Gear blank fixing device for gear machining

Abstract

The invention provides a gear blank fixing device for gear machining, and relates to the technical field of gear machining, the gear blank fixing device comprises a base, a plurality of supporting plates are fixedly arranged on the base, hydraulic rods are fixedly mounted on the supporting plates, a push plate is fixedly arranged on the hydraulic rods, and two clamping blocks are fixedly arranged on the push plate; an auxiliary clamping device is arranged between the two clamping blocks, a first conveying hose is arranged on each clamping block, a second conveying hose is arranged on one side of the auxiliary clamping device, auxiliary fixing can be conducted between two teeth of a gear blank or on the upper side and the lower side of the gear blank at the same time through the auxiliary clamping device, and therefore the clamping force of the clamping blocks on the gear blank is reduced; and teeth on the gear blank are prevented from being damaged due to overlarge clamping force of the clamping blocks.

Description

Technical Field

[0001] The invention relates to the technical field of gear processing, and in particular to a gear blank fixing device for gear processing. Background Art

[0002] Gear processing is an important part of mechanical manufacturing, which aims to form a gear structure to achieve power transmission. There are many types of gears, including cylindrical gears, bevel gears, ring gears and special-purpose gears. Each gear is designed and manufactured according to its application scenario and needs. In order to ensure the quality of gear transmission, a fixing device is needed to fix the gear blank during the processing to prevent the gear blank from moving unexpectedly during the processing and causing processing errors.

[0003] For example, the Chinese patent disclosure: A fixing device for gear processing and production, application number: CN202020181407.X, includes a workbench. The fixing device for gear processing and production places the gear blank to be processed on the workbench, and then controls the motors on the fixed plates on both sides to rotate, so that the threaded rod rotates, and the threaded rod is threadedly connected to the threaded groove in the push block, which can drive the push block to move left and right, so that the push blocks on both sides move toward the middle until the rubber pads in the clamping groove clamp the gear blank. At this time, the gear is placed horizontally, and the top can be punched or polished. After the drilling is completed, the gear is placed vertically in the arc groove on the placement table, and then the electric push rods on the vertical plates on both sides are controlled to drive the movable rod to move, so that the clamping plate clamps the gear. At this time, the edge of the gear can be polished. The entire device can fix the gear in different fixing methods to adapt to different processing, achieving the purpose of high practicality.

[0004] However, in the above technical solutions, two methods are mostly used to fix the gear blank, one is internal support and the other is external clamping. When processing the outer side of the gear blank, internal support is required, and when processing the center of the gear blank, external clamping is required. During the processing of the gear blank, after the teeth are processed on the outside of the gear blank, the gear blank needs to be fixed by external clamping, and then the center of the gear blank needs to be further processed (such as drilling matching holes) according to the situation of the teeth on the outside of the gear blank. When the gear blank is fixed by external clamping, in order to effectively prevent the gear blank from accidentally moving during the processing, the fixing device needs to clamp the teeth of the gear blank with great force. Therefore, the teeth of the gear blank can be easily damaged due to excessive clamping force, resulting in the scrapping of the gear blank. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a gear blank fixing device for gear processing, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a gear processing gear blank fixing device, comprising a base, a plurality of support plates are fixedly arranged on the base, a hydraulic rod is fixedly installed on the support plate, a push plate is fixedly arranged on the hydraulic rod, two clamping blocks are fixedly arranged on the push plate, an auxiliary clamp is arranged between the two clamping blocks, a first conveying hose is arranged on the clamping block, and a second conveying hose is arranged on one side of the auxiliary clamp.

[0007] Preferably, the auxiliary clamp is fixedly mounted on the push plate.

[0008] Preferably, the clamping block includes a clamping block base, a first slide groove is provided on the clamping block base, a clamping block is slidably provided on the first slide groove, a plurality of guide slide grooves are provided on one side of the clamping block, a T-shaped guide slider is slidably provided in the guide slide groove, a plurality of ball bearings are provided on the T-shaped guide slider, a sliding column is fixedly provided on the clamping block, and a first hydraulic expansion sleeve is provided on the sliding column.

[0009] Preferably, the T-shaped guide slider is fixedly connected to the clamping block base, and the first hydraulic expansion sleeve is fixedly mounted on the clamping block base.

