阅读说明：本技术 一种卡环自动夹料机构 (Automatic clamping mechanism for clamp ring ) 是由 陈其荣 苏志伟 许福气 吴忠中 曾聪 谢杨 于 2021-08-24 设计创作，主要内容包括：本发明涉及一种卡环自动夹料机构,包括冲压机构,冲压机构包括上模座和下模座,包括弹性连接装置和用于夹住卡环的夹钳,所述弹性连接装置固定连接于上模座,所述夹钳活动连接在弹性连接装置上,使得上模座在回程过程中带动弹性连接装置和夹钳同步移动以取出卡环。本发明具有便于取出卡环从而提高工作效率的优势。(The invention relates to an automatic clamping mechanism for a snap ring, which comprises a stamping mechanism, wherein the stamping mechanism comprises an upper die holder and a lower die holder, and comprises an elastic connecting device and a clamp for clamping the snap ring, the elastic connecting device is fixedly connected with the upper die holder, and the clamp is movably connected with the elastic connecting device, so that the upper die holder drives the elastic connecting device and the clamp to synchronously move in the return stroke process to take out the snap ring. The invention has the advantage of improving the working efficiency by taking out the snap ring conveniently.)

1. The utility model provides an automatic material mechanism that presss from both sides of snap ring, includes punching press mechanism, and punching press mechanism includes upper die base and die holder, its characterized in that: including elastic connection device (1) and clamp (2) that are used for cliping the snap ring, elastic connection device (1) fixed connection is in the upper die base, clamp (2) swing joint is on elastic connection device (1) for the upper die base drives elastic connection device (1) and clamp (2) synchronous movement in order to take out the snap ring in the return stroke in-process.

2. The automatic clamping mechanism of snap rings according to claim 1, characterized in that: clamp (2) include inner core (21), outer claw (22) and coupling hook (23), swing joint between inner core (21) and the outer claw (22), inner core (21) and outer claw (22) are located the interior, excircle both sides of snap ring respectively and press from both sides tightly the snap ring, coupling hook (23) fixed connection is on inner core (21), and its one end and elastic connection device (1) swing joint of keeping away from inner core (21).

3. The automatic clamping mechanism of snap ring according to claim 2, characterized in that: the cross section of the inner core (21) is in a fan shape, the arc surface of the inner core is attached to the inner circular surface of the clamping ring, the cross section of the outer claw (22) is in a U shape, the inner core (21) is positioned in the opening of the outer claw (22), and the two sides of the outer claw (22) are respectively provided with a bulge (221) which is abutted against the outer circular surface of the clamping ring; the inner core (21) is connected with the outer claw (22) through a bolt.

4. The automatic clamping mechanism of snap ring according to claim 3, characterized in that: the two bulges (221) are arc-shaped and symmetrically arranged, and the included angle between the two bulges is 108 degrees.

5. The automatic clamping mechanism of snap ring according to claim 2, characterized in that: the elastic connecting device (1) comprises a fixed seat (11), a movable outer frame (12) and a stop hook (13), wherein the fixed seat (11) is fixedly connected with the upper die holder, and the fixed seat (11) is movably connected with the movable outer frame (12); run through on fixing base (11) and offer and supply coupling hook (23) male hole of stepping down (111), set up on the inside wall of hole of stepping down (111) and supply movable hole (112) that stop hook (13) slided, stop hook (13) length direction's one end fixed connection is in the inside wall of activity frame (12), stop hook (13) length direction's the other end and coupling hook (23) cooperation are connected, offer on coupling hook (23) and supply stop hook (13) male recess (231).

6. The automatic clamping mechanism of snap rings according to claim 5, characterized in that: the outer side wall of the fixed seat (11) is provided with a guide rod (3), and the length direction of the guide rod (3) is consistent with the sliding direction of the stop hook (13); a hole for the guide rod (3) to pass through is formed in the movable outer frame (12), and a baffle (4) is fixedly arranged at one end of the guide rod (3) far away from the direction of the fixed seat (11); the guide rod (3) is sleeved with a first spring (5), and two ends of the first spring (5) in the length direction are respectively connected with the baffle (4) and the movable outer frame (12).

