected between the bottom of the slide bar and the bottom of the inner cavity of the circular sliding groove. The distance between the positioning block and the pressing block is adjusted by sliding the slide bars inside the circular sliding grooves. The fixing spring provides a downward elastic force for the pressing block, so that the pressing block can tightly press the pin.

[0012] Preferably, a rubber pad is fixedly installed on the surface of the V-shaped groove, the lower surface of the pressing block is specifically an arc-shaped concave surface, and a protective pad is fixedly installed at the concave surface of the pressing block. The rubber pad and the protective pad increase the friction with the pin, prevent the pin from sliding during the processing, and reduce the wear of the pin.

[0013] Preferably, the installation mechanism includes installation blocks. The number of the installation blocks is two, and a locking member is installed between the two installation blocks. The locking member is arranged on both sides of the installation blocks. The locking member is used to fix the two installation blocks to ensure the stability of the installation mechanism. A second sliding groove is opened at the bottom of the installation block. The installation block is slidably installed on the top of the second guide rail through the second sliding groove. An installation groove is opened at the top of the installation block. A first toothed block is fixedly installed on the inner wall of the installation groove. A pressing strip is rotatably installed on the inner wall of the installation groove through a rotating shaft. A return spring is fixedly installed on the lower surface of the pressing strip. The other end of the return spring is fixedly installed on a connecting plate. The connecting plate is fixedly installed on the inner wall of the installation groove. The pressing strip makes the return spring contract under the extrusion of the rotating block, assisting in the installation and fixation of the docking member and the installation mechanism.

[0014] Preferably, the locking member includes a first locking block and a second locking block. The first locking block and the second locking block are respectively fixedly installed on the opposite surfaces of two mounting blocks. A first card slot is provided on the surface of the first locking block. A clamping block is fixedly installed on the surface of the second locking block. The clamping block is in clamping fit with the first card slot. A second card slot is provided at the top of the clamping block. A receiving groove is provided inside the first card slot. A locking spring is fixedly installed inside the receiving groove. The other end of the locking spring is fixedly connected to a card strip. The card strip is in clamping fit with the second card slot.

[0015] Preferably, an unlocking groove is provided on the surface of the first locking block. The unlocking groove is arranged adjacent to the first card slot and is communicated with the receiving groove. An unlocking rod is fixedly connected to the outer surface of the card strip. The unlocking rod is slidably installed inside the unlocking groove. The unlocking rod and the unlocking groove enable the locking member to release the locking state, facilitating the adjustment of the clamping mechanism.

[0016] Preferably, the clamping member includes an elastic telescopic rod, a clamping piece and a connecting frame. The elastic telescopic rods are fixedly connected to both sides of the clamping piece. The other ends of the elastic telescopic rods are fixedly connected to the inner wall of the clamping ring. Both ends of the connecting frame are rotatably installed with pressing cylinders through rotating shafts. The pressing cylinders are in pressing fit with the clamping piece. A rotating rod is rotatably installed in the middle of the connecting frame through a rotating shaft. The number of the rotating rods is two, and a clamping spring is fixedly connected between the two rotating rods.

[0017] Preferably, a roller is rotatably installed at the end of the rotating rod away from the connecting frame. The roller is slidably installed inside the annular groove. The roller and the annular groove ensure the smooth rotation of the rotating rod.

[0018] Preferably, the docking member includes a fixed block. The fixed block is fixedly installed at the bottom of the clamping ring. Both sides of the fixed block are rotatably installed with rotating blocks through rotating shafts. A second toothed block is fixedly installed on one side of the rotating block. The second toothed block is meshed with the first toothed block to realize the fixation and height adjustment of the docking member and the installation mechanism.

[0019] Preferably, the bottom of one side of the rotating block is an inclined surface, and the inclined surface is arranged opposite to the second toothed block. The pressing strip is in pressing fit with the inclined surface of the rotating block. When the rotating block is inserted into the installation slot, the second toothed block contacts the first toothed block, and the pressing strip will rotate as the rotating block rotates. The elastic force of the return spring makes the pressing strip always maintain a certain pressure on the rotating block, making the meshing between the second toothed block and the first toothed block more stable.

