Automatic drilling equipment for piston pin

Abstract

The utility model discloses piston pin automatic drilling equipment which comprises a machining table, a positioning mechanism used for positioning a piston pin to be machined is arranged on the machining table, drilling mechanisms are symmetrically arranged at the positions, located on the two sides of the positioning mechanism, of the machining table, and the positioning mechanism comprises a base installed on the machining table. A lifting table is arranged on the base, a pushing piece and an elastic clamping piece are arranged at the lifting end of the lifting table, a clamping groove is formed in the lifting end of the lifting table, the elastic clamping piece comprises a clamping piece which is rotationally connected to the lifting end and located at an opening of the clamping groove, and an elastic piece is arranged between the clamping piece and the lifting end. A telescopic chuck is arranged on the base and located below the elastic clamping piece, and the telescopic end of the pushing piece pushes the piston pin to be machined in the elastic clamping piece into the chuck, so that the piston pin to be machined is clamped in the chuck. According to the full-automatic piston pin drilling machine, full-automatic feeding, positioning, drilling and discharging of piston pins are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to piston pin processing technical field, especially a piston pin automatic drilling equipment. BACKGROUND

[0002] Piston pin usually needs to set up through hole on the side when processing, because piston pin is cylindrical and small, piston pin needs to face the axial pressure and radial cutting force of drill bit when drilling, so needs to be clamped firmly when drilling. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of piston pin automatic drilling equipment to solve the technical deficiency of above-mentioned.

[0004] The utility model discloses a kind of piston pin automatic drilling equipment, including processing table, the positioning mechanism for positioning the piston pin to be processed is equipped on the processing table, the processing table is symmetrically provided with drilling mechanism in the positioning mechanism both sides, the positioning mechanism includes the base mounted on the processing table, a lifting platform is equipped on the base, the lifting end of the lifting platform is equipped with pusher and elastic clamping piece, the pusher has telescopic end, the lifting end of the lifting platform is equipped with the clamping groove that supplies piston pin horizontal intercalation, the elastic clamping piece includes the clamping piece that is rotatably connected to lifting end and is located at the opening of clamping groove, elastic piece is equipped between the clamping piece and lifting end, so that the elastic clamping between the clamping piece and the clamping groove of lifting end is formed to clamp the piston pin to be processed, the base is equipped with retractable chuck below the elastic clamping piece, when the elastic clamping piece is lowered to between chuck and pusher, telescopic end of pusher pushes the piston pin to be processed in the elastic clamping piece to chuck, so that the piston pin to be processed is clamped in chuck.

[0005] As preferred, the drilling mechanism includes a fixed seat on the processing table, a first motor mounted on the fixed seat, a drilling spindle head connected to the first motor, and a drilling tool mounted on the drilling spindle head.

[0006] Further optimization, the fixed seat bottom is equipped with first sliding block, the processing table is equipped with connecting seat, the connecting seat is equipped with first sliding rail that is slidably connected with first sliding block, the connecting seat is equipped with screw pair and second motor along the extension direction of first sliding rail, the moving block of screw pair is connected with fixed seat, the screw of screw pair is connected with second motor through gear transmission, so that each drilling tool can independently translate close to and away from chuck under the driving of corresponding fixed seat.

[0007] As preferred, the base is provided with a receiving hole near the lifting platform, the receiving hole is connected with the external vibrating disc through a channel, so that the piston pin on the vibrating disc can be sequentially discharged into the receiving hole, the receiving hole is horizontally arranged, and the lifting platform is provided with a clamping groove.

[0008] Further optimization, the clamping groove comprises a temporary storage section and a clamping section which are parallel and communicated, the temporary storage section and the clamping section are both open at the front and rear ends, the inner diameter of the temporary storage section is larger than that of the clamping section, the front end of the temporary storage section is connected with the receiving hole, and the bottom of the clamping section is also open, the clamping piece covers the open end of the bottom, and the piston pin in the receiving hole enters the temporary storage section in a horizontal direction and then falls into the clamping section, so that the inner wall of the clamping section, the clamping piece and the telescopic end of the pushing piece are used for positioning the piston pin.

[0009] Further optimization, the surface of the clamping piece towards the open end of the bottom of the clamping section is an inner concave arc surface which is matched with the outer wall of the piston pin.

[0010] As preferred, the pushing piece is a first air cylinder, and the telescopic end of the first air cylinder is towards the rear end of the clamping groove.

