A tooling fixture for inner hole rolling

Abstract

The present invention relates to the technical field of inner hole processing, and provides a tooling fixture for inner hole rolling, which comprises: a main body, on which is a main shaft for inner hole processing; a bearing assembly is installed on the main body, the bearing assembly is rotatable, and is used to carry a workpiece; a clamping assembly is installed on the main body, the clamping assembly rotates with the bearing assembly, and the clamping assembly can be opened or pressed down relative to the bearing assembly to clamp the workpiece; a supporting assembly is respectively installed on the bearing assembly and the clamping assembly to support the workpiece; a positioning assembly is used to keep the processing hole on the workpiece coaxial with the main shaft; before clamping the workpiece, the positioning assembly positions and adjusts the inner hole of the workpiece to prevent the workpiece from shifting during clamping, which causes damage to the workpiece during rolling; and while the clamping assembly is clamping, the inner hole of the workpiece is located at the supporting assembly, and the supporting assembly supports the inner hole of the workpiece to prevent the inner hole of the workpiece from deforming during processing.

Description

Technical Field

[0001] The invention relates to the technical field of inner hole processing, and in particular to a tooling fixture for inner hole rolling. Background Art

[0002] When processing the inner holes of some precision devices, the requirements for the inner holes are relatively high, not only to ensure its accuracy but also to ensure its smoothness. Among them, the inner hole processing of battery thin plates is more prominent.

[0003] In order to improve the finish better, the existing method is to use rolling to achieve it, but for some thinner plates, the rolling method will cause the inner hole of the workpiece to deform, resulting in damage to the processed product. Summary of the invention

[0004] In view of the disadvantage of inner hole deformation in the prior art, the present invention aims to provide a tooling fixture for inner hole rolling that can prevent deformation.

[0005] To solve the above problems, the present invention provides the following technical solutions:

[0006] A tooling fixture for inner hole rolling comprises: a main body, on which is a main shaft for inner hole processing;

[0007] A bearing assembly is mounted on the main body, the bearing assembly is rotatable and used for bearing a workpiece;

[0008] A clamping assembly is installed on the main body, the clamping assembly rotates with the bearing assembly, and the clamping assembly can be opened or pressed down relative to the bearing assembly to clamp the workpiece;

[0009] A support assembly, respectively mounted on the bearing assembly and the pressing assembly, for supporting a workpiece;

[0010] A positioning assembly is used to keep the processing hole on the workpiece coaxial with the spindle;

[0011] When the bearing assembly rotates to the lower side of the spindle, the clamping assembly presses down the workpiece, and the processing hole remains coaxial with the spindle; when the bearing assembly is rotated out of the spindle, the clamping assembly opens and the workpiece can be taken out.

[0012] In some embodiments, the support assembly includes a first ring and a second ring;

[0013] The first ring is mounted on the bearing assembly;

[0014] The second ring is mounted on the clamping assembly;

[0015] When the bearing assembly moves to the lower side of the main shaft, the first circular ring and the second circular ring are respectively located on both sides of the workpiece, and the first circular ring, the second circular ring and the processed hole are coaxial with the main shaft.

[0016] In some embodiments, a first permanent magnet is mounted on the first ring;

[0017] A first iron sheet is installed on the bearing component; the first ring is installed on the bearing component via the first permanent magnet and the first iron sheet.

[0018] In some embodiments, a second permanent magnet is mounted on the second ring;

[0019] A second iron sheet is installed on the clamping assembly; the second ring is installed on the clamping assembly via the second permanent magnet and the second iron sheet.

[0020] In some embodiments, the bearing assembly includes a support member, a carrier plate, a rolling member, and a first clearance hole provided on the carrier plate;

[0021] The rolling member is mounted on the supporting member, and is used for the supporting member to move relative to the main body;

[0022] The carrier plate is fixedly mounted on the support member, and the workpiece is placed on the carrier plate;

[0023] The first relief hole is coaxial with the first circular ring.

[0024] In some embodiments, the clamping assembly includes a pressing plate and a second clearance hole provided on the pressing plate;

[0025] The second clearance hole is coaxial with the second circular ring.