7. The automatic clamping mechanism of snap rings according to claim 5, characterized in that: the end part of the connecting hook (23) is provided with a first guide surface (232), and the end part of the stopping hook (13) is provided with a second guide surface (131) which is used for abutting against the first guide surface (232) in the process of moving the fixed seat (11) downwards.

8. The automatic clamping mechanism of snap rings according to claim 5, characterized in that: a push rod (6) is arranged on one side of the movable outer frame (12) far away from the baffle (4).

9. The automatic clamping mechanism of snap rings according to claim 1, characterized in that: the die further comprises an auxiliary mechanism (7), the auxiliary mechanism (7) comprises a second spring (71), a base (72) and a connecting assembly (73), the connecting assembly (73) is arranged on the upper die base, the base (72) is sleeved on the connecting assembly (73), and the connecting assembly (73) is movably connected with the base (72); the base (72) is boss-shaped, and the second spring (71) is sleeved on the base (72) and is lapped on the bottom edge of the base (72).

10. The automatic clamping mechanism of snap ring according to claim 9, characterized in that: the connecting assembly (73) comprises a sleeve (732) and a connecting rod (731), the connecting rod (731) is connected to the upper die holder, the sleeve (732) is T-shaped and is in threaded connection with the outer side wall of the connecting rod (731), and a T-shaped groove matched with the sleeve (732) is formed in the base (72).

Technical Field

The invention relates to the technical field of automobile part machining equipment, in particular to an automatic clamping mechanism for a clamp ring.

Background

The snap ring, also known as a collar, is mostly stamped and used to position the component, which serves as an axial stop. Because the volume of snap ring is generally less relatively, need put into the mould through the manual work usually during the punching press, through punching press mechanism to its stamping forming back, the snap ring is easily blocked in the die cavity of die, and the manual work is taken out and is comparatively wasted time and energy, has reduced the production efficiency of snap ring, has consequently provided an automatic material mechanism that presss from both sides of snap ring.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic clamping mechanism for a snap ring.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an automatic material mechanism that presss from both sides of snap ring, includes punching press mechanism, and punching press mechanism includes upper die base and die holder, includes elastic connection device and the clamp that is used for cliping the snap ring, elastic connection device fixed connection is in the upper die base, clamp swing joint is on elastic connection device for the upper die base drives elastic connection device and clamp synchronous motion in the return stroke in order to take out the snap ring.

Through adopting above-mentioned technical scheme, this mechanism includes clamp and elastic connection device, before the punching press, locks the work piece with calliper earlier. In the process that the upper die holder punches downwards, the elastic connecting device presses downwards along with the upper die holder and hooks the clamp at the lower extreme point; when the die returns, the upper die base drives the elastic connecting device and drives the clamp and the clamping ring to move upwards, and the clamping ring is taken away from the female die area by the upper die. And after the punching is finished, the clamp is detached and is ready for manufacturing the next workpiece. Through the structure, the clamp ring can be automatically taken out, so that the operation of workers is greatly facilitated, and the working efficiency is improved.

The invention is further configured to: the clamp comprises an inner core, an outer claw and a connecting hook, the inner core is movably connected with the outer claw, the inner core and the outer claw are respectively positioned on the inner side and the outer side of the clamping ring to clamp the clamping ring, the connecting hook is fixedly connected to the inner core, and one end, far away from the inner core, of the connecting hook is movably connected with the elastic connecting device.

Through adopting above-mentioned technical scheme, inner core and outer claw swing joint when the installation snap ring, will clip quick snap ring through inner core and outer claw, are favorable to fixing the snap ring, simultaneously, easy operation makes things convenient for staff's operation.

