Cold heading forming device for thin-wall hollow positioning pin

Abstract

The utility model relates to the technical field of cold heading, and discloses a cold heading forming device of a thin-wall hollow positioning pin, which comprises a material collecting disc, the top of the material collecting disc is fixedly connected with a base, the two sides of the base are fixedly connected with driving devices, the outer sides of the driving devices are in threaded connection with a movable frame, and the movable frame is connected with the base. By arranging the driving device, the forming device, the movable frame and the fixing device, a machined positioning pin can be conveniently taken down, and it is guaranteed that the situation that a workpiece is attached to the inner wall or the outer side of the forming device and is difficult to take down is avoided; by arranging the material collecting disc, collection of machined workpieces is facilitated, the workpieces cannot be damaged due to impact, the two sides of the top of the disc body are arranged in an arc mode, the workpieces can move along the arc faces under the action of gravity, the workpieces can move to an opening of the material collecting disc, and collection of the workpieces is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cold forging, and more particularly to a cold forging forming device for a thin-walled hollow positioning pin. Background Art

[0002] Cold heading technology is a type of cold forming, which is a processing method that punches, bends, draws, etc. materials without heating. It is usually used to make the heads of screws, bolts, rivets, etc., which can reduce or replace cutting processes.

[0003] The shortcomings of the existing technology: During the cold heading process of thin-walled hollow locating pins, due to the extrusion of the forming device, the locating pins are easily stuck to the outside of the forming device after forming, making it difficult to remove the locating pins, which is not conducive to work efficiency, and the locating pins cannot be well collected after removal. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cold heading forming device for thin-walled hollow positioning pins to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a cold heading forming device for thin-walled hollow locating pins, comprising a collecting plate, the top of the collecting plate is fixedly connected to a base, both sides of the base are fixedly connected to a driving device, the outer side of the driving device is threadedly connected to a movable frame, the interior of the movable frame is fixedly connected to a forming device, the top of the base is fixedly connected to a fixing device, the forming device comprises a forming hydraulic cylinder, the interior of the forming hydraulic cylinder is movably connected to a forming hydraulic column, and the right side of the forming hydraulic cylinder is fixedly connected to a chamfering sleeve.

[0006] Preferably, the collecting tray includes a tray body, a rubber pad is fixedly connected to the top of the tray body, and both sides of the top of the tray body are arranged in arc shape.

[0007] Preferably, the base includes a seat body, the inner side of the seat body is fixedly connected to a guide rod, the interior of the seat body is provided with a discharge chute, and the top of the seat body is provided with a slide groove.

[0008] Preferably, the fixing device includes a fixed block, the interior of the fixed block is fixedly connected to a fixed hydraulic cylinder, the interior of the fixed hydraulic cylinder is movably connected to a fixed hydraulic column, one end of the fixed hydraulic column is fixedly connected to a movable arm, the inner side of the movable arm is fixedly connected to a reinforcing block, one end of the movable arm is fixedly connected to a fixed sleeve, and a workpiece is placed between the fixed sleeves.

[0009] Preferably, the mobile frame includes a frame body, a fixing groove is provided inside the frame body, a bottom plate is fixedly connected to the bottom of the frame body, a screw groove is provided in the middle of the bottom plate, and rod grooves are provided on both sides of the bottom plate.

[0010] Preferably, the driving device includes a motor, an output end of the motor is fixedly connected to a stud, and the outer side of the stud is provided with a thread.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. The utility model is provided with a driving device, a forming device, a movable frame and a fixing device, which is convenient for removing the processed positioning pins. When in use, the workpiece is placed between the fixed sleeves, and then the fixed hydraulic column is controlled to be extended and retracted inside the fixed hydraulic cylinder, so that the two fixed sleeves are put together, and then the motor is started to rotate the stud, and the thread is adapted to the screw groove. The movable frame can be moved back and forth by rotating the stud in different directions, and the two movable frames are controlled to move toward the middle at the same time, thereby driving the forming device to move, and the chamfering sleeves are attached to the two ends of the fixed sleeve by moving, and then the forming hydraulic column is controlled to be extended and retracted inside the forming hydraulic cylinder, thereby squeezing the workpiece, and squeezing the workpiece. To form the workpiece, in order to ensure the smooth flow inside the workpiece, the forming hydraulic column on one side can be controlled to extrude first, and then the forming hydraulic column on the other side can be controlled to extrude after retracting, and then retracted. Repeat this process to obtain the completed workpiece. Start the driving device to move the movable frame to both sides, so that the chamfering sleeve that fits with the fixed sleeve is separated, and the distance moved by the chamfering sleeve is small, ensuring that the workpiece will not contact it when moving downward. Then, the forming hydraulic columns on the left and right sides are both inside the workpiece, and the forming hydraulic columns on the left and right sides are pressed together. Then, the fixing device is controlled to make the fixed sleeve leave the outside of the workpiece, so that the workpiece will not stick to its inner wall. Then, the forming hydraulic column is retracted into the forming hydraulic cylinder, and the workpiece falls under the action of gravity.

