CN215032585U - Titanium bar pre-bending machine - Google Patents

Abstract

The utility model discloses a titanium stick preflex machine, its technical scheme is: the motor comprises a housin, the inside preflex mechanism that is equipped with of casing, the preflex mechanism extends the casing outside, the preflex mechanism includes the motor, casing one side is located to the motor, the motor passes through the first rotation pole of output shaft fixedly connected with, first rotation pole runs through a casing lateral wall and extends into the casing inside, the beneficial effects of the utility model are that: through the design of preflex mechanism, make the titanium stick when carrying out the preflex, can carry out the centre gripping to the titanium stick through inside centre gripping subassembly, in addition need not add the grinding apparatus when carrying out the preflex, the user only need according to required camber when the device is pressed the titanium stick to press on the press device regulate and control can from top to bottom, can be fine implement the regulation and control according to user's demand, avoided traditional preflex device need design the grinding apparatus at first when the preflex operation and waste time and energy and increased the problem of cost expenditure.

Description

Titanium bar pre-bending machine

Technical Field

The utility model relates to a titanium stick preflex technical field, concretely relates to titanium stick preflex machine.

Background

Titanium is an alpha alloy containing a certain amount of elements for stabilizing an alpha phase, mainly composed of the alpha phase in a balanced state, has a small specific gravity, good heat resistance, good weldability and excellent corrosion resistance, has the disadvantage of low room temperature strength, is generally used as a heat-resistant material and a corrosion-resistant material, and titanium rods can be divided into: the titanium and titanium alloy optical rod, the hair stick, titanium special-shaped stick, titanium square rod, titanium axle, titanium (mixing) shaft, titanium wire pole, the titanium stick is because the difference of using the journey when using, needs to carry out bending process to the titanium stick.

The prior art has the following defects: the existing titanium rod pre-bending device is few on the market, and simultaneously, the titanium rod is because higher hardness has, widely used in medicine, generally be used for making artificial knee and other skeleton etc. mostly, but because the titanium rod of different demands need carry out crooked range when using differently, so on the market a board need set up the grinding apparatus in advance to the titanium rod of a bending molding, carry out the pre-bending according to the grinding apparatus afterwards, it is more time-consuming and energy-consuming, the manufacturing of grinding apparatus also consumes economic cost more simultaneously, it is generally only to use simple clamping tool to carry out the centre gripping when carrying out the pre-bending simultaneously, lead to titanium rod position deviation because of the atress very easily in the pre-bending process, lead to final pre-bending effect not to meet the requirements.

Therefore, the invention is necessary to invent a titanium bar pre-bending machine.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a titanium stick preflex machine, through the design of preflex mechanism, make the titanium stick when carrying out the preflex, can carry out the centre gripping to the titanium stick through inside centre gripping subassembly, the inseparable degree of centre gripping also can be adjusted as required simultaneously to this comes the not equidimension titanium stick of adaptation to carry out the preflex, need at first design the grinding apparatus and waste time and energy and increased the problem of cost expenditure in order to solve traditional preflex device when the preflex operation.

In order to achieve the above object, the present invention provides the following technical solutions: a titanium bar pre-bending machine comprises a shell, wherein a pre-bending mechanism is arranged inside the shell and extends out of the shell;