[0011] Further optimization, the pushing piece is connected with the mounting block, the mounting block is provided with a waist-shaped hole, the lifting end is provided with a threaded hole, and the mounting block is screwed with the threaded hole through the waist-shaped hole by means of the fastener, so that the mounting block can be adjusted in position up and down relative to the lifting end along the waist-shaped hole.

[0012] Further optimization, the lifting platform is detachably connected with a mounting seat as the lifting end, the mounting seat is provided with the clamping groove at the bottom, and the mounting block is connected with the mounting seat.

[0013] As preferred, the chuck comprises a second air cylinder, a shaft sleeve and an elastic chuck, the second air cylinder and the shaft sleeve are fixed to the base, the elastic chuck is axially and slidingly connected in the shaft sleeve, and the telescopic end of the second air cylinder is connected with the elastic chuck and drives the elastic chuck to slide.

[0014] The technical effects of the utility model are: 1. The utility model discloses a positioning mechanism and a drilling mechanism located at both sides of the positioning mechanism, the positioning mechanism positions a piston pin to be machined, the drilling mechanism symmetrically drills from the radial two ends of the piston pin to be machined, so that the piston pin can be radially drilled under stress at the same time, which is different from drilling a radial through hole from one side of the piston pin, so that the deformation of the piston pin can be avoided; 2. The positioning mechanism is provided with a lifting end, the lifting end is provided with a clamping groove, the clamping groove is provided with a clamping piece with elasticity, so that the piston pin to be machined falling from the vibration disc is clamped in the clamping groove after sequentially passing through a material channel and a material receiving opening, and since the clamping is elastic, the surface damage of the piston pin can be reduced, and the piston pin can be applicable to different models, then the piston pin to be machined is pushed into a chuck from one end of the piston pin to be machined by a pushing piece to fix the piston pin to be machined, finally, a drill bit drills from both sides, and the piston pin is released by the chuck after drilling is completed, so that full-automatic feeding, positioning, drilling and discharging are realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 It is another view of the overall structure of the utility model;

[0017] Figure 3 It is the overall bottom structure diagram of the utility model;

[0018] Figure 4 It is Figure 3 The enlarged view of A in the figure;

[0019] Figure 5 It is the structure diagram of the positioning mechanism in the utility model;

[0020] Figure 6 It is the structure diagram of the elastic clamping piece in the utility model.

[0021] In the figure: 1, processing table; 2, positioning mechanism; 21, base; 22, lifting table; 23, clamping groove; 231, temporary storage section; 232, buckle section; 24, material receiving hole; 25, pushing piece; 26, elastic clamping piece; 261, clamping piece; 262, elastic piece; 27, mounting block; 271, waist-shaped hole; 28, connecting seat; 29, chuck; 291, second air cylinder; 292, shaft sleeve; 293, elastic chuck; 3, drilling mechanism; 31, fixed seat; 32, first motor; 33, drilling spindle head; 34, drilling tool; 35, first sliding block; 36, mounting seat; 37, first sliding rail; 38, lead screw pair; 39, second motor. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the person skilled in the art belong to the scope of protection of the present utility model.

[0023] The utility model discloses a processing table 1, be equipped with positioning mechanism 2 and drilling mechanism 3 on processing table 1, positioning mechanism 2 is used for positioning and clamping the piston pin of processing, drilling mechanism 3 has two, symmetrically sets up on the both sides of positioning mechanism 2, carries out radial drilling to the piston pin of processing on positioning mechanism 2 simultaneously.

[0024] Positioning mechanism 2 includes the base 21 fixed on processing table 1, is equipped with a lifting platform 22 on base 21, and lifting platform 22 has lifting end, in the embodiment, lifting platform 22 includes the seat body fixed on processing table 1, is equipped with a triangular structure's fixing frame on seat body, and fixing frame is equipped with second sliding rail along the height direction, and second sliding rail is slidably connected with second sliding block, and second sliding block is fixed with a lifting block on, and fixing frame is also equipped with driving part, and the driving end of driving part is connected to lifting block, and lifting block moves up and down along second sliding rail under the driving of driving part, and the bottom of lifting block is equipped with connecting seat 28 as lifting end, realizes the lifting action of connecting seat 28 as lifting end, and the bottom of connecting seat 28 is equipped with elastic clamping piece 26, in the embodiment, the bottom end of connecting seat 28, that is, lifting end, is provided with clamping groove 23, and the front and rear ends of clamping groove 23 are open, and the bottom is also open, and the bottom opening of clamping groove 23 is equipped with elastic clamping piece, and the elastic clamping piece includes clamping piece 261, and clamping piece 261 is rotatably connected to lifting end through a rotating shaft, and clamping piece 261 and lifting end are also equipped with elastic element 262 such as torsion spring, so that clamping piece 261 is elastically covered and installed on the bottom opening of clamping groove 23, and the piston pin of processing can be horizontally inserted into clamping groove 23, and then the bottom is elastically supported by clamping piece 261, so that elastic clamping is formed between clamping piece 261 and the clamping groove 23 of lifting end to clamp the piston pin of processing.