[0010] Preferably, the auxiliary clamp includes an auxiliary clamp base, a cover plate is provided on the side of the auxiliary clamp base away from the push plate, a plurality of second sliding grooves are provided on the auxiliary clamp base, a push rod is slidably provided in the second sliding groove, a spring is fixedly provided on one side of the push rod, a first groove is provided on the second sliding groove, and a clamping assembly is provided in the first groove.

[0011] Preferably, a first infusion trough is provided on one side of the first groove, a third delivery hose is provided on one side of the first infusion trough, a second infusion trough is provided on one side of the auxiliary clamp base, two third infusion troughs are provided on the second infusion trough, and a plurality of connecting bolts are threadedly provided on the cover plate.

[0012] Preferably, the cover plate is fixedly connected to the auxiliary clamp base by connecting bolts, the second slide groove passes through the cover plate, the spring is fixedly connected to the auxiliary clamp base, the two different first infusion tanks are connected by a third delivery hose, and the second infusion tank is connected to the second delivery hose.

[0013] Preferably, the second infusion tank is connected to any first infusion tank, and both ends of the first delivery hose are connected to the first hydraulic expansion sleeve and the third infusion tank respectively.

[0014] Preferably, the clamping assembly is provided with a second hydraulic expansion sleeve in the first groove, the outer wall of the second hydraulic expansion sleeve on the side close to the push rod is provided with a friction increasing pattern, the second hydraulic expansion sleeve is provided with an oil chamber, the oil chamber is provided with two sealing rings on the side away from the friction increasing pattern, a second groove is provided on one side of the sealing ring, a flexible oil guide plate is provided in the second groove, and an annular oil inlet is provided between the two sealing rings.

[0015] Preferably, the flexible oil guide plate is fixedly connected to the second hydraulic expansion sleeve, and the annular oil inlet is communicated with the oil chamber.

[0016] The present invention provides a gear blank fixing device for gear processing, which has the following beneficial effects:

[0017] The present invention first places the gear blank on a base, and then uses a hydraulic rod to move a push plate toward the gear blank. The push plate drives the clamping block and the auxiliary clamp to move, so that the clamping block and the auxiliary clamp fit the outer wall of the gear blank. The clamping block and the auxiliary clamp adjust their own positions and shapes according to the size and shape of the gear blank during squeezing. After the adjustment is completed, pressure oil is sent into the auxiliary clamp through a second delivery hose to fix certain components in the auxiliary clamp. Then, the auxiliary clamp sends pressure oil into the clamping block through the first delivery hose to fix certain components in the clamping block, thereby clamping and fixing the gear blank through the clamping block. At the same time, the auxiliary clamp is used to assist in fixing between two teeth of the gear blank or on the upper and lower sides of the gear blank at the same time, thereby reducing the clamping force of the clamping block on the gear blank, and preventing the teeth on the gear blank from being damaged due to excessive clamping force of the clamping block.

[0018] During the fixing period, the gear blank squeezes the clamp block, causing the clamp block to move along the track of the T-shaped guide slider, thereby automatically adjusting the position of the clamp block according to the size and shape of the gear blank, thereby expanding the scope of application.

[0019] Among them, several push rods are squeezed to different degrees through different outer wall surfaces of the gear embryo, and at the same time, the push rods are always fitted with the outer wall of the gear embryo through the elastic force of the spring, so that by squeezing the push rods, several push rods can automatically change their positions according to the size and shape between the two teeth of the gear embryo, thereby expanding the scope of application. When the clamping assembly is damaged due to long-term use and needs to be replaced, the connecting bolt is turned to release the fixed connection between the cover plate and the auxiliary clamp base, and then the cover plate is separated from the auxiliary clamp base, so that the clamping assembly can be replaced, which is convenient for the staff to replace the clamping assembly.

[0020] When the push rod needs to be fixed by the second hydraulic expansion sleeve, the pressure oil in the first infusion groove is first allowed to enter the oil chamber through the annular oil inlet, and then the second hydraulic expansion sleeve is expanded by the gradually increasing pressure oil, the push rod is squeezed and fixed by the second hydraulic expansion sleeve, and the friction-increasing groove is used to enhance the fixing effect of the push rod. At the same time, the sealing ring is squeezed by the expanded second hydraulic expansion sleeve, thereby enhancing the sealing effect of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0023] Figure 3 It is a front view structural schematic diagram of the clamping block in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the clamping block in the present invention;

[0025] Figure 5 It is a structural schematic diagram of the auxiliary clamp in the present invention;

[0026] Figure 6 Schematic diagram of the internal structure of the auxiliary clamp in the present invention;

[0027] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at B;

[0028] Figure 8 It is a schematic diagram of the structure of the clamping assembly in the present invention.