The invention is further configured to: the cross section of the inner core is in a fan shape, the arc surface of the inner core is attached to the inner circular surface of the clamping ring, the cross section of the outer claw is in a U shape, the inner core is positioned in the opening of the outer claw, and the two sides of the outer claw are respectively provided with a bulge which is abutted against the outer circular surface of the clamping ring; the inner core is connected with the outer claw through a bolt.

Through adopting above-mentioned technical scheme, when fixing the snap ring, through screwing up the bolt for thereby inner core and outer claw tighten up and press from both sides the snap ring tightly, protruding butt is on the excircle lateral wall of snap ring, and the cross section of inner core is fan-shaped, and its arc surface laminating is on the interior disc of snap ring, thereby has increased area of contact between inner core and the snap ring, is favorable to strengthening the fixed to the snap ring.

The invention is further configured to: the two bulges are arc-shaped and symmetrically arranged, and the included angle between the two bulges is 108 degrees.

Through adopting above-mentioned technical scheme, protruding butt on the excircle of snap ring after inner core and outer claw locking, the arch is convex to the indentation that the arch caused the snap ring surface has significantly reduced is favorable to guaranteeing the surface quality of snap ring.

The invention is further configured to: the elastic connecting device comprises a fixed seat, a movable outer frame and a stop hook, the fixed seat is fixedly connected with the upper die holder, and the fixed seat is movably connected with the movable outer frame; the fixing seat is provided with a yielding hole for inserting the connecting hook in a penetrating mode, a movable hole for sliding the stopping hook is formed in the inner side wall of the yielding hole, one end of the stopping hook in the length direction is fixedly connected to the inner side wall of the movable outer frame, the other end of the stopping hook in the length direction is connected with the connecting hook in a matching mode, and a groove for inserting the stopping hook is formed in the connecting hook.

By adopting the technical scheme, the upper die base drives the fixed base and the movable outer frame to move downwards in the downward movement process, and when the connecting hook enters the abdicating hole, the stopping hook is inserted into the groove, so that the stopping hook and the connecting hook are buckled together. When the upper die base moves upwards, the stop hook, the fixed base and the movable frame are driven to move upwards, the stop hook drives the connecting hook to move upwards, and the connecting hook drives the inner core and the outer claw to move upwards, so that the snap ring is driven to move upwards. Through the structure, the quick disassembly and assembly between the connecting hook and the stopping hook are realized, the quick replacement of the snap ring is facilitated, and the working efficiency is further improved.

The invention is further configured to: the outer side wall of the fixed seat is provided with a guide rod, and the length direction of the guide rod is consistent with the sliding direction of the stop hook; a hole for the guide rod to pass through is formed in the movable outer frame, and a baffle is fixedly arranged at one end of the guide rod away from the direction of the fixed seat; the guide rod is sleeved with a first spring, and two ends of the first spring in the length direction are respectively connected with the baffle and the movable outer frame.

By adopting the technical scheme, the movable outer frame slides along the length direction of the guide rod in the operation process, and the guide rod is arranged to facilitate guiding the sliding direction of the movable outer frame and reduce the deviation of the movable outer frame in the sliding process; on the other hand, the first spring is arranged to be beneficial to resilience of the movable outer frame, and operation of workers is reduced.

The invention is further configured to: the end part of the connecting hook is provided with a first guide surface, and the end part of the stopping hook is provided with a second guide surface which is used for abutting against the first guide surface in the process of moving the fixing seat downwards.

By adopting the technical scheme, the fixed seat and the movable outer frame are driven to move downwards in the process that the upper die base moves downwards, when the connecting hook enters the abdicating hole, the first guide surface abuts against the second guide surface, the stop hook moves towards one end far away from the direction of the connecting hook under the thrust and drives the movable outer frame to move, and the movable outer frame compresses the first spring; meanwhile, the fixing seat continues to move downwards, the end part of the stopping hook abuts against the side wall of the connecting hook until the stopping hook is inserted into the groove under the action of the elastic force of the first spring, and therefore the stopping hook and the connecting hook are buckled together, automatic buckling of the stopping hook and the connecting hook is achieved, and the automation degree is effectively improved.