[0013] 2. The utility model is provided with a collecting tray, which is conducive to collecting the completed workpieces. When the workpiece falls after processing, it will fall onto the rubber pad through the discharge chute. The rubber pad is relatively soft and will not damage the workpiece due to impact. Both sides of the top of the tray are set with arcs. The workpiece will move along the arc surface under the action of gravity, so that the workpiece can be moved to the opening of the collecting tray, which is convenient for its collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure of the collecting tray of the present utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of the base and drive device of the utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the fixing device of the present invention.

[0018] Figure 5 This is a schematic diagram of the overall structure of the mobile rack of the present utility model.

[0019] Figure 6 It is a schematic diagram of the cross-sectional structure of the forming device of the present invention.

[0020] The accompanying drawings are marked as follows: 1. Collecting tray; 101. Tray body; 102. Rubber pad; 2. Base; 201. Base body; 202. Guide rod; 203. Discharge chute; 204. Slide; 3. Fixing device; 301. Fixing block; 302. Fixed hydraulic cylinder; 303. Fixed hydraulic column; 304. Moving arm; 305. Fixing sleeve; 306. Workpiece; 307. Reinforcement block; 4. Moving frame; 401. Frame body; 402. Fixing groove; 403. Bottom plate; 404. Screw groove; 405. Rod groove; 5. Forming device; 501. Forming hydraulic cylinder; 502. Forming hydraulic column; 503. Chamfering sleeve; 6. Driving device; 601. Motor; 602. Stud; 603. Thread. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely examples. The cold heading forming device of the thin-walled hollow locating pin involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] The utility model provides a cold heading forming device for thin-walled hollow positioning pins, such as Figures 1 to 6 As shown, it includes a collecting tray 1, the top of the collecting tray 1 is fixedly connected to the base 2, both sides of the base 2 are fixedly connected to the driving device 6, the outer side of the driving device 6 is threadedly connected to the moving frame 4, the inside of the moving frame 4 is fixedly connected to the forming device 5, the top of the base 2 is fixedly connected to the fixing device 3, the forming device 5 includes a forming hydraulic cylinder 501, the inside of the forming hydraulic cylinder 501 is movably connected to the forming hydraulic column 502, the right side of the forming hydraulic cylinder 501 is fixedly connected to the chamfering sleeve 503, the forming hydraulic column 502 is controlled so that it can be extended and retracted inside the forming hydraulic cylinder 501, and the workpiece 306 can be squeezed by the extension and retraction.

[0023] Furthermore, the collecting tray 1 includes a tray body 101, and a rubber pad 102 is fixedly connected to the top of the tray body 101. Both sides of the top of the tray body 101 are set in arcs. When the workpiece 306 falls, the rubber pad 102 is relatively soft and will not be damaged by impact. Both sides of the top of the tray body 101 are set in arcs. The workpiece 306 will move along the arc surface under the action of gravity, so that the workpiece 306 can move to the opening of the collecting tray 1, which is convenient for collecting it. The top of the rubber pad 102 is set in an arc, which ensures that the workpiece 306 can move smoothly along the arc surface of the tray body 101 when it falls on it.

[0024] Furthermore, the base 2 includes a base body 201, the inner side of which is fixedly connected to a guide rod 202, the interior of the base body 201 is provided with a discharge trough 203, and the top of the base body 201 is provided with a slide groove 204. The guide rod 202 is used to guide the movement of the movable frame 4, the discharge trough 203 is used for the passage of the processed workpiece 306, and the slide groove 204 is used to make the movement of the movable arm 304 more stable.

[0025] Furthermore, the fixing device 3 includes a fixed block 301, the interior of the fixed block 301 is fixedly connected to a fixed hydraulic cylinder 302, the interior of the fixed hydraulic cylinder 302 is movably connected to a fixed hydraulic column 303, one end of the fixed hydraulic column 303 is fixedly connected to a movable arm 304, the inner side of the movable arm 304 is fixedly connected to a reinforcing block 307, one end of the movable arm 304 is fixedly connected to a fixed sleeve 305, a workpiece 306 is placed between the fixed sleeves 305, the fixed block 301 is fixed to the top of the base 2, and the fixed hydraulic column 303 is controlled so that it can be extended and retracted inside the fixed hydraulic cylinder 302, so that the movable arm 304 can drive the fixed sleeve 305 together, so as to facilitate the fixation of the workpiece 306.

[0026] Furthermore, the movable frame 4 includes a frame body 401, a fixing groove 402 is provided inside the frame body 401, the bottom of the frame body 401 is fixedly connected to a base plate 403, a screw groove 404 is provided in the middle of the base plate 403, and rod grooves 405 are provided on both sides of the base plate 403. The rod groove 405 is used for it to move on the outside of the guide rod 202, and the screw groove 404 is adapted to the thread 603.