the pre-bending mechanism comprises a motor, the motor is arranged on one side of the shell, the motor is fixedly connected with a first rotating rod through an output shaft, the first rotating rod penetrates through one side wall of the shell and extends into the shell, the first rotating rod is connected with the shell through a bearing, a first belt pulley is fixedly arranged on the outer portion of the first rotating rod, a second rotating rod is further arranged in the shell, the second rotating rod is connected with one side wall of an inner cavity of the shell through a bearing, a first reciprocating lead screw is fixedly connected on one side of the second rotating rod, a third rotating rod is fixedly connected on one side of the first reciprocating lead screw and extends out of the shell, the third rotating rod is connected with the one side wall of the shell through a bearing, a first sleeve is fixedly arranged on the outer portion of the third rotating rod, and the third rotating rod is connected with the first sleeve through a one-way bearing, the first sleeve is fixedly provided with a second belt pulley outside, a belt is arranged between the second belt pulley and the first belt pulley, the first belt pulley is connected with the second belt pulley through the belt, a first bearing seat is sleeved outside the first reciprocating screw rod, the first bearing seat is connected with the first reciprocating screw rod through a ball nut pair, the bottom of the first bearing seat is fixedly connected with a first telescopic rod, the bottom of the first telescopic rod is fixedly connected with a pressing wheel, a first bevel gear is fixedly arranged outside the third rotary rod, a box body is further fixedly arranged outside the third rotary rod, the third rotary rod is connected with the box body through a bearing, a second reciprocating screw rod is further arranged inside the box body, the second reciprocating screw rod penetrates through the bottom of the box body and extends out of the box body, the second reciprocating screw rod is connected with the box body through a bearing, and a second bevel gear is fixedly arranged at the top of the second reciprocating screw rod, the second bevel gear is arranged at the bottom of the first bevel gear and meshed with the first bevel gear, a second bearing seat is sleeved outside the second reciprocating screw rod and connected with the second reciprocating screw rod through a ball nut pair, a second telescopic rod is fixedly arranged on one side of the second bearing seat, an L-shaped plate is fixedly arranged on one side of the second telescopic rod, and one side of the L-shaped plate is fixedly connected with one side of the first telescopic rod;

the pre-bending mechanism further comprises an auxiliary component, the auxiliary component comprises a frame body, the frame body is fixedly arranged on one side of the shell, and the motor is fixedly arranged inside the frame body.

Preferably, the pre-bending mechanism comprises two clamping assemblies, the clamping assemblies comprise a third bevel gear, a second sleeve is arranged outside the first rotating rod and connected with the first rotating rod through a one-way bearing, the second sleeve is fixedly arranged in the third bevel gear, the top of the first rotating rod is provided with a third reciprocating screw rod, a fourth bevel gear is fixedly arranged at the bottom of the third reciprocating screw rod, the fourth bevel gear is arranged at the top of the third bevel gear, the fourth bevel gear is meshed with the third bevel gear, a third bearing seat is sleeved outside the third reciprocating screw rod, the third bearing seat is connected with a third reciprocating screw rod through a ball nut pair, the top of the third reciprocating screw rod is fixedly provided with a fourth reciprocating screw rod, and a fourth bearing seat is sleeved outside the fourth reciprocating screw rod and is connected with the fourth reciprocating screw rod through a ball nut pair.

Preferably, a vertical groove is formed in one side wall of the inner cavity of the shell, a connecting plate and a sliding block are fixedly arranged on one side of the connecting plate, the sliding block is arranged inside the vertical groove, and an arc-shaped clamping plate is fixedly arranged on the other side of the third bearing and the other side of the fourth bearing.

Preferably, a transverse plate is fixedly arranged inside the shell, the two third reciprocating screw rods respectively penetrate through the transverse plate, and the two third reciprocating screw rods are respectively connected with the transverse plate through bearings.

Preferably, the inside titanium stick body that is equipped with of casing, two third bearing seats and two fourth bearing seats are located at titanium stick body top, titanium stick body top and bottom contact with four arc splint surfaces respectively.

Preferably, the transverse groove is formed in the top of the shell, the moving plate is fixedly arranged on the top of the first bearing block, a limiting block is fixedly arranged on the top of the moving plate and is arranged in the transverse groove, and the sealing door is arranged on the front side of the shell and connected with the front side of the shell through hinges.

Preferably, the auxiliary component comprises an L-shaped support plate, the L-shaped support plate is fixedly arranged on one side of the shell, and the motor is fixedly arranged on the inner side of the L-shaped support plate.