The invention is further configured to: and a push rod is arranged on one side of the movable outer frame, which is far away from the direction of the baffle.

Through adopting above-mentioned technical scheme, the setting of push rod is convenient for operate the activity frame, makes things convenient for staff's operation greatly.

The invention is further configured to: the auxiliary mechanism comprises a second spring, a base and a connecting assembly, the connecting assembly is arranged on the upper die base, the base is sleeved on the connecting assembly, and the connecting assembly is movably connected with the base; the base is boss-shaped, and the second spring is sleeved on the base and is lapped on the bottom edge of the base.

By adopting the technical scheme, the auxiliary mechanism is driven to move downwards in the downward movement process of the upper die base until the base abuts against the clamping ring, the upper die base continues to move downwards and applies pressure to the second spring, so that the pressure is applied to the base, the base applies pressure to the clamping ring, further the pressure is applied to the clamping ring in the initial stamping stage, a workpiece is enabled to abut against the positioning edge of the lower die, and the processing precision is improved; after the punching is finished, auxiliary force is provided for the disassembly of the clamp.

The invention is further configured to: the connecting assembly comprises a sleeve and a connecting rod, the connecting rod is connected to the upper die base, the sleeve is T-shaped and is in threaded connection with the outer side wall of the connecting rod, and a T-shaped groove matched with the sleeve is formed in the base.

Through adopting above-mentioned technical scheme, coupling assembling includes sleeve and connecting rod, and threaded connection between connecting rod and the sleeve, the installation of being convenient for.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the mechanism comprises a clamp and an elastic connecting device, and a workpiece is locked by a clamp before stamping. In the process that the upper die holder punches downwards, the elastic connecting device presses downwards along with the upper die holder and hooks the clamp at the lower extreme point; when the die returns, the upper die base drives the elastic connecting device and drives the clamp and the clamping ring to move upwards, and the clamping ring is taken away from the female die area by the upper die. And after the punching is finished, the clamp is detached and is ready for manufacturing the next workpiece. The automatic taking-out of the clamp ring is realized through the structure, the operation of workers is greatly facilitated, and the working efficiency is improved;

2. when the die punches, the whole device descends until the device is contacted with the connecting hook. Because the movable outer frame is movable, when the connecting hook enters the movable outer frame, the movable outer frame can move together with the stop hook under the stress, and a gap is generated to ensure that the hook of the clamp enters the fixed seat and is buckled with the stop hook; the movable outer frame moves under the action of the first spring and acts with the fixed seat to clamp the clamp hook; when the mold moves upwards, the upper mold base drives the elastic connecting device, and the elastic connecting device drives the clamp to move upwards. After the punching is finished, the push rod is pressed, so that the outer frame and the stop pin can retreat together, and the automation degree of the whole device is greatly improved;

3. the auxiliary mechanism on the mechanism is used for applying pressure to the workpiece at the initial stage of stamping to ensure that the workpiece is propped against the positioning edge of the lower die, and can provide auxiliary force for disassembling the clamp after stamping is finished so as to take out the clamp conveniently.

Drawings

Fig. 1 is a schematic structural view of an automatic clamping mechanism of a snap ring in this embodiment.

Fig. 2 is a disassembled schematic view for embodying the clamp structure in the present embodiment.

Fig. 3 is a sectional view showing the structure of the elastic connecting means in this embodiment.

Fig. 4 is an enlarged view of a portion B in fig. 3.

Fig. 5 is a sectional view of the present embodiment for embodying the auxiliary structure.