[0027] Furthermore, the driving device 6 includes a motor 601, the output end of the motor 601 is fixedly connected to a stud 602, the outer side of the stud 602 is provided with a thread 603, the motor 601 is fixed on both sides of the base 2, and the stud 602 can be rotated by starting the motor 601, and the rotation in different directions enables the movable frame 4 to move back and forth.

[0028] The working principle of the present invention is as follows: when in use, the workpiece 306 is placed between the fixed sleeves 305, and then the fixed hydraulic column 303 is controlled to make it expand and contract inside the fixed hydraulic cylinder 302, thereby making the two fixed sleeves 305 come together, and then the motor 601 is started to make the stud 602 rotate, and the rotation in different directions makes the movable frame 4 move back and forth, and the two movable frames 4 are controlled to move toward the middle at the same time, thereby driving the forming device 5 to move, and the chamfering sleeve 503 is attached to the two ends of the fixed sleeve 305 by movement, and then the forming hydraulic column 502 is controlled to make it expand and contract inside the forming hydraulic cylinder 501, thereby squeezing the workpiece 306, and forming the workpiece 306 by squeezing. In order to ensure the smooth flow inside the workpiece 306, the forming hydraulic column 502 on one side can be controlled to squeeze first, and then the forming hydraulic column 502 on the other side can be controlled to squeeze after retracting, and then retracted again. Repeatedly, the processed workpiece 306 can be obtained, and the driving device 6 is started. After the workpiece 306 is removed from the workpiece 306, the workpiece 306 is moved to the left and right sides of the workpiece 306, so that the workpiece 306 will not be attached to the inner wall thereof, thereby facilitating the removal of the workpiece 306. After that, the forming hydraulic column 502 is retracted into the forming hydraulic cylinder 501, and the workpiece 306 falls onto the rubber pad 102 through the discharge chute 203 under the action of gravity. Since the rubber pad 102 is relatively soft, the workpiece 306 will not be damaged by the impact, and both sides of the top of the disk body 101 are arc-shaped. The workpiece 306 will move along the arc surface under the action of gravity, so that the workpiece 306 can be moved to the opening of the collecting tray 1, which is convenient for its collection.

[0029] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cold heading forming device for thin-walled hollow positioning pins, comprising a collecting plate (1), characterized in that: The top of the collecting tray (1) is fixedly connected to a base (2), both sides of the base (2) are fixedly connected to a driving device (6), the outer side of the driving device (6) is threadedly connected to a moving frame (4), the interior of the moving frame (4) is fixedly connected to a forming device (5), the top of the base (2) is fixedly connected to a fixing device (3), the forming device (5) comprises a forming hydraulic cylinder (501), the interior of the forming hydraulic cylinder (501) is movably connected to a forming hydraulic column (502), and the right side of the forming hydraulic cylinder (501) is fixedly connected to a chamfering sleeve (503).

2. The cold heading forming device for a thin-walled hollow positioning pin according to claim 1, characterized in that: The collecting tray (1) comprises a tray body (101), a rubber pad (102) is fixedly connected to the top of the tray body (101), and both sides of the top of the tray body (101) are arranged in arc shapes.

3. The cold heading forming device for a thin-walled hollow positioning pin according to claim 1, characterized in that: The base (2) comprises a base body (201), the inner side of the base body (201) is fixedly connected to a guide rod (202), the interior of the base body (201) is provided with a discharge chute (203), and the top of the base body (201) is provided with a slide groove (204).

4. The cold heading forming device for a thin-walled hollow positioning pin according to claim 1, characterized in that: The fixing device (3) comprises a fixing block (301), the interior of the fixing block (301) is fixedly connected to a fixing hydraulic cylinder (302), the interior of the fixing hydraulic cylinder (302) is movably connected to a fixing hydraulic column (303), one end of the fixing hydraulic column (303) is fixedly connected to a moving arm (304), the inner side of the moving arm (304) is fixedly connected to a reinforcing block (307), one end of the moving arm (304) is fixedly connected to a fixing sleeve (305), and a workpiece (306) is placed between the fixing sleeves (305).

5. The cold heading forming device for thin-walled hollow positioning pins according to claim 1, characterized in that: The mobile frame (4) comprises a frame body (401), a fixing groove (402) is provided inside the frame body (401), a bottom plate (403) is fixedly connected to the bottom of the frame body (401), a screw groove (404) is provided in the middle of the bottom plate (403), and rod grooves (405) are provided on both sides of the bottom plate (403).

6. The cold heading forming device for thin-walled hollow positioning pins according to claim 1, characterized in that: The driving device (6) comprises a motor (601), an output end of the motor (601) is fixedly connected to a stud (602), and a thread (603) is provided on the outer side of the stud (602).

Images