The utility model has the advantages that:

1. the utility model discloses a design of preflex mechanism, make the titanium stick when carrying out the preflex, can carry out the centre gripping to the titanium stick through inside centre gripping subassembly, the inseparability degree of centre gripping also can be adjusted as required simultaneously, so that the titanium stick of adaptation equidimension not carries out the preflex, in addition need not add the grinding apparatus when carrying out the preflex, the user only need according to required camber when the device is pressed the titanium stick to the press device regulate and control from top to bottom can, can be fine carry out the regulation and control according to user's demand, avoided traditional preflex device need design the grinding apparatus at first and waste time and energy and increased the problem of cost expenditure when the preflex operation;

2. the utility model discloses a simple mechanism design does not remove to add too much spare part when realizing carrying out the preflex operation to the titanium stick, and whole operation process is simple easily to be handed simultaneously, has greatly reduced and has used the threshold, and this device benefits from simple structural design in addition, makes production relatively easily to control the economic cost when making effectively, relatively be fit for using widely on a large scale.

Drawings

Fig. 1 is a perspective view provided by the present invention;

fig. 2 is a schematic view of the overall structure provided by the present invention;

fig. 3 is an enlarged view of a point a in fig. 2 according to the present invention;

fig. 4 is a schematic view of the overall structure of embodiment 2 provided by the present invention;

in the figure: the device comprises a shell 1, a motor 2, a first rotating rod 3, a first belt pulley 4, a second rotating rod 5, a first reciprocating screw rod 6, a third rotating rod 7, a first sleeve 8, a second belt pulley 9, a belt 10, a first bearing seat 11, a first telescopic rod 12, a pressing wheel 13, a first bevel gear 14, a box body 15, a second reciprocating screw rod 16, a second bevel gear 17, a second bearing seat 18, a second telescopic rod 19, a 20L-shaped plate, a frame body 21, a third bevel gear 22, a third reciprocating screw rod 23, a fourth reciprocating screw rod 24, a vertical groove 25, an arc-shaped clamping plate 26, a titanium rod body 27, a sealing door 28 and a supporting plate 29L-shaped.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Embodiment 1, referring to fig. 1-3, the titanium rod pre-bending machine provided by the present invention comprises a housing 1, wherein a pre-bending mechanism is arranged inside the housing 1, and the pre-bending mechanism extends out of the housing 1;

the pre-bending mechanism comprises a motor 2, the motor 2 is arranged on one side of a shell 1, the motor 2 is fixedly connected with a first rotating rod 3 through an output shaft, the first rotating rod 3 penetrates through one side wall of the shell 1 and extends into the interior of the shell 1, the first rotating rod 3 is connected with the shell 1 through a bearing, a first belt pulley 4 is fixedly arranged on the outer portion of the first rotating rod 3, a second rotating rod 5 is further arranged in the shell 1, the second rotating rod 5 is connected with one side wall of an inner cavity of the shell 1 through a bearing, a first reciprocating screw rod 6 is fixedly connected on one side of the second rotating rod 5, a third rotating rod 7 is fixedly connected on one side of the first reciprocating screw rod 6, the third rotating rod 7 penetrates through one side wall of the shell 1 and extends out of the shell 1, the third rotating rod 7 is connected with one side wall of the shell 1 through a bearing, and a first sleeve 8 is fixedly arranged on the outer portion of the third rotating rod 7, the third rotating rod 7 is connected with the first sleeve 8 through an one-way bearing, a second belt pulley 9 is fixedly arranged outside the first sleeve 8, a belt 10 is arranged between the second belt pulley 9 and the first belt pulley 4, the first belt pulley 4 is connected with the second belt pulley 9 through the belt 10, a first bearing seat 11 is sleeved outside the first reciprocating screw rod 6, the first bearing seat 11 is connected with the first reciprocating screw rod 6 through a ball nut pair, a first telescopic rod 12 is fixedly connected to the bottom of the first bearing seat 11, a pressing wheel 13 is fixedly connected to the bottom of the first telescopic rod 12, a first bevel gear 14 is fixedly arranged outside the third rotating rod 7, a box body 15 is fixedly arranged outside the third rotating rod 7, the third rotating rod 7 is connected with the box body 15 through a bearing, and a second reciprocating screw rod 16 is further arranged inside the box body 15, the second reciprocating screw rod 16 penetrates through the bottom of the box body 15 and extends out of the box body 15, the second reciprocating screw rod 16 is connected with the box body 15 through a bearing, a second bevel gear 17 is fixedly arranged at the top of the second reciprocating screw rod 16, the second bevel gear 17 is arranged at the bottom of the first bevel gear 14, the second bevel gear 17 is meshed with the first bevel gear 14, a second bearing seat 18 is sleeved outside the second reciprocating screw rod 16, the second bearing seat 18 is connected with the second reciprocating screw rod 16 through a ball nut pair, a second telescopic rod 19 is fixedly arranged on one side of the second bearing seat 18, an L-shaped plate 20 is fixedly arranged on one side of the second telescopic rod 19, and one side of the L-shaped plate 20 is fixedly connected with one side of the first telescopic rod 12;