[0025] Connecting seat 28 is detachably installed on lifting block through fastener, and clamping groove 23 is arranged at the bottom of connecting seat 28, different models of clamping groove 23 are replaced by replacing connecting seat 28, so as to be suitable for different models of piston pin.

[0026] The pushing member 25 is a first cylinder, the telescopic end of the first cylinder is towards the rear end of the clamping groove 23, the first cylinder is connected to the connecting seat 28 through a mounting block 27, that is, the first cylinder is fixedly installed on the mounting block 27, a waist-shaped hole 271 is further formed in the mounting block 27, of course, it can also be an oval hole, the long semi-axis of the waist-shaped hole 271 or the oval hole is vertically arranged, the connecting seat 28 is provided with a threaded hole, so that the mounting block 27 is screwed to the connecting seat 28 through the fastener passing through the waist-shaped hole 271, so that the mounting block 27 can be adjusted in the up-down position relative to the connecting seat 28, realizing the fine adjustment of the mounting block 27 in the height position, so that the telescopic end of the pushing member 25 can be aligned with the rear end of the clamping groove 23, that is, aligned with the to-be-processed piston pin in the clamping groove 23, facilitating the to-be-processed piston pin to be pushed out horizontally from the clamping groove 23.

[0027] The base 21 is provided with a telescopic chuck 29 below the elastic clamping member 26, the chuck 29 includes a second cylinder 291, a shaft sleeve 292 and an elastic chuck 29, the telescopic end of the second cylinder 291, the shaft sleeve 292 and the elastic chuck 29 are coaxially arranged, the second cylinder 291 and the shaft sleeve 292 are fixedly installed on the base 21, the elastic chuck 29 is axially slidably connected in the shaft sleeve 292, the telescopic end of the second cylinder 291 is connected to the elastic chuck 29 and drives the elastic chuck 29 to slide, the elastic chuck 29 is of a conventional structure, which is opened or clamped by axially sliding in the shaft sleeve 292, so that the to-be-processed piston pin can be inserted into the elastic chuck 29 to form positioning.

[0028] When the elastic clamping member 26 is lowered between the chuck 29 and the pushing member 25, the telescopic end of the pushing member 25 pushes the to-be-processed piston pin in the elastic clamping member 26 into the elastic chuck 29, so that the to-be-processed piston pin is clamped in the elastic chuck 29.

[0029] The drilling mechanism 3 includes a fixed seat 31, a first motor 32, a drilling spindle head 33 and a drilling tool 34, the fixed seat 31 is fixed to the machining table 1, the first motor 32 is installed on the fixed seat 31, the drilling spindle head 33 is connected to the output end of the first motor 32, and the drilling tool 34 is installed on the drilling spindle head 33. The drilling mechanism 3 is respectively located on both sides of the positioning mechanism 2, after the to-be-processed piston pin is positioned by the elastic chuck 29, two drilling tools 34 drill holes in the circumferential wall of the to-be-processed piston pin from the radial two ends, forming a piston pin with two symmetrical radial holes.

[0030] Further, the bottom of the fixing seat 31 is provided with a first sliding block 35, the processing table 1 is provided with a mounting seat 36, the mounting seat 36 is provided with a first sliding rail 37 in sliding cooperation with the first sliding block 35, the mounting seat 36 is provided with a screw pair 38 and a second motor 39 along the extension direction of the first sliding rail 37, the moving block of the screw pair 38 is connected with the fixing seat 31, the screw of the screw pair 38 is connected with the second motor 39 through gear transmission, and the cooperation and guidance of the first sliding rail 37 and the first sliding block 35 and the driving action of the screw pair 38 enable each drilling tool 34 to be individually translated towards and away from the chuck 29 under the driving of the corresponding fixing seat 31.