In the figure, 1, an elastic connecting device; 11. a fixed seat; 111. a hole of abdication; 112. a movable hole; 12. a movable outer frame; 13. a stop hook; 131. a second guide surface; 2. clamping; 21. an inner core; 22. an outer jaw; 221. a protrusion; 23. a connecting hook; 231. a groove; 232. a first guide surface; 3. a guide bar; 4. a baffle plate; 5. a first spring; 6. a push rod; 7. an auxiliary mechanism; 71. a second spring; 72. a base; 73. a connecting assembly; 731. a connecting rod; 732. a sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the automatic clamping mechanism for the snap ring disclosed by the invention comprises a stamping mechanism, wherein the stamping mechanism comprises an upper die holder and a lower die holder, and further comprises an elastic connecting device 1 and a clamp 2 for clamping the snap ring; the clamp 2 comprises an inner core 21, an outer claw 22 and a connecting hook 23, wherein the inner core 21 is connected with the outer claw 22 through a bolt; the cross section of the inner core 21 is fan-shaped, the snap ring in this embodiment is arc-shaped, during the processing, the arc surface of the inner core 21 is attached to the inner circular surface of the snap ring, the cross section of the outer claw 22 is U-shaped, the inner core 21 is located in the opening of the outer claw 22, arc-shaped protrusions 221 are respectively integrally formed on two sides of the outer claw 22, the two protrusions 221 are symmetrically arranged, and the included angle between the two protrusions is 108 degrees. Before punching, the clamp 2 is sleeved on the upper part of the clamping ring, and the bolt is tightened, so that the inner core 21 and the outer claw 22 clamp the clamping ring.

Referring to fig. 1, 2 and 3, the elastic connecting device 1 includes a fixed seat 11, a movable outer frame 12 and a stop hook 13, the fixed seat 11 is fixed on the upper die holder by bolts, the movable outer frame 12 is sleeved outside the fixed seat 11, a yielding hole 111 for inserting the connecting hook 23 is formed in the fixed seat 11 in a penetrating manner, and a movable hole 112 for sliding the stop hook 13 is formed in the inner side wall of the yielding hole 111; one end of the stopping hook 13 in the length direction is fixed on the inner side wall of the movable outer frame 12 through a bolt, the other end of the stopping hook 13 in the length direction is connected with the connecting hook 23 in a matching way, and the connecting hook 23 is provided with a groove 231 for the stopping hook 13 to be inserted; the outer side wall of the fixed seat 11 is connected with two guide rods 3 which are parallel to each other, the guide rods 3 are welded on the fixed seat 11, and the length direction of the guide rods 3 is consistent with the sliding direction of the stop hook 13; a hole for the guide rod 3 to pass through is formed in the movable outer frame 12, one ends of the two guide rods 3 far away from the direction of the fixed seat 11 are connected with a baffle 4 together, and the baffle 4 is tightly riveted on the guide rods 3 through nuts; the fixed rod is sleeved with a first spring 5, and two ends of the first spring 5 in the length direction are respectively welded on the baffle 4 and the movable outer frame 12; the end of the connecting hook 23 is provided with a first guide surface 232, and the end of the stopping hook 13 is provided with a second guide surface 131 for abutting against the first guide surface 232 during the downward movement of the fixing base 11.

Referring to fig. 3 and 4, in the process that the upper die holder moves downward, the fixed seat 11 and the movable outer frame 12 are driven to move downward, when the connecting hook 23 enters the abdicating hole 111, the first guide surface 232 abuts against the second guide surface 131, the stop hook 13 moves to one end away from the connecting hook 23 under the thrust, and drives the movable outer frame 12 to move, and the movable outer frame 12 compresses the first spring 5; while the fixing holder 11 continues to move downward, the end of the stopping hook 13 abuts on the sidewall of the coupling hook 23 until the stopping hook 13 is inserted into the recess 231 by the elastic force of the first spring 5, so that the stopping hook 13 and the coupling hook 23 are caught. When the upper die holder moves upwards, the stopping hook 13, the fixed seat 11 and the moving frame are driven to move upwards, the stopping hook 13 drives the connecting hook 23 to move upwards, and the connecting hook 23 drives the inner core 21 and the outer claw 22 to move upwards, so that the clamping ring is driven to move upwards.