[0029] Among them, 1, base; 2, support plate; 3, hydraulic rod; 4, push plate; 5, clamping block; 501, clamping block base; 502, first slide groove; 503, clamping block; 504, guide slide groove; 505, T-shaped guide slider; 506, ball bearing; 507, slide column; 508, first hydraulic expansion sleeve; 6, auxiliary clamp; 601, auxiliary clamp base; 602, cover plate; 603, second slide groove; 604, push rod; 605, spring; 606, first groove; 607, clamping assembly; 60701, second hydraulic expansion sleeve; 60702, friction increasing groove; 60703, oil chamber; 60704, sealing ring; 60705, second groove; 60706, flexible oil guide plate; 60707, annular oil inlet; 608, first infusion trough; 609, second infusion trough; 6010, third infusion trough; 6011, third delivery hose; 6012, connecting bolt; 7, first delivery hose; 8, second delivery hose. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a gear processing gear blank fixing device, including a base 1, a plurality of support plates 2 are fixedly arranged on the base 1, a hydraulic rod 3 is fixedly installed on the support plate 2, a push plate 4 is fixedly arranged on the hydraulic rod 3, two clamping blocks 5 are fixedly arranged on the push plate 4, an auxiliary clamp 6 is arranged between the two clamping blocks 5, a first conveying hose 7 is arranged on the clamping block 5, and a second conveying hose 8 is arranged on one side of the auxiliary clamp 6.

[0032] like Figure 3 and Figure 4 As shown, the clamping block 5 includes a clamping block base 501, a first slide groove 502 is arranged on the clamping block base 501, a clamping block 503 is slidably arranged on the first slide groove 502, a plurality of guide slide grooves 504 are arranged on one side of the clamping block 503, a T-shaped guide slider 505 is slidably arranged in the guide slide groove 504, a plurality of balls 506 are arranged on the T-shaped guide slider 505, a sliding column 507 is fixedly arranged on the clamping block 503, and a first hydraulic expansion sleeve 508 is arranged on the sliding column 507.

[0033] Through the above technical scheme, when the gear blank needs to be clamped and fixed, first the clamping block 5 is moved closer to the gear blank by the push plate 4, so that the inclined surface of the clamping block 503 contacts the gear blank, and then the push plate 4 continues to move, and the auxiliary clamp 6 is used to fix the two teeth of the gear blank. During the fixation period, the gear blank squeezes the clamping block 503, so that the clamping block 503 moves along the trajectory of the T-shaped guide slider 505, and the slide column 507 moves with the clamping block 503, so that the position of the clamping block 503 is automatically adjusted according to the size and shape of the gear blank, thereby expanding the scope of application, and the ball 506 is responsible for reducing the friction generated when the clamping block 503 moves, so as to facilitate the movement of the clamping block 503. When the position of the clamping block 503 is moved, the pressure oil is injected into the first hydraulic expansion sleeve 508 through the first delivery hose 7, and the slide column 507 is squeezed and fixed by the first hydraulic expansion sleeve 508, and then the position of the clamping block 503 is fixed by the slide column 507, and then the gear blank can be clamped and fixed by the clamping block 503.

[0034] like Figures 5 to 7As shown, the auxiliary clamp 6 includes an auxiliary clamp base 601, a cover plate 602 is provided on the side of the auxiliary clamp base 601 away from the push plate 4, a plurality of second slide grooves 603 are provided on the auxiliary clamp base 601, a push rod 604 is slidably provided in the second slide groove 603, a spring 605 is fixedly provided on one side of the push rod 604, a first groove 606 is provided on the second slide groove 603, and a clamping assembly 607 is provided in the first groove 606;

[0035] A first infusion groove 608 is arranged on one side of the first groove 606, a third delivery hose 6011 is arranged on one side of the first infusion groove 608, a second infusion groove 609 is arranged on one side of the auxiliary clamp base 601, two third infusion grooves 6010 are arranged on the second infusion groove 609, and a plurality of connecting bolts 6012 are threadedly arranged on the cover plate 602.