the pre-bending mechanism further comprises an auxiliary component, the auxiliary component comprises a frame body 21, the frame body 21 is fixedly arranged on one side of the shell 1, and the motor 2 is fixedly arranged in the frame body 21;

further, the pre-bending mechanism comprises two clamping components, each clamping component comprises a third bevel gear 22, a second sleeve is arranged outside the first rotating rod 3, the second sleeve is connected with the first rotating rod 3 through a one-way bearing, the second sleeve is fixedly arranged inside the third bevel gear 22, a third reciprocating screw 23 is arranged at the top of the first rotating rod 3, a fourth bevel gear is fixedly arranged at the bottom of the third reciprocating screw 23, the fourth bevel gear is arranged at the top of the third bevel gear 22, the fourth bevel gear is meshed with the third bevel gear 22, a third bearing seat is sleeved outside the third reciprocating screw 23, the third bearing seat is connected with the third reciprocating screw 23 through a ball nut pair, a fourth reciprocating screw 24 is fixedly arranged at the top of the third reciprocating screw 23, and a fourth bearing seat is sleeved outside the fourth reciprocating screw 24, the fourth bearing seat is connected with the fourth reciprocating screw rod 24 through a ball nut pair, and the one-way bearing can be used for classifying and controlling a user to determine whether to rotate;

furthermore, a vertical groove 25 is formed in one side wall of the inner cavity of the shell 1, connecting plates are fixedly arranged on one sides of the third bearing seat and the fourth bearing seat respectively, sliding blocks are fixedly arranged on one sides of the two connecting plates respectively, the two sliding blocks are arranged in the vertical groove 25, arc-shaped clamping plates 26 are fixedly arranged on the other sides of the third bearing seat and the fourth bearing seat respectively, and the vertical groove 25 can limit the third bearing seat and the fourth bearing seat so that the third bearing seat and the fourth bearing seat can move up and down;

furthermore, a transverse plate is fixedly arranged inside the shell 1, the two third reciprocating screw rods 23 respectively penetrate through the transverse plate, the two third reciprocating screw rods 23 are respectively connected with the transverse plate through bearings, and the transverse plate can provide support for the third reciprocating screw rods 23;

further, a titanium rod body 27 is arranged inside the shell 1, the top of the titanium rod body 27 is arranged between the two third bearing seats and the two fourth bearing seats, the top and the bottom of the titanium rod body 27 are respectively contacted with the surfaces of the four arc-shaped clamping plates 26, and the titanium rod body 27 can be clamped by the arc-shaped clamping plates 26;

further, a transverse groove has been seted up at 1 top of casing, the fixed movable plate that is equipped with in 11 tops of first bearing frame, the fixed stopper that is equipped with in movable plate top, the stopper is located inside the transverse groove, 1 front side of casing is equipped with sealing door 28, sealing door 28 passes through hinge connection with 1 front side of casing, and sealing door 28 can convenient to use person take out and put into the titanium stick.