[0026] In some embodiments, the inner hole machining rolling device further includes a rotating shaft and a mounting block;

[0027] The rotating shaft is installed on the main body, and the rotating shaft is driven by a forward and reverse motor;

[0028] The bearing assembly is fixedly mounted on the rotating shaft;

[0029] The mounting block is sleeved on the rotating shaft and rotates with the rotating shaft, and the mounting block is hinged to the clamping assembly;

[0030] When the rotating shaft drives the bearing assembly and the clamping assembly to rotate toward the main shaft, the clamping assembly swings toward the bearing assembly; when the rotating shaft drives the bearing assembly and the clamping assembly to rotate away from the main shaft, the clamping assembly swings away from the bearing assembly.

[0031] In some embodiments, the inner hole processing rolling device further includes an adjusting component; the adjusting component is mounted on the rotating shaft; the adjusting component is used to adjust the position of the mounting block on the rotating shaft, thereby adjusting the height of the pressing block;

[0032] The adjusting assembly includes a push rod, a nut and a first clearance groove provided on the rotating shaft;

[0033] The nut is rotatably mounted on the rotating shaft;

[0034] The push rod is placed in the first clearance groove, and the push rod is respectively clamped on both sides of the nut and the mounting block, and the rotating shaft drives the mounting block to move through the push rod.

[0035] In some embodiments, the positioning assembly includes a round rod, a spring, a top block, and a second clearance groove provided on the support member;

[0036] The round rod is installed in the support member, the round rod is coaxial with the first clearance hole, and the upper end of the round rod is conical;

[0037] The spring is sleeved on the round rod, and the spring gives the round rod a force to move downward;

[0038] The top block is arranged on the main body, and the top block can push the round rod to move upward;

[0039] When the rotating shaft drives the support member to move away from the main shaft, the top block moves the round rod upward through the second clearance groove, and the upper end of the round rod moves to the upper side of the carrier plate; when the rotating shaft drives the support member to move toward the main shaft, the round rod is separated from the top block, and the spring moves the round rod into the support member.

[0040] In some embodiments, the inner hole machining rolling device further includes an electric cylinder and a clamping plate;

[0041] The electric cylinder is mounted on the main body, and the clamping plate is mounted on the piston rod of the electric cylinder. The electric cylinder can drive the clamping plate to move away from and contact the clamping plate.

[0042] When the rotating shaft drives the pressure plate to move toward the main shaft, the electric cylinder drives the pressure plate to swing toward the load-bearing component and be fixed; when the rotating shaft drives the pressure plate to move away from the main shaft, the electric cylinder drives the pressure plate to move away from the pressure plate, and the pressure plate swings away from the load-bearing component.

[0043] The beneficial effects of the present invention are as follows: before clamping the workpiece, the positioning component performs positioning adjustment on the inner hole of the workpiece to prevent the workpiece from shifting during clamping, which may cause damage to the workpiece during rolling; and while the clamping component is clamping, the inner hole of the workpiece is located at the supporting component, and the supporting component supports the inner hole of the workpiece to prevent the inner hole of the workpiece from deforming during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a three-dimensional diagram of the machine tool of the present invention;

[0045] Figure 2 An exploded view of the present invention with the main body removed;

[0046] Figure 3 A three-dimensional diagram of the present invention with the main body removed;

[0047] Figure 4 It is a front cross-sectional view of the present invention;

[0048] Figure 5 This is the explosion diagram of the present invention;

[0049] Figure 6 This is an enlarged view of point A of the present invention;

[0050] Figure 7 is a three-dimensional diagram of the load-bearing assembly of the present invention;

[0051] Figure 8 A perspective view of the clamping assembly opened for the present invention.