[0020] The present invention provides a drilling fixture for machining side holes of a pin shaft. It has the following beneficial effects:

[0021] 1. The drill fixture for machining the side holes of the pin shaft, through the setting of the fixing mechanism, the rubber pad on the surface of the V-shaped groove can increase the friction force to prevent the pin shaft from sliding. The two positioning blocks can slide on the top of the first guide rail to adapt to pin shafts of different lengths. The sliding rods on both sides of the bottom of the pressing block are slidably installed in the circular chute. The elastic force of the fixing spring causes the pressing block to press down. The arc-shaped concave surface and the protective pad on its lower surface can better fit the pin shaft to further fix the pin shaft and prevent it from shaking during machining. The fixing mechanism can slide the positioning blocks according to the length of the pin shaft, and the pressing block automatically presses tightly after the pin shaft is placed, so as to adapt to pin shafts of different lengths, effectively prevent the pin shaft from shaking during machining, and ensure the accuracy of the side hole machining position.

[0022] 2. The drill fixture for machining the side holes of the pin shaft, through the setting of the installation mechanism and the docking part, the docking part is inserted into the installation groove in the installation mechanism. At this time, the locking part is in the locked state. When the second toothed block contacts the first toothed block, the rotating block rotates, and the rotating block presses the pressing strip to make the return spring contract. When the pin shaft presses against the rubber pad on the surface of the V-shaped groove, the docking part and the installation mechanism are fixed. The setting of the installation mechanism and the docking part is convenient for the installation and disassembly of the clamping mechanism, and can flexibly adjust the height of the clamping mechanism to adapt to the machining of pin shafts of different specifications, improving the versatility of the fixture.

[0023] 3. The drill fixture for machining the side holes of the pin shaft, through the setting of the clamping mechanism, the pin shaft is pushed into the clamping ring. At this time, the pin shaft presses the clip to drive the pressure cylinder and the connecting frame to move. The roller slides in the annular groove, and the two rotating rods gradually open. The clamping spring provides elastic force to make the rotating rod drive the pressure cylinder to press the clip, and the clip clamps the pin shaft. When the machining position of the side hole of the pin shaft coincides with the axis of the guiding hole, the pin shaft is initially fixed by the clamping mechanism. The clamping mechanism can quickly fix the pin shaft, and structures such as the elastic telescopic rod can adapt to pin shafts with diameter changes within a certain range, improving the compatibility of the fixture with pin shafts of different diameters.

[0024] 4. The drill fixture for machining the side holes of the pin shaft, through the setting of the locking part, the first locking block and the second locking block are respectively on the two installation blocks. The clamping block is inserted into the first clamping groove, and the locking spring pushes the clamping strip to be inserted into the second clamping groove to achieve locking. Pushing the unlocking rod can unlock. The locking part is automatically locked during installation and unlocked when adjustment is needed, improving the stability of the installation mechanism. When the height of the clamping mechanism needs to be adjusted, the separation operation can be carried out conveniently and quickly, ensuring the flexibility of the fixture in different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the appearance of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the fixing mechanism of the present invention;

[0028] Figure 4 Schematic diagram of the assembly of the installation mechanism and the docking component of the present invention;

[0029] Figure 5 Schematic diagram of the structure of the installation mechanism of the present invention;

[0030] Figure 6 Partial sectional view of the installation mechanism of the present invention;

[0031] Figure 7 Schematic diagram of the structure of the locking component of the present invention;

[0032] Figure 8 Partial sectional view of the locking component of the present invention;

[0033] Figure 9 Schematic diagram of the structure of the clamping mechanism of the present invention;

[0034] Figure 10 Schematic diagram of the structure of the clamping component of the present invention;

[0035] Figure 11 Enlarged schematic diagram of part A of the present invention.

[0036] In the figure: 1, mounting plate; 2, mounting hole; 3, fixing plate; 4, first guide rail; 5, second guide rail; 6, fixing mechanism; 61, positioning block; 62, first chute; 63, V-shaped groove; 64, rubber pad; 65, pressing block; 66, protective pad; 67, circular chute; 68, sliding rod; 69, fixing spring; 7, installation mechanism; 71, mounting block; 72, second chute; 73, installation groove; 74, first toothed block; 75, connecting plate; 76, pressing strip; 77, return spring; 78, locking component; 7801, first locking block; 7802, second locking block; 7803, unlocking groove; 7804, unlocking rod; 7805, first card slot; 7806, clamping block; 7807, receiving groove; 7808, locking spring; 7809, clamping strip; 7810, second card slot; 8, clamping mechanism; 81, clamping ring; 82, guide hole; 83, chip receiving cylinder; 84, annular groove; 85, clamping component; 851, elastic telescopic rod; 852, clamping piece; 853, pressing cylinder; 854, connecting frame; 855, rotating rod; 856, roller; 857, clamping spring; 9, docking component; 91, fixing block; 92, rotating block; 93, second toothed block. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] The first embodiment is as follows Figures 1 to 3 As shown, the present invention provides a technical solution: a drilling fixture for machining side holes of a pin shaft, including:

[0039] A mounting plate 1 and mounting holes 2 opened at the four corners of the mounting plate 1. The mounting holes 2 are used to fix the mounting plate 1 on the drilling machine. A fixing plate 3 is fixedly installed at the top of the mounting plate 1. First guide rails 4 are fixedly installed on both sides of the top of the fixing plate 3, and a second guide rail 5 is fixedly installed at the middle of the top of the fixing plate 3. The first guide rail 4 and the second guide rail 5 are perpendicular to each other;

[0040] A fixing mechanism 6 is slidably installed on the top of the first guide rail 4. The fixing mechanism 6 is used to fix the pin shaft to prevent the pin shaft from shaking during the machining of the side hole and ensure the accuracy of the position during the machining of the side hole. The first guide rail 4 provides a sliding track for the fixing mechanism 6, so that the fixing mechanism 6 can adjust its position according to the length of the pin shaft;

[0041] The fixing mechanism 6 includes a positioning block 61 and a pressing block 65. A first sliding groove 62 is opened at the middle of the bottom of the positioning block 61. The positioning block 61 is slidably installed on the top of the first guide rail 4 through the first sliding groove 62. A V-shaped groove 63 is opened at the middle of the top of the positioning block 61. The V-shaped groove 63 is used to position the pin shaft. Circular sliding grooves 67 are opened on both sides of the top of the positioning block 61. Slide rods 68 are fixedly connected to both sides of the bottom of the pressing block 65. The slide rods 68 are slidably installed inside the circular sliding grooves 67. A fixing spring 69 is fixedly connected between the bottom of the slide rod 68 and the bottom of the inner cavity of the circular sliding groove 67. The distance between the positioning block 61 and the pressing block 65 is adjusted by sliding the slide rods 68 inside the circular sliding grooves 67. The fixing spring 69 provides a downward elastic force for the pressing block 65, so that the pressing block 65 can tightly press the pin shaft;

[0042] A rubber pad 64 is fixedly installed on the surface of the V-shaped groove 63. The lower surface of the pressing block 65 is specifically an arc-shaped concave surface, and a protective pad 66 is fixedly installed at the concave surface of the pressing block 65. The rubber pad 64 and the protective pad 66 increase the friction with the pin shaft, prevent the pin shaft from sliding during the machining process, and reduce the wear of the pin shaft.

[0043] The second embodiment is based on the first embodiment. Please refer to Figures 1 to 8As shown in the figure, the installation mechanism 7 is slidably installed on the top of the second guide rail 5. The installation mechanism 7 includes installation blocks 71. The number of installation blocks 71 is two, and a locking member 78 is installed between the two installation blocks 71. The locking member 78 is arranged on both sides of the installation blocks 71. The locking member 78 is used to fix the two installation blocks 71 to ensure the stability of the installation mechanism 7. A second chute 72 is opened at the bottom of the installation block 71. The installation block 71 is slidably installed on the top of the second guide rail 5 through the second chute 72. An installation groove 73 is opened at the top of the installation block 71. A first toothed block 74 is fixedly installed on the inner wall of the installation groove 73. A pressure bar 76 is rotatably installed on the inner wall of the installation groove 73 through a rotating shaft. A return spring 77 is fixedly installed on the lower surface of the pressure bar 76. The other end of the return spring 77 is fixedly installed on a connecting plate 75. The connecting plate 75 is fixedly installed on the inner wall of the installation groove 73. The pressure bar 76 is pressed by the rotating block 92 to contract the return spring 77, assisting in the installation and fixation of the docking member 9 and the installation mechanism 7;