The utility model discloses a use as follows: when the utility model is used, firstly, the motor 2 is connected with an external power supply, because the third rotating rod 7 is connected with the first sleeve 8 through the one-way bearing, the first rotating rod 3 is connected with the second sleeve through the one-way bearing, when the motor 2 rotates forwards, the second belt pulley 9 drives the first sleeve 8 to rotate, the first sleeve 8 rotates idly and the third rotating rod 7 does not rotate, the first rotating rod 3 drives the second sleeve to rotate, the second sleeve drives the third bevel gear 22 to rotate, when the motor 2 rotates backwards, the second belt pulley 9 drives the first sleeve 8 to rotate, the first sleeve 8 drives the third rotating rod 7 to rotate, the first rotating rod 3 drives the second sleeve to rotate, the second sleeve rotates idly and the third bevel gear 22 does not rotate, when the titanium rod body 27 is prebent, the sealing door 28 is firstly opened, the titanium rod body 27 is placed between the four arc-shaped clamping plates 26, the motor 2, the motor 2 works to drive the first rotating rod 3 to rotate, the first rotating rod 3 drives the second sleeve to rotate, the second sleeve drives the third bevel gear 22 to rotate, the third bevel gear 22 drives the fourth bevel gear to rotate, the fourth bevel gear drives the third reciprocating screw 23 to rotate, the third reciprocating screw 23 drives the fourth reciprocating screw 24 to rotate, at the moment, the third reciprocating screw 23 drives the third bearing seat to move upwards, the third bearing seat drives one of the arc-shaped clamping plates 26 to move upwards, the fourth reciprocating screw 24 drives the fourth bearing seat to move downwards, the fourth bearing seat drives the other arc-shaped clamping plate 26 to move downwards, until the arc-shaped clamping plates 26 tightly clamp the titanium bar body 27, the motor 2 rotates reversely, the first rotating rod 3 drives the first belt pulley 4 to rotate, the first belt pulley 4 drives the second belt pulley 9 to rotate through the belt 10, and the second belt pulley 9 drives the first sleeve 8 to rotate, the first sleeve 8 drives the third rotating rod 7 to rotate, the third rotating rod 7 drives the first reciprocating screw rod 6 to rotate, the first reciprocating screw rod 6 drives the first bearing seat 11 to move, the first bearing seat 11 drives the first telescopic rod 12 to move, the first telescopic rod 12 drives the pressing wheel 13 to move left and right, meanwhile, the third rotating rod 7 drives the first bevel gear 14 to rotate, the first bevel gear 14 drives the second bevel gear 17 to rotate, the second bevel gear 17 drives the second reciprocating screw rod 16 to rotate, the second reciprocating screw rod 16 drives the second bearing seat 18 to move up and down, the second bearing seat 18 drives the second telescopic rod 19 to move up and down, the second telescopic rod 19 drives the L-shaped plate 20 to move up and down, the L-shaped plate 20 drives the first telescopic rod 12 to stretch and retract, at the moment, the first telescopic rod 12 drives the pressing wheel 13 to move left and right, the pressing wheel 13 is also driven to move up and down, so that the pressing wheel 13 presses the titanium rod body 27, when the pressing is completed, the motor 2 rotates forward according to the above principle, and the titanium rod body 27 can be taken out through the reverse steps.

Embodiment 2, refer to fig. 4, the utility model provides a pair of titanium stick preflex machine, including L shape backup pad 29, L shape backup pad 29 is fixed and is located casing 1 one side, motor 2 is fixed and is located L shape backup pad 29 inboardly.

