Bolt cold heading machine convenient to fix

Abstract

The utility model relates to the technical field of cold heading machines, and provides a bolt cold heading machine convenient to fix, which comprises a rack, the top of the rack is fixedly connected with a placing seat for placing a workpiece, the outer side of the placing seat is provided with a positioning mechanism, the positioning mechanism comprises a reciprocating screw rod, and the reciprocating screw rod is rotatably connected to the bottom of the rack. The reciprocating lead screw is in threaded connection with a movable seat, a plurality of first connecting rods are hinged to the outer edge of the movable seat, movable rods are hinged to the top ends of the first connecting rods, clamping pieces are arranged at the top ends of the movable rods, a crown gear is fixedly connected to the bottom of the reciprocating lead screw, a driving mechanism is arranged at the bottom end of the rack, and a cold heading mechanism is arranged at the top of the rack. And a linkage mechanism which is driven by a driving mechanism to drive the cold heading mechanism to do up-down reciprocating translation is arranged on the outer side of the rack. In the whole machining process, workpieces can be automatically fixed and subjected to cold heading machining, manual one-by-one operation is not needed, operation is easy, and machining efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading machines, and in particular to a bolt cold heading machine which is easy to fix. Background Art

[0002] A bolt is a mechanical part, a fastener that needs to be used with a nut. It is used to fasten and connect two parts with through holes. It has a firm connection and is easy to disassemble. It is very convenient to use and can be seen everywhere in life. People need to use a cold heading machine when producing bolts.

[0003] After searching, the Chinese patent publication number CN218798894U discloses "a cold heading machine for bolt processing, including a main body mechanism, a screening mechanism and a processing mechanism, the screening mechanism is located at the left end of the upper end of the main body mechanism, the processing mechanism is located at the inner end of the main body mechanism, the main body mechanism includes a base plate, a support column, an anti-slip pad, a pad and a cold heading machine body, the support column is fixedly mounted on the lower end of the base plate, the anti-slip pad is fixedly mounted on the lower end of the support column, the pad is fixedly mounted on the right end of the upper end of the base plate, and the cold heading machine body is fixedly mounted on the upper end of the pad".

[0004] The above-mentioned equipment mainly drives the push rod downward by the hydraulic cylinder to make the pressure block cold forge the workpiece on the mold body. The workpiece needs to be fixed during the cold forging process. The equipment uses conventional fixing bolts or cylinder clamping methods to fix the workpiece. After the workpiece is processed, it needs to be taken out. In the process of continuous processing of different workpieces, different workpieces need to be repeatedly fixed and taken out, which requires manual control. The operation process is complicated and the processing efficiency is low. In view of this, the utility model proposes a bolt cold forging machine that is easy to fix. Utility Model Content

[0005] The utility model provides a bolt cold heading machine which is convenient for fixing, and solves the problem of complicated operation in the fixing and taking-out process of workpieces in the prior art.

[0006] The technical scheme of the utility model is as follows: a bolt cold heading machine that is easy to fix, comprising a frame, a placement seat for placing workpieces is fixedly connected to the top of the frame, a positioning mechanism is arranged on the outer side of the placement seat, the positioning mechanism comprises a reciprocating screw rod, the reciprocating screw rod is rotatably connected to the bottom of the frame, a movable seat is threadedly connected to the reciprocating screw rod, a plurality of connecting rods 1 that are equidistantly distributed around the movable seat are hinged on the outer edge of the movable seat, a plurality of the top ends of the connecting rods 1 are hinged with movable rods, and a plurality of the movable rods penetrate The top wall of the frame, and several movable rods are slidably connected to the top wall of the frame, the top ends of several of the movable rods are provided with clamping members for clamping bolts through the centripetal translation of the movable rods, the bottom of the reciprocating screw is fixedly connected with a crown gear, the bottom end of the frame is provided with a driving mechanism for driving the crown gear to rotate intermittently, the top of the frame is provided with a cold heading mechanism for cold heading the workpiece through translation, and the outer side of the frame is provided with a linkage mechanism for driving the cold heading mechanism to reciprocate up and down through the drive of the driving mechanism.

[0007] Preferably, a plurality of slide grooves corresponding to the movable rods are provided on the top of the frame, and a plurality of the movable rods are slidably connected to the corresponding slide grooves.