[0031] Further, the base 21 is provided with a receiving hole 24 close to the lifting table 22, the receiving hole 24 is connected with the external vibration disc through a material channel, so that the to-be-processed piston pin on the vibration disc can be sequentially discharged into the receiving hole 24 in a horizontal direction, the receiving hole 24 is horizontally arranged, the lifting table 22 is aligned with the receiving hole 24 through the opening of the clamping groove 23, and then the to-be-processed piston pin is pushed into the clamping groove 23 from the receiving hole 24 before and after being sequentially discharged.

[0032] Further, the clamping groove 23 includes a temporary storage section 231 and a clamping section 232 which are parallel and communicated, in this embodiment, the temporary storage section 231 and the clamping section 232 are both square holes, the front and rear ends of the temporary storage section 231 and the clamping section 232 are both open ends, and the clamping groove 23 moves up and down with the lifting table 22, when the clamping groove 23 is lifted to the front end of the temporary storage section 231, the front end of the clamping section 232 is aligned with the front end of the receiving hole 24, the to-be-processed piston pin is pushed into the temporary storage section 231 from the receiving hole 24, and since the inner diameter of the temporary storage section 231 is larger than the inner diameter of the clamping section 232, the to-be-processed piston pin directly falls into the clamping section 232 from the temporary storage section 231, the bottom of the clamping section 232 is also an open end, the clamping piece 261 covers the second open end, so that the inner wall of the clamping section 232, the clamping piece 261 and the telescopic end of the pushing piece 25 position the to-be-processed piston pin, the temporary storage section 231 is used for temporarily storing or stacking the to-be-processed piston pin discharged from the receiving hole 24, the to-be-processed piston pins in the temporary storage section 231 and the clamping section 232 are in a stacked state, and the to-be-processed piston pin in the temporary storage section 231 directly falls into the clamping section 232 after being pushed away.

[0033] It should be noted that the to-be-processed piston pins in the material channel are sequentially arranged and discharged, the clamping groove 23 is horizontally arranged, the to-be-processed piston pin in the receiving hole 24 is directly pushed into the temporary storage section 231 of the clamping groove 23 after being pushed by the to-be-processed piston pin behind, and then the to-be-processed piston pin falls into the clamping section 232 from the temporary storage section 231. Under the elastic support of the elastic clamping piece 261 from bottom to top, the to-be-processed piston pins in the temporary storage section 231 and the clamping section 232 are in a closely stacked state.

[0034] Further, the surface of the clamping piece 261 towards the second open end is an inner concave arc surface which is adapted to the outer wall of the piston pin to be machined, thereby positioning the piston pin to be machined and increasing the contact area with the piston pin to be machined, so as to prevent the piston pin to be machined from deforming.

[0035] The overall working process is that the piston pin to be machined enters the receiving hole 24 of the lifting platform 22 after passing through the vibration disc and the material channel in sequence, and then enters the temporary storage section 231 from the front end of the temporary storage section 231 of the clamping groove 23 horizontally, and then falls into the buckling section 232, and the elastic clamping member 26 at the bottom elastically clamps the piston pin to be machined, so that the piston pin to be machined in the clamping groove 23 is stacked vertically, and the front end of the clamping groove 23 is aligned with the chuck 29 by the lifting action of the lifting platform 22, and the telescopic end of the pusher 25 is telescoped to push the piston pin to be machined in the buckling section 232 into the chuck 29, the chuck 29 clamps the piston pin to be machined, the drill cutter on both sides approaches the piston pin to be machined and performs drilling, at this time, the chuck 29 is loosened by moving the shaft sleeve 292 of the chuck 29 forward and backward, and the machined piston pin falls naturally, and after the piston pin to be machined in the buckling section 232 is inserted into the chuck 29, the piston pin to be machined in the temporary storage section 231 above falls directly into the buckling section 232, thereby forming continuous machining.

[0036] The utility model is not limited to the above-mentioned best implementation, and anyone can draw other various forms of products under the enlightenment of the utility model, but no matter make any change in shape or structure, if the technical scheme is same or similar to the present application, falls in the protection scope of the utility model.

Claims

1. Piston pin automatic drilling apparatus, characterized in that, The application relates to a machining table (1) provided with a positioning mechanism (2) for positioning a piston pin to be machined, and drilling mechanisms (3) symmetrically arranged on both sides of the positioning mechanism (2).

2. The piston pin auto-drilling apparatus of claim 1, wherein, The drilling mechanism (3) comprises a fixed base (31) on the machining table (1), a first motor (32) mounted on the fixed base (31), a drilling spindle head (33) connected to the first motor (32), and a drilling tool (34) mounted on the drilling spindle head (33).