[0044] The locking member 78 includes a first locking block 7801 and a second locking block 7802. The first locking block 7801 and the second locking block 7802 are respectively fixedly installed on the opposite surfaces of the two installation blocks 71. A first card slot 7805 is opened on the surface of the first locking block 7801. A clamping block 7806 is fixedly installed on the surface of the second locking block 7802. The clamping block 7806 is engaged and adapted with the first card slot 7805. A second card slot 7810 is opened at the top of the clamping block 7806. A receiving groove 7807 is opened inside the first card slot 7805. A locking spring 7808 is fixedly installed inside the receiving groove 7807. The other end of the locking spring 7808 is fixedly connected to a card strip 7809. The card strip 7809 is engaged and adapted with the second card slot 7810;

[0045] An unlocking groove 7803 is opened on the surface of the first locking block 7801. The unlocking groove 7803 is arranged adjacent to the first card slot 7805. The unlocking groove 7803 is communicated with the receiving groove 7807. An unlocking rod 7804 is fixedly connected to the outer surface of the card strip 7809. The unlocking rod 7804 is slidably installed inside the unlocking groove 7803. The arrangement of the unlocking rod 7804 and the unlocking groove 7803 enables the locking member 78 to release the locked state, facilitating the adjustment of the clamping mechanism 8.

[0046] Third Embodiment. On the basis of the first and second embodiments, please refer to Figures 1 to 11 As shown in the figure, a clamping mechanism 8. A docking member 9 is installed at the bottom of the clamping mechanism 8. The clamping mechanism 8 is detachably installed on the top of the installation mechanism 7 through the docking member 9. The installation mechanism 7 cooperates with the docking member 9 to install the clamping mechanism 8. When pins of different specifications need to be processed, the installation height of the clamping mechanism 8 can be adjusted through the installation mechanism 7 and the docking member 9, so as to adapt to the fixing mechanism 6 and place the pin stably;

[0047] The clamping mechanism 8 includes a clamping ring 81 and clamping members 85. The clamping members 85 are installed at both ends of the clamping ring 81. A guiding hole 82 is provided in the middle of the top of the clamping ring 81. The guiding hole 82 provides guidance for the drilling machine to process the pin side hole, ensuring the accuracy of the processing position. A chip receiving cylinder 83 is detachably installed in the middle of the bottom of the clamping ring 81. The chip receiving cylinder 83 is used to collect the chips generated during the processing. Annular grooves 84 are provided on both sides of the inner wall of the clamping ring 81. The clamping members 85 are slidably installed inside the annular grooves 84;

[0048] The clamping member 85 includes an elastic telescopic rod 851, a clamping piece 852 and a connecting frame 854. The elastic telescopic rods 851 are fixedly connected to both sides of the clamping piece 852. The other ends of the elastic telescopic rods 851 are fixedly connected to the inner wall of the clamping ring 81. Rotating cylinders 853 are rotatably installed at both ends of the connecting frame 854 through rotating shafts. The rotating cylinders 853 are adapted to be pressed against the clamping piece 852. A rotating rod 855 is rotatably installed in the middle of the connecting frame 854 through a rotating shaft. The number of the rotating rods 855 is two, and a clamping spring 857 is fixedly connected between the two rotating rods 855;

[0049] One end of the rotating rod 855 away from the connecting frame 854 is rotatably installed with a roller 856 through a rotating shaft. The roller 856 is slidably installed inside the annular groove 84. The roller 856 and the annular groove 84 ensure the smooth rotation of the rotating rod 855;

[0050] The docking member 9 includes a fixed block 91. The fixed block 91 is fixedly installed at the bottom of the clamping ring 81. Rotating blocks 92 are rotatably installed on both sides of the fixed block 91 through rotating shafts. A second toothed block 93 is fixedly installed on one side of the rotating block 92. The second toothed block 93 meshes with the first toothed block 74 to realize the fixation and height adjustment of the docking member 9 and the installation mechanism 7;

[0051] The bottom of one side of the rotating block 92 is an inclined surface, and the inclined surface is arranged opposite to the second toothed block 93. The pressing strip 76 is adapted to be pressed against the inclined surface of the rotating block 92. When the rotating block 92 is inserted into the installation groove 73, the second toothed block 93 contacts the first toothed block 74, and the pressing strip 76 will rotate as the rotating block 92 rotates. The elastic force of the return spring 77 causes the pressing strip 76 to always maintain a certain pressure on the rotating block 92, making the meshing of the second toothed block 93 and the first toothed block 74 more stable.