[0008] Preferably, the clamping member includes a connecting seat, which is fixedly connected to the top of the corresponding movable rod, and a sliding rod that passes through the connecting seat is slidably connected to the connecting seat, one end of the sliding rod is fixedly connected to a splint, and the other end of the sliding rod is fixedly connected to a limiting block.

[0009] Preferably, the clamping member further comprises a spring, wherein the spring is sleeved on the slide rod, one end of the spring abuts against the clamping plate, and the other end of the spring abuts against the connecting seat.

[0010] Preferably, the driving mechanism comprises a dual-axis motor, the dual-axis motor is fixedly mounted on the inner side of the frame, one output shaft of the dual-axis motor is fixedly connected to a non-full gear, and the non-full gear is intermittently meshed with the crown gear.

[0011] Preferably, the number of teeth of the incomplete gear is greater than the number of teeth of the crown gear, and the incomplete gear is arranged perpendicular to the crown gear.

[0012] Preferably, the cold heading mechanism includes a mounting frame, which is fixedly connected to the top of the frame, the top of the mounting frame is slidably connected to a pressure rod that passes through the mounting frame, the bottom end of the pressure rod is fixedly connected to the mold, and the top end of the pressure rod is fixedly connected to a connecting plate.

[0013] Preferably, the linkage mechanism includes an eccentric wheel, which is fixedly connected to the other output shaft of the dual-axis motor. The outer edge of the eccentric wheel is rotatably connected to connecting rod 2, and the end of connecting rod 2 away from the eccentric wheel is hinged to connecting rod 3, and the top of connecting rod 3 is fixedly connected to the connecting plate.

[0014] The working principle and beneficial effects of the utility model are as follows: the crown gear is driven to rotate intermittently by the driving mechanism, which makes the reciprocating screw rotate intermittently. During the rotation of the crown gear, the movable seat is translated downward to the lowest position, which makes all the connecting rods drive the corresponding clamping parts to translate centrifugally, so that all the clamping parts can simultaneously center and fix the workpiece, thereby realizing rapid fixation of the workpiece. Then, the linkage mechanism drives the cold heading mechanism to translate downward to perform cold heading processing on the workpiece under the drive mechanism. After the processing is completed, the driving mechanism continues to drive the crown gear to rotate, which makes the movable seat translate upward to the highest position, which makes all the connecting rods drive the corresponding clamping parts to translate centrifugally, thereby making all the clamping parts disengage from the processed workpiece at the same time, so that the workpiece can be easily taken out. The entire processing process can automatically fix and cold head the workpiece without manual operation one by one. The operation is simple, which greatly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a structural schematic diagram of a bolt cold heading machine that is easy to fix in the utility model;

[0017] Figure 2 It is a structural schematic diagram of the positioning mechanism of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the clamping member of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the driving mechanism of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the linkage mechanism of the cold heading mechanism of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the utility model.

[0022] In the figure: 1. frame; 11. slide; 2. placement seat; 3. positioning mechanism; 31. reciprocating screw; 32. movable seat; 33. connecting rod one; 34. movable rod; 35. clamping piece; 351. connecting seat; 352. slide rod; 353. splint; 354. limit block; 355. spring; 36. crown gear; 4. driving mechanism; 41. dual-axis motor; 42. not playing full gear; 5. cold heading mechanism; 51. mounting frame; 52. pressure rod; 53. mold; 54. connecting plate; 6. linkage mechanism; 61. eccentric wheel; 62. connecting rod two; 63. connecting rod three. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 to Figure 6 As shown, the present embodiment proposes a bolt cold heading machine that is easy to fix, including a frame 1, a placement seat 2 for placing a workpiece is fixedly connected to the top of the frame 1, a positioning mechanism 3 is arranged on the outer side of the placement seat 2, and the positioning mechanism 3 includes a reciprocating screw rod 31, the reciprocating screw rod 31 is rotatably connected to the bottom of the frame 1, a movable seat 32 is threadedly connected to the reciprocating screw rod 31, and the outer edge of the movable seat 32 is hinged with a plurality of connecting rods 33 that are equidistantly distributed around the movable seat 32, and the top ends of the plurality of connecting rods 33 are hinged with movable rods 34, and the plurality of movable rods 34 penetrate the top wall of the frame 1, and the plurality of movable rods 34 are slidably connected to the top wall of the frame 1. A plurality of slide grooves 11 corresponding to the movable rods 34 are provided on the top of the frame 1, and the plurality of movable rods 34 are slidably connected with the corresponding slide grooves 11. The tops of the plurality of movable rods 34 are provided with clamping members 35 for clamping the bolts through the centripetal translation of the movable rods 34. A crown gear 36 is fixedly connected to the bottom of the reciprocating screw rod 31. A driving mechanism 4 for driving the crown gear 36 to rotate intermittently is provided at the bottom end of the frame 1. A cold heading mechanism 5 for cold heading the workpiece through translation is provided on the top of the frame 1. A linkage mechanism 6 for driving the cold heading mechanism 5 to reciprocate up and down through the drive of the driving mechanism 4 is provided on the outer side of the frame 1.