3. The piston pin auto-drilling apparatus of claim 2, wherein, The fixed base (31) is provided with a first sliding block (35) at the bottom, and the machining table (1) is provided with a connecting base (28) provided with a first sliding rail (37) in sliding fit with the first sliding block (35), and the connecting base (28) is provided with a screw pair (38) and a second motor (39) along the extension direction of the first sliding rail (37), the moving block of the screw pair (38) is connected to the fixed base (31), and the screw of the screw pair (38) is connected to the second motor (39) through gear transmission, so that each drilling tool (34) can independently translate towards and away from the chuck (29) under the driving of the corresponding fixed base (31).

4. The piston pin auto-drilling apparatus of claim 1, wherein, The base (21) is provided with a material receiving hole (24) near the lifting table (22), the material receiving hole (24) is connected to an external vibration disc through a material channel, so that the piston pin to be machined on the vibration disc can be sequentially discharged into the material receiving hole (24), the material receiving hole (24) is horizontally arranged, and the lifting table (22) is provided with a clamping groove (23) at the lifting end, the lifting table (22) is provided with a pushing piece (25) and an elastic clamping piece (26) at the lifting end, the lifting end of the lifting table (22) is provided with a clamping groove (23) for horizontally inserting the piston pin, the elastic clamping piece (26) comprises a clamping piece (261) rotatably connected to the lifting end and located at the opening of the clamping groove (23), an elastic piece (262) is arranged between the clamping piece (261) and the lifting end, so that the clamping piece (261) and the clamping groove (23) of the lifting end are elastically clamped to clamp the piston pin to be machined, the base (21) is provided with a telescopic chuck (29) below the elastic clamping piece (26), when the elastic clamping piece (26) is lowered to be between the chuck (29) and the pushing piece (25), the telescopic end of the pushing piece (25) pushes the piston pin to be machined in the elastic clamping piece (26) into the chuck (29), so that the piston pin to be machined is clamped in the chuck (29).

5. The piston pin auto-drilling apparatus of claim 4, wherein, The card slot (23) comprises a temporary storage section (231) and a clamping section (232) which are parallel and communicated, the temporary storage section (231) and the clamping section (232) are both open at the front and back ends, the inner diameter of the temporary storage section (231) is larger than that of the clamping section (232), the front end of the temporary storage section (231) is connected with the material receiving hole (24), the bottom of the clamping section (232) is also open, the clamping piece (261) covers the open bottom, and the piston pin to be processed in the material receiving hole (24) falls into the clamping section (232) after entering the temporary storage section (231) horizontally, so that the inner wall of the clamping section (232), the clamping piece (261) and the telescopic end of the pusher (25) position the piston pin to be processed.

6. The piston pin auto-drilling apparatus of claim 5, wherein, The surface of the clamping piece (261) facing the open bottom of the clamping section (232) is an inner concave arc surface which is matched with the outer wall of the piston pin to be processed.

7. The piston pin auto-drilling apparatus of claim 1, wherein, The pusher (25) is a first air cylinder, and the telescopic end of the first air cylinder faces the rear end of the card slot (23).

8. The piston pin auto-drilling apparatus of claim 7, wherein, A mounting block (27) is arranged between the pusher (25) and the lifting end, the pusher (25) is connected to the mounting block (27), a waist-shaped hole (271) is arranged on the mounting block (27), a threaded hole is arranged on the lifting end, and the mounting block (27) is screwed with the threaded hole through the waist-shaped hole (271) by a fastener, so that the mounting block (27) can be adjusted in position up and down relative to the lifting end along the waist-shaped hole (271).

9. The piston pin auto-drilling apparatus of claim 8, wherein, The lifting platform (22) is detachably connected with a mounting seat (36) as the lifting end, a card slot (23) is arranged at the bottom of the mounting seat (36), and the mounting block (27) is connected to the mounting seat (36).

10. The piston pin auto-drilling apparatus of claim 1, wherein, The chuck (29) comprises a second air cylinder (291), a shaft sleeve (292) and an elastic chuck (29), the second air cylinder (291) and the shaft sleeve (292) are fixed to the base (21), the elastic chuck (29) is axially and slidingly connected in the shaft sleeve (292), and the telescopic end of the second air cylinder (291) is connected with the elastic chuck (29) and drives the elastic chuck (29) to slide.

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