The utility model discloses a use as follows: when the utility model is used, firstly, the motor 2 is connected with an external power supply, because the third rotating rod 7 is connected with the first sleeve 8 through the one-way bearing, the first rotating rod 3 is connected with the second sleeve through the one-way bearing, when the motor 2 rotates forwards, the second belt pulley 9 drives the first sleeve 8 to rotate, the first sleeve 8 rotates idly and the third rotating rod 7 does not rotate, the first rotating rod 3 drives the second sleeve to rotate, the second sleeve drives the third bevel gear 22 to rotate, when the motor 2 rotates backwards, the second belt pulley 9 drives the first sleeve 8 to rotate, the first sleeve 8 drives the third rotating rod 7 to rotate, the first rotating rod 3 drives the second sleeve to rotate, the second sleeve rotates idly and the third bevel gear 22 does not rotate, when the titanium rod body 27 is prebent, the sealing door 28 is firstly opened, the titanium rod body 27 is placed between the four arc-shaped clamping plates 26, the motor 2, the work of motor 2 drives first rotation pole 3 and rotates, first rotation pole 3 drives the second sleeve and rotates, the second sleeve drives third bevel gear 22 and rotates, third bevel gear 22 drives the rotation of fourth bevel gear, fourth bevel gear drives the reciprocal lead screw 23 of third and rotates, the reciprocal lead screw 23 of third drives the reciprocal lead screw 24 of fourth and rotates, the reciprocal lead screw 23 of third drives third bearing frame rebound this moment, L shape backup pad 29 can carry out the during operation at motor 2 and provide fine support to motor 2, simultaneously because L shape backup pad 29 does not have the leakproofness, can also provide good heat dissipation space for motor 2 when carrying out the support.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims (7)

1. The utility model provides a titanium stick preflex machine, includes casing (1), its characterized in that: a pre-bending mechanism is arranged inside the shell (1) and extends out of the shell (1);

the prebending mechanism comprises a motor (2), the motor (2) is arranged on one side of a shell (1), the motor (2) is connected with a first rotating rod (3) through an output shaft, the first rotating rod (3) penetrates through one side wall of the shell (1) and extends into the shell (1), the first rotating rod (3) is connected with the shell (1) through a bearing, a first belt pulley (4) is fixedly arranged on the outer portion of the first rotating rod (3), a second rotating rod (5) is further arranged in the shell (1), the second rotating rod (5) is connected with one side wall of an inner cavity of the shell (1) through a bearing, a first reciprocating screw rod (6) is fixedly connected on one side of the second rotating rod (5), a third rotating rod (7) is fixedly connected on one side of the first reciprocating screw rod (6), and the third rotating rod (7) penetrates through one side wall of the shell (1) and extends out of the shell (1), the third rotating rod (7) is connected with one side wall of the shell (1) through a bearing, a first sleeve (8) is fixedly arranged outside the third rotating rod (7), the third rotating rod (7) is connected with the first sleeve (8) through an one-way bearing, a second belt pulley (9) is fixedly arranged outside the first sleeve (8), a belt (10) is arranged between the second belt pulley (9) and the first belt pulley (4), the first belt pulley (4) is connected with the second belt pulley (9) through the belt (10), a first bearing seat (11) is sleeved outside the first reciprocating screw rod (6), the first bearing seat (11) is connected with the first reciprocating screw rod (6) through a ball nut pair, a first telescopic rod (12) is fixedly connected to the bottom of the first bearing seat (11), a press pressing wheel (13) is fixedly connected to the bottom of the first telescopic rod (12), the device is characterized in that a first bevel gear (14) is fixedly arranged outside the third rotating rod (7), a box body (15) is fixedly arranged outside the third rotating rod (7), the third rotating rod (7) is connected with the box body (15) through a bearing, a second reciprocating screw rod (16) is further arranged inside the box body (15), the second reciprocating screw rod (16) penetrates through the bottom of the box body (15) and extends out of the box body (15), the second reciprocating screw rod (16) is connected with the box body (15) through a bearing, a second bevel gear (17) is fixedly arranged at the top of the second reciprocating screw rod (16), the second bevel gear (17) is arranged at the bottom of the first bevel gear (14), the second bevel gear (17) is meshed with the first bevel gear (14), a second bearing seat (18) is sleeved outside the second reciprocating screw rod (16), and the second bearing seat (18) is connected with the second reciprocating screw rod (16) through a ball nut pair, a second telescopic rod (19) is fixedly arranged on one side of the second bearing seat (18), an L-shaped plate (20) is fixedly arranged on one side of the second telescopic rod (19), and one side of the L-shaped plate (20) is fixedly connected with one side of the first telescopic rod (12);