[0036] Through the above technical scheme, when it is necessary to use the auxiliary clamp 6 to assist in fixing the space between the two teeth of the gear embryo or the upper and lower sides of the gear embryo at the same time, first make the auxiliary clamp 6 close to the space between the two teeth of the gear embryo, and then when the push rod 604 contacts the gear embryo, the push rods 604 are squeezed to different degrees through the different outer wall surfaces of the gear embryo, and at the same time, the push rods 604 are always in contact with the outer wall of the gear embryo through the elastic force of the spring 605, so that the push rods 604 can automatically change their positions according to the size and shape between the two teeth of the gear embryo by squeezing the push rods 604, thereby expanding the scope of application. After the position of the push rod 604 is changed, the pressure oil is injected into the second infusion groove 609 through the second delivery hose 8, and the pressure oil is input into the two third infusion grooves 6010 and a first infusion groove 608 through the second infusion groove 609, and the pressure oil is input into the first delivery hose 7 through the third infusion groove 6010, so that the sliding column 507 is fixed by the first hydraulic expansion sleeve 508;

[0037] The first infusion tank 608 inputs the pressure oil into the clamping assembly 607, and the push rod 604 is squeezed and fixed through the clamping assembly 607. At the same time, the pressure oil is input into other first infusion tanks 608 through the third delivery hose 6011, and then the above steps are repeated to fix all the push rods 604. The push rod 604 is used to auxiliary fix the space between two teeth of the gear embryo or the upper and lower sides of the gear embryo at the same time to prevent the gear embryo from accidentally rotating or moving up and down, thereby reducing the clamping force of the clamping block 5 on the gear embryo, and preventing the teeth on the gear embryo from being damaged due to excessive clamping force of the clamping block 5;

[0038] When the clamping assembly 607 is damaged due to long-term use and needs to be replaced, the connecting bolt 6012 is rotated to release the fixed connection between the cover plate 602 and the auxiliary clamp base 601, and then the cover plate 602 is separated from the auxiliary clamp base 601, and the clamping assembly 607 can be replaced, which is convenient for the staff to replace the clamping assembly 607.

[0039] like Figure 8 As shown, the clamping assembly 607 is provided with a second hydraulic expansion sleeve 60701 in the first groove 606, and the outer wall of the second hydraulic expansion sleeve 60701 on the side close to the push rod 604 is provided with a friction increasing pattern 60702, and the second hydraulic expansion sleeve 60701 is provided with an oil chamber 60703, and the oil chamber 60703 is provided with two sealing rings 60704 on the side away from the friction increasing pattern 60702, and a second groove 60705 is provided on one side of the sealing ring 60704, and a flexible oil guide plate 60706 is provided in the second groove 60705, and an annular oil inlet 60707 is provided between the two sealing rings 60704.

[0040] Through the above technical solution, when it is necessary to fix the push rod 604 through the second hydraulic expansion sleeve 60701, the pressure oil in the first infusion groove 608 is first allowed to enter the oil chamber 60703 through the annular oil inlet 60707, and then the second hydraulic expansion sleeve 60701 is expanded by the gradually increasing pressure oil, and the push rod 604 is squeezed and fixed by the second hydraulic expansion sleeve 60701, and the friction groove 60702 is used to enhance the fixing effect of the push rod 604, and at the same time, the sealing ring 60704 is squeezed by the expanded second hydraulic expansion sleeve 60701, thereby enhancing the sealing effect of the sealing ring 60704.

[0041] Working principle:

[0042] The present invention first places the gear blank on the base 1, and then uses the hydraulic rod 3 to make the push plate 4 approach the gear blank. The push plate 4 drives the clamping block 5 and the auxiliary clamp 6 to move, so that the clamping block 5 and the auxiliary clamp 6 are fitted with the outer wall of the gear blank. The clamping block 5 and the auxiliary clamp 6 adjust their own positions and shapes according to the size and shape of the gear blank during squeezing. After the adjustment is completed, the pressure oil is sent into the auxiliary clamp 6 through the second delivery hose 8 to fix some parts in the auxiliary clamp 6. Then the auxiliary clamp 6 sends the pressure oil into the clamping block 5 through the first delivery hose 7 to fix some parts in the clamping block 5, so that the gear blank is clamped and fixed by the clamping block 5. At the same time, the auxiliary clamp 6 is used to auxiliary fix the two teeth of the gear blank or the upper and lower sides of the gear blank at the same time, thereby reducing the clamping force of the clamping block 5 on the gear blank, and preventing the teeth on the gear blank from being damaged due to excessive clamping force of the clamping block 5.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A gear processing gear blank fixing device, comprising a base (1), characterized in that: A plurality of support plates (2) are fixedly arranged on the base (1), a hydraulic rod (3) is fixedly installed on the support plate (2), a push plate (4) is fixedly arranged on the hydraulic rod (3), two clamping blocks (5) are fixedly arranged on the push plate (4), an auxiliary clamp (6) is arranged between the two clamping blocks (5), a first conveying hose (7) is arranged on the clamping block (5), and a second conveying hose (8) is arranged on one side of the auxiliary clamp (6).