[0052] During use, the staff installs the mounting plate 1 on the drilling machine through the mounting hole 2, and pushes the pin into the clamping ring 81. At this time, the pin presses the clamping piece 852 to drive the rotating cylinder 853 and the connecting frame 854 to move. The roller 856 slides in the annular groove 84, and the two rotating rods 855 gradually open. The clamping spring 857 provides elastic force to drive the rotating rod 855 to drive the rotating cylinder 853 to press the clamping piece 852, and the clamping piece 852 clamps the pin. When the processing position of the pin side hole coincides with the axis of the guiding hole 82, the pin is initially fixed by the clamping mechanism 8;

[0053] Insert the docking part 9 at the bottom of the clamping mechanism 8 into the installation groove 73 in the installation mechanism 7. At this time, the locking part 78 is in the locked state. When the second toothed block 93 contacts the first toothed block 74, the rotating block 92 rotates, and the rotating block 92 presses the pressing strip 76 to contract the return spring 77. When the pin shaft presses against the rubber pad 64 on the surface of the V-shaped groove 63, the docking part 9 and the installation mechanism 7 are fixed;

[0054] The rubber pad 64 on the surface of the V-shaped groove 63 can increase the friction force to prevent the pin shaft from sliding. The two positioning blocks 61 can slide on the top of the first guide rail 4 to adapt to pin shafts of different lengths. The slide bars 68 on both sides of the bottom of the pressing block 65 are slidably installed in the circular chute 67. The elastic force of the fixing spring 69 causes the pressing block 65 to press down. The arc-shaped concave surface and the protective pad 66 on its lower surface can better fit the pin shaft to further fix the pin shaft and prevent it from shaking during processing;

[0055] The drilling machine can process the side holes of the pin shaft through the guiding hole 82 in the middle of the top of the clamping ring 81, and the chips generated during processing fall into the chip receiving cylinder 83;

[0056] After processing, lift the pressing block 65 upward and pull out the pin shaft. When it is necessary to adjust the height of the clamping mechanism 8 to adapt to pin shafts of different diameters, first push the unlocking rod 7804 upward to make the clamping strip 7809 disengage from the second card slot 7810, separate the two installation blocks 71. At this time, the second toothed block 93 disengages from the first toothed block 74, remove the clamping mechanism 8, and then repeat the installation operation of the clamping mechanism 8 to adjust the height of the clamping mechanism 8.

[0057] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0058] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling fixture for machining side holes of a pin shaft, characterized in that, Comprising: A mounting plate (1), and mounting holes (2) opened at the four corners of the mounting plate (1). A fixing plate (3) is fixedly mounted on the top of the mounting plate (1). On both sides of the top of the fixing plate (3), first guide rails (4) are fixedly mounted. At the middle of the top of the fixing plate (3), a second guide rail (5) is fixedly mounted. The first guide rail (4) and the second guide rail (5) are perpendicularly arranged; A fixing mechanism (6), which is slidably mounted on the top of the first guide rail (4); A mounting mechanism (7), which is slidably mounted on the top of the second guide rail (5); A clamping mechanism (8). A docking member (9) is mounted at the bottom of the clamping mechanism (8). The clamping mechanism (8) is detachably mounted on the top of the mounting mechanism (7) through the docking member (9); Among them, the clamping mechanism (8) includes a clamping ring (81) and clamping members (85). The clamping members (85) are mounted at both ends of the clamping ring (81). A guiding hole (82) is opened at the middle of the top of the clamping ring (81). A chip receiving cylinder (83) is detachably mounted at the middle of the bottom of the clamping ring (81). Annular grooves (84) are opened on both sides of the inner wall of the clamping ring (81). The clamping members (85) are slidably mounted inside the annular grooves (84).

2. The drill fixture for processing side holes of a pin shaft according to claim 1, wherein: The fixing mechanism (6) includes a positioning block (61) and a pressing block (65). A first sliding groove (62) is opened at the middle of the bottom of the positioning block (61). The positioning block (61) is slidably mounted on the top of the first guide rail (4) through the first sliding groove (62). A V-shaped groove (63) is opened at the middle of the top of the positioning block (61). Circular sliding grooves (67) are opened on both sides of the top of the positioning block (61). On both sides of the bottom of the pressing block (65), sliding rods (68) are fixedly connected. The sliding rods (68) are slidably mounted inside the circular sliding grooves (67). A fixing spring (69) is fixedly connected between the bottom of the sliding rod (68) and the bottom of the inner cavity of the circular sliding groove (67).