the pre-bending mechanism further comprises an auxiliary component, the auxiliary component comprises a frame body (21), the frame body (21) is fixedly arranged on one side of the shell (1), and the motor (2) is fixedly arranged in the frame body (21).

2. The titanium bar prebending machine of claim 1, wherein: the pre-bending mechanism comprises two clamping components, each clamping component comprises a third bevel gear (22), a second sleeve is arranged outside the first rotating rod (3), the second sleeve is connected with the first rotating rod (3) through a one-way bearing, the second sleeve is fixedly arranged inside the third bevel gear (22), a third reciprocating screw rod (23) is arranged at the top of the first rotating rod (3), a fourth bevel gear is fixedly arranged at the bottom of the third reciprocating screw rod (23), the fourth bevel gear is arranged at the top of the third bevel gear (22), the fourth bevel gear is meshed with the third bevel gear (22), a third bearing seat is sleeved outside the third reciprocating screw rod (23), the third bearing seat is connected with the third reciprocating screw rod (23) through a ball nut pair, a fourth reciprocating screw rod (24) is fixedly arranged at the top of the third reciprocating screw rod (23), the fourth reciprocating screw rod (24) is externally sleeved with a fourth bearing seat, and the fourth bearing seat is connected with the fourth reciprocating screw rod (24) through a ball nut pair.

3. The titanium bar prebending machine of claim 2, wherein: casing (1) inner chamber lateral wall has been seted up and has been erected groove (25), third bearing and fourth bearing one side are fixed respectively and are equipped with the connecting plate, two connecting plate one side is fixed respectively and is equipped with the slider, two the slider is all located and is erected inside groove (25), third bearing and fourth bearing opposite side are fixed arc splint (26) of being equipped with respectively.

4. The titanium bar prebending machine of claim 2, wherein: the shell (1) is internally and fixedly provided with a transverse plate, the two third reciprocating screw rods (23) respectively penetrate through the transverse plate, and the two third reciprocating screw rods (23) are respectively connected with the transverse plate through bearings.

5. The titanium bar prebending machine of claim 1, wherein: the novel bearing shell is characterized in that a titanium rod body (27) is arranged inside the shell (1), the top of the titanium rod body (27) is arranged between two third bearing seats and two fourth bearing seats, and the top and the bottom of the titanium rod body (27) are respectively in surface contact with four arc-shaped clamping plates (26).

6. The titanium bar prebending machine of claim 1, wherein: the improved structure of the automobile seat is characterized in that a transverse groove is formed in the top of the shell (1), a movable plate is fixedly arranged on the top of the first bearing block (11), a limiting block is fixedly arranged on the top of the movable plate and is arranged in the transverse groove, a sealing door (28) is arranged on the front side of the shell (1), and the sealing door (28) is connected with the front side of the shell (1) through a hinge.

7. The titanium bar prebending machine of claim 1, wherein: the auxiliary component comprises an L-shaped supporting plate (29), the L-shaped supporting plate (29) is fixedly arranged on one side of the shell (1), and the motor (2) is fixedly arranged on the inner side of the L-shaped supporting plate (29).

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