2. A gear blank fixing device for gear machining according to claim 1, characterized in that: The auxiliary clamp (6) is fixedly mounted on the push plate (4).

3. A gear blank fixing device for gear machining according to claim 2, characterized in that: The clamping block (5) comprises a clamping block base (501), a first slide groove (502) is arranged on the clamping block base (501), a clamping block (503) is slidably arranged on the first slide groove (502), a plurality of guide slide grooves (504) are arranged on one side of the clamping block (503), a T-shaped guide slider (505) is slidably arranged in the guide slide groove (504), a plurality of balls (506) are arranged on the T-shaped guide slider (505), a slide column (507) is fixedly arranged on the clamping block (503), and a first hydraulic expansion sleeve (508) is arranged on the slide column (507).

4. A gear blank fixing device for gear machining according to claim 3, characterized in that: The T-shaped guide slide block (505) is fixedly connected to the clamping block base (501), and the first hydraulic expansion sleeve (508) is fixedly installed on the clamping block base (501).

5. A gear blank fixing device for gear machining according to claim 4, characterized in that: The auxiliary clamp (6) includes an auxiliary clamp base (601), a cover plate (602) is provided on the side of the auxiliary clamp base (601) away from the push plate (4), a plurality of second slide grooves (603) are provided on the auxiliary clamp base (601), a push rod (604) is slidably provided in the second slide groove (603), a spring (605) is fixedly provided on one side of the push rod (604), a first groove (606) is provided on the second slide groove (603), and a clamping assembly (607) is provided in the first groove (606).

6. The gear blank fixing device for gear machining according to claim 5, characterized in that: A first infusion groove (608) is arranged on one side of the first groove (606), a third delivery hose (6011) is arranged on one side of the first infusion groove (608), a second infusion groove (609) is arranged on one side of the auxiliary clamp base (601), two third infusion grooves (6010) are arranged on the second infusion groove (609), and a plurality of connecting bolts (6012) are threadedly arranged on the cover plate (602).

7. The gear blank fixing device for gear machining according to claim 6, characterized in that: The cover plate (602) is fixedly connected to the auxiliary clamp base (601) via a connecting bolt (6012); the second slide groove (603) passes through the cover plate (602); the spring (605) is fixedly connected to the auxiliary clamp base (601); two different first infusion tanks (608) are connected via a third delivery hose (6011); and the second infusion tank (609) is connected to the second delivery hose (8).

8. The gear blank fixing device for gear machining according to claim 7, characterized in that: The second infusion tank (609) is connected to any one of the first infusion tanks (608), and the two ends of the first delivery hose (7) are respectively connected to the first hydraulic expansion sleeve (508) and the third infusion tank (6010).

9. The gear blank fixing device for gear machining according to claim 8, characterized in that: The clamping assembly (607) is provided with a second hydraulic expansion sleeve (60701) in the first groove (606); the outer wall of the second hydraulic expansion sleeve (60701) close to the push rod (604) is provided with a friction-increasing pattern (60702); an oil chamber (60703) is provided on the second hydraulic expansion sleeve (60701); two sealing rings (60704) are provided on the side of the oil chamber (60703) away from the friction-increasing pattern (60702); a second groove (60705) is provided on one side of the sealing ring (60704); a flexible oil guide plate (60706) is provided in the second groove (60705); and an annular oil inlet (60707) is provided between the two sealing rings (60704).

10. A gear blank fixing device for gear machining according to claim 9, characterized in that: The flexible oil guide plate (60706) is fixedly connected to the second hydraulic expansion sleeve (60701), and the annular oil inlet (60707) is communicated with the oil chamber (60703).

Images