3. A drilling fixture for machining side holes of a pin shaft according to claim 2, characterized in that: A rubber pad (64) is fixedly mounted on the surface of the V-shaped groove (63). The lower surface of the pressing block (65) is specifically an arc-shaped concave surface. A protective pad (66) is fixedly mounted at the concave surface of the pressing block (65).

4. A drilling fixture for machining side holes of a pin shaft according to claim 1, characterized in that: The installation mechanism (7) includes mounting blocks (71). The number of the mounting blocks (71) is two, and a locking member (78) is installed between the two mounting blocks (71). The locking member (78) is arranged on both sides of the mounting blocks (71). A second sliding groove (72) is formed at the bottom of the mounting block (71). The mounting block (71) is slidably mounted on the top of the second guide rail (5) through the second sliding groove (72). An installation groove (73) is formed at the top of the mounting block (71). A first toothed block (74) is fixedly installed on the inner wall of the installation groove (73). A pressure strip (76) is rotatably installed on the inner wall of the installation groove (73) through a rotating shaft. A return spring (77) is fixedly installed on the lower surface of the pressure strip (76). The other end of the return spring (77) is fixedly installed on a connecting plate (75). The connecting plate (75) is fixedly installed on the inner wall of the installation groove (73).

5. The drilling fixture for processing side holes of a pin shaft according to claim 4, wherein: The locking member (78) includes a first locking block (7801) and a second locking block (7802). The first locking block (7801) and the second locking block (7802) are respectively fixedly installed on the opposite surfaces of the two mounting blocks (71). A first card slot (7805) is formed on the surface of the first locking block (7801). A clamping block (7806) is fixedly installed on the surface of the second locking block (7802). The clamping block (7806) is engaged and adapted with the first card slot (7805). A second card slot (7810) is formed at the top of the clamping block (7806). A receiving groove (7807) is formed inside the first card slot (7805). A locking spring (7808) is fixedly installed inside the receiving groove (7807). The other end of the locking spring (7808) is fixedly connected to a card strip (7809). The card strip (7809) is engaged and adapted with the second card slot (7810).

6. A drilling fixture for machining side holes of a pin shaft according to claim 5, characterized in that: An unlocking groove (7803) is formed on the surface of the first locking block (7801). The unlocking groove (7803) is arranged adjacent to the first card slot (7805). The unlocking groove (7803) is communicated with the receiving groove (7807). An unlocking rod (7804) is fixedly connected to the outer surface of the card strip (7809). The unlocking rod (7804) is slidably installed inside the unlocking groove (7803).

7. A drill fixture for machining side holes of a pin shaft according to claim 1, characterized in that: The clamping member (85) includes an elastic telescopic rod (851), a clamping piece (852) and a connecting frame (854). The elastic telescopic rod (851) is fixedly connected to both sides of the clamping piece (852). The other end of the elastic telescopic rod (851) is fixedly connected to the inner wall of the clamping ring (81). Both ends of the connecting frame (854) are rotatably installed with pressure cylinders (853) through rotating shafts. The pressure cylinders (853) are pressed and adapted with the clamping piece (852). A rotating rod (855) is rotatably installed at the middle of the connecting frame (854). The number of the rotating rods (855) is two, and a clamping spring (857) is fixedly connected between the two rotating rods (855).

8. A drilling fixture for machining side holes of a pin shaft according to claim 7, characterized in that: One end of the rotating rod (855) away from the connecting frame (854) is rotatably installed with a roller (856) through a rotating shaft, and the roller (856) is slidably installed inside the annular groove (84).

9. A drilling fixture for machining side holes of a pin shaft according to claim 4, characterized in that: The docking member (9) includes a fixed block (91), the fixed block (91) is fixedly installed at the bottom of the clamping ring (81), two sides of the fixed block (91) are rotatably installed with rotating blocks (92) through rotating shafts, one side of the rotating block (92) is fixedly installed with a second toothed block (93), and the second toothed block (93) is engaged with the first toothed block (74).

10. The drill fixture for machining side holes of a pin shaft according to claim 9, characterized in that: The bottom of one side of the rotating block (92) is an inclined surface, and the inclined surface is arranged opposite to the second toothed block (93), and the pressing strip (76) is squeezed and adapted to the inclined surface of the rotating block (92).

Images