Referring to fig. 3, a push rod 6 is welded on one side of the movable outer frame 12 away from the direction of the baffle 4, after the punching is completed, the push rod 6 is pressed to push and drive the movable outer frame 12 to move towards one side close to the direction of the baffle 4, the movable outer frame 12 drives the stop hook 13 to move towards one end away from the direction of the fixed seat 11, so that the stop hook 13 is pulled out from the groove 231, and then the clamp 2 and the snap ring are taken out to prepare for making the next snap ring.

Referring to fig. 1 and 5, the material clamping mechanism further includes an auxiliary mechanism 7, the auxiliary mechanism 7 includes a second spring 71, a base 72 and a connecting assembly 73, the connecting assembly 73 includes a sleeve 732 and a connecting rod 731, the connecting rod 731 is welded on the upper die holder, the sleeve 732 is T-shaped and is screwed on the outer side wall of the connecting rod 731, the base 72 is boss-shaped, and a T-shaped groove matched with the sleeve 732 is formed in the base 72 in a penetrating manner; the second spring 71 is sleeved on the base 72 and is erected on the bottom edge of the base 72; in the process that the upper die holder moves downwards, the auxiliary mechanism 7 is driven to move downwards until the base 72 abuts against the clamping ring, the upper die holder continues to move downwards to drive the connecting rod 731 to move downwards, the upper die holder applies pressure to the second spring 71 so as to apply pressure to the base 72, the base 72 applies pressure to the clamping ring, and further the clamping ring is applied pressure in the initial stamping stage, so that a workpiece is enabled to abut against the positioning edge of the lower die, and the processing precision is improved; after the punching is completed, an auxiliary force is provided for the disassembly of the clamp 2.

The implementation principle of the embodiment is as follows: before punching, the clamp 2 is sleeved on the upper part of the clamping ring, and the bolt is tightened, so that the inner core 21 and the outer claw 22 clamp the clamping ring. In the process that the upper die holder moves downwards, the fixed seat 11 and the movable outer frame 12 are driven to move downwards, when the connecting hook 23 enters the abdicating hole 111, the first guide surface 232 abuts against the second guide surface 131, the stop hook 13 moves towards one end far away from the connecting hook 23 under the thrust, the movable outer frame 12 is driven to move, and the movable outer frame 12 compresses the first spring 5; while the fixing holder 11 continues to move downward, the end of the stopping hook 13 abuts on the sidewall of the coupling hook 23 until the stopping hook 13 is inserted into the recess 231 by the elastic force of the first spring 5, so that the stopping hook 13 and the coupling hook 23 are caught. When the upper die holder moves upwards, the stop hook 13, the fixed seat 11 and the movable frame are driven to move upwards, the stop hook 13 drives the connecting hook 23 to move upwards, and the connecting hook 23 drives the inner core 21 and the outer claw 22 to move upwards, so that the clamping ring is driven to move upwards; after the punching is finished, the push rod 6 is pressed, the movable outer frame 12 is pushed and driven to move towards one side close to the direction of the baffle 4, the movable outer frame 12 drives the stop hook 13 to move towards one end far away from the direction of the fixed seat 11, so that the stop hook 13 is pulled out from the groove 231, and the clamp 2 and the snap ring are taken out to prepare for manufacturing the next snap ring.

Meanwhile, in the process of moving the upper die base downwards, the auxiliary mechanism 7 is driven to move downwards until the base 72 abuts against the snap ring, the upper die base continues to move downwards to drive the connecting rod 731 to move downwards, the upper die base applies pressure to the second spring 71, so that the base 72 applies pressure to the snap ring, and then the pressure is applied to the snap ring at the initial stamping stage, so that the snap ring is enabled to abut against the positioning edge of the lower die, and the processing precision is improved.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.