[0025] The crown gear 36 is driven by the driving mechanism 4 to rotate intermittently, which makes the reciprocating screw 31 rotate intermittently. During the rotation of the crown gear 36, the movable seat 32 is translated downward to the lowest position, which makes all the connecting rods 33 drive the corresponding clamping members 35 to translate centrifugally, so that all the clamping members 35 can simultaneously center and fix the workpiece, thereby realizing rapid fixation of the workpiece. Then, the linkage mechanism 6, driven by the driving mechanism 4, makes the cold heading mechanism 5 translate downward to perform cold heading processing on the workpiece. After the processing is completed, the driving mechanism 4 continues to drive the crown gear 36 to rotate, which makes the movable seat 32 translate upward to the highest position, which makes all the connecting rods 33 drive the corresponding clamping members 35 to translate centrifugally, thereby making all the clamping members 35 disengage from the processed workpiece at the same time, so that the workpiece can be easily removed. The entire processing process can automatically fix and cold head the workpiece without manual operation one by one. The operation is simple, which greatly improves the processing efficiency.

[0026] Furthermore, the clamping member 35 includes a connection seat 351, which is fixedly connected to the top of the corresponding movable rod 34, and a slide bar 352 that penetrates the connection seat 351 is slidably connected to the connection seat 351, one end of the slide bar 352 is fixedly connected to a clamping plate 353, and the other end of the slide bar 352 is fixedly connected to a limit block 354, and a spring 355 is sleeved on the slide bar 352, one end of the spring 355 contacts the clamping plate 353, and the other end of the spring 355 contacts the connection seat 351. The spring 355 can buffer the clamping plate 353, so that the clamping plate 353 can be in elastic contact with the workpiece, and it can also prevent the clamping plate 353 from acting too much on the workpiece and causing damage to it.

[0027] Furthermore, the driving mechanism 4 includes a dual-axis motor 41, which is fixedly mounted on the inner side of the frame 1. One output shaft of the dual-axis motor 41 is fixedly connected to a non-playing gear 42, which is intermittently meshed with the crown gear 36. The number of teeth of the non-playing gear 42 is greater than the number of teeth of the crown gear 36, and the non-playing gear 42 is arranged vertically with the crown gear 36. By starting the dual-axis motor 41 to drive the non-playing gear 42, when the non-playing gear 42 is meshed with the crown gear 36, the crown gear 36 drives the reciprocating screw 31 to rotate, so that the movable seat 32 can be translated downward to the lowest or highest position, so that the clamping member 35 clamps the workpiece or disengages from it.

[0028] Furthermore, the cold heading mechanism 5 includes a mounting frame 51, which is fixedly connected to the top of the frame 1. The top of the mounting frame 51 is slidably connected to a pressure rod 52 that passes through the mounting frame 51. The bottom end of the pressure rod 52 is fixedly connected to a mold 53. The top of the pressure rod 52 is fixedly connected to a connecting plate 54. The linkage mechanism 6 includes an eccentric wheel 61, which is fixedly connected to the other output shaft of the dual-axis motor 41. The outer edge of the eccentric wheel 61 is rotatably connected to a connecting rod 2 62. The end of the connecting rod 2 62 away from the eccentric wheel 61 is hinged to a connecting rod 3 63, and the top of the connecting rod 3 63 is fixedly connected to the connecting plate 54. The eccentric wheel 61 can be driven by the dual-axis motor 41 to rotate, so that the connecting rod 2 62 drives the connecting rod 3 63 to reciprocate up and down, and the connecting plate 54 drives the pressure rod 52 to slide back and forth, so that the mold 53 can be translated up and down. When the mold 53 is translated downward, the workpiece is cold headed, and when the mold 53 is translated upward, the processed workpiece can be taken out.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bolt cold heading machine that is easy to fix, comprising a frame (1), the top of the frame (1) being fixedly connected with a placement seat (2) for placing a workpiece, characterized in that: A positioning mechanism (3) is arranged on the outer side of the placement seat (2), and the positioning mechanism (3) comprises a reciprocating screw (31), the reciprocating screw (31) is rotatably connected to the bottom of the frame (1), a movable seat (32) is threadedly connected to the reciprocating screw (31), the outer edge of the movable seat (32) is hinged with a plurality of connecting rods (33) equidistantly distributed around the movable seat (32), the top ends of the plurality of connecting rods (33) are hinged with movable rods (34), the plurality of movable rods (34) penetrate the top wall of the frame (1), and the plurality of movable rods (34) are slidably connected to the top wall of the frame (1). The movable rods (34) are dynamically connected, the top ends of the plurality of movable rods (34) are each provided with a clamping member (35) for clamping a bolt through centripetal translation of the movable rods (34), the bottom of the reciprocating screw rod (31) is fixedly connected with a crown gear (36), the bottom end of the frame (1) is provided with a driving mechanism (4) for driving the crown gear (36) to intermittently rotate, the top end of the frame (1) is provided with a cold heading mechanism (5) for cold heading a workpiece through translation, and the outer side of the frame (1) is provided with a linkage mechanism (6) for driving the cold heading mechanism (5) to reciprocate up and down through the drive of the driving mechanism (4).

2. A bolt cold heading machine for easy fixing according to claim 1, characterized in that: A plurality of slide grooves (11) corresponding one to one with the movable rods (34) are provided on the top of the frame (1), and a plurality of the movable rods (34) are slidably connected to the corresponding slide grooves (11).

3. The bolt cold heading machine for easy fixing according to claim 1, characterized in that: The clamping member (35) comprises a connecting seat (351), the connecting seat (351) being fixedly connected to the top of the corresponding movable rod (34), the connecting seat (351) being slidably connected to a sliding rod (352) penetrating the connecting seat (351), one end of the sliding rod (352) being fixedly connected to a clamping plate (353), and the other end of the sliding rod (352) being fixedly connected to a limiting block (354).

4. A bolt cold heading machine for easy fixing according to claim 3, characterized in that: The clamping member (35) further comprises a spring (355), wherein the spring (355) is sleeved on the slide rod (352), one end of the spring (355) abuts against the clamping plate (353), and the other end of the spring (355) abuts against the connecting seat (351).

5. The bolt cold heading machine for easy fixing according to claim 1, characterized in that: The driving mechanism (4) comprises a dual-axis motor (41), the dual-axis motor (41) being fixedly mounted on the inner side of the frame (1), one output shaft of the dual-axis motor (41) being fixedly connected to a non-full gear (42), the non-full gear (42) being intermittently meshed with the crown gear (36).

6. The bolt cold heading machine for easy fixing according to claim 5, characterized in that: The number of teeth of the non-playing full gear (42) is greater than the number of teeth of the crown gear (36), and the non-playing full gear (42) is arranged vertically to the crown gear (36).

7. The bolt cold heading machine for easy fixing according to claim 5, characterized in that: The cold heading mechanism (5) comprises a mounting frame (51), the mounting frame (51) being fixedly connected to the top of the frame (1), the top of the mounting frame (51) being slidably connected to a pressure rod (52) penetrating the mounting frame (51), the bottom end of the pressure rod (52) being fixedly connected to a mold (53), and the top end of the pressure rod (52) being fixedly connected to a connecting plate (54).

8. The bolt cold heading machine for easy fixing according to claim 7, characterized in that: The linkage mechanism (6) comprises an eccentric wheel (61), the eccentric wheel (61) being fixedly connected to the other output shaft of the dual-axis motor (41), the outer edge of the eccentric wheel (61) being rotatably connected to a second connecting rod (62), an end of the second connecting rod (62) away from the eccentric wheel (61) being hinged to a third connecting rod (63), and the top of the third connecting rod (63) being fixedly connected to the connecting plate (54).

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