[0052] Reference numerals:

[0053] 110, main body; 120, bearing assembly; 130, clamping assembly; 140, supporting assembly; 150, positioning assembly; 160, main shaft;

[0054] 121, support member; 122, carrier plate; 123, rolling member; 124, first clearance hole;

[0055] 131, pressing plate; 132, second clearance hole;

[0056] 141, first circular ring; 142, second circular ring; 41a, first permanent magnet; 41b, first patch; 42a, second permanent magnet; 42b, second iron sheet; 143, first blind hole; 144, second blind hole; 145, third blind hole; 146, fourth blind hole; 147, first annular groove; 148, second annular groove;

[0057] 151, round rod; 152, spring; 153, top block; 154, second clearance groove;

[0058] 210, rotating shaft; 220, mounting block; 230, forward and reverse motor; 240, adjusting assembly; 250, electric cylinder; 260, clamping plate; 270, fixing block; 280, processing platform;

[0059] 241. Push rod; 242. Nut; 243. First clearance groove. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] For the convenience of describing the first direction, the second direction and the third direction in the embodiment of the present application, the first direction is the left-right direction in the drawings, the second direction is the front-back direction in the drawings, and the third direction is the up-down direction in the drawings. The x-axis arrow direction is referred to as the "right" direction in the following text, the y-axis arrow direction is referred to as the "up" direction in the following text, and the z-axis arrow direction is referred to as the "back" direction in the following text, which is not limited to the actual application of the present application.

[0063] like Figure 1-2As shown, this embodiment provides a tooling fixture for inner hole rolling, which includes a main body 110 , a bearing assembly 120 , a clamping assembly 130 , a supporting assembly 140 and a positioning assembly 150 . A spindle 160 for inner hole processing is provided on the main body 110; the bearing assembly 120 is installed on the main body 110, and the bearing assembly 120 is rotatable and used to carry the workpiece; the clamping assembly 130 is installed on the main body 110, and the clamping assembly 130 rotates with the bearing assembly 120, and the clamping assembly 130 can be opened or pressed down relative to the bearing assembly 120 to clamp the workpiece; the supporting assembly 140 is installed on the bearing assembly 120 and the clamping assembly 130 to support the workpiece; the positioning assembly 150 is used to keep the processing hole on the workpiece coaxial with the spindle 160; wherein, when the bearing assembly 120 rotates to the lower side of the spindle 160, the clamping assembly 130 presses down the workpiece, and at this time the processing hole and the spindle 160 remain coaxial; when the bearing assembly 120 is screwed out of the spindle 160, the clamping assembly 130 is opened, and the workpiece can be taken out. That is to say, when the inner hole of the workpiece is processed to achieve a smooth finish, the rolling tool is installed on the main shaft 160, the workpiece is placed on the supporting assembly 120, and is clamped by the clamping assembly 130 to prevent the workpiece from moving; before clamping the workpiece, the positioning assembly 150 is used to adjust the positioning of the inner hole of the workpiece to prevent the workpiece from shifting during clamping, which may cause damage to the workpiece during rolling; while the clamping assembly 130 is clamping, the processing hole of the workpiece is located at the supporting assembly 140, and the supporting assembly 140 supports the inner hole of the workpiece to prevent the inner hole of the workpiece from deforming during processing.

[0064] like Figure 2 As shown, in this embodiment, the support assembly 140 includes a first ring 141 and a second ring 142. The first ring 141 is installed on the bearing assembly 120; the second ring 142 is installed on the clamping assembly 130. When the bearing assembly 120 is moved to the lower side of the spindle 160, the first ring 141 and the second ring 142 are respectively located on both sides of the workpiece, and the first ring 141, the second ring 142 and the processing hole are coaxial with the spindle 160. The use of a ring-shaped structure in which the processing components are the first ring 141 and the second ring 142, when the workpiece is placed between the two rings, the rings can support the periphery of the inner hole of the workpiece, and at the same time, the rings do not hinder the processing of the inner hole of the workpiece.

[0065] like Figure 2 , Figure 4 and Figure 5As shown, in the present embodiment, a first blind hole 143 is provided on the end face of the bearing component 120, and the first ring 141 is placed in the first blind hole 143; a second blind hole 144 is provided on the end face of the clamping component 130, and the second ring 142 is placed in the second blind hole 144; the first ring 141 is placed in the first blind hole 143 so that the ring is flush with the end face of the bearing component 120, and the second ring 142 is placed in the second blind hole 144 so that the ring is flush with the end face of the clamping component 130, thereby preventing the problem of deformation of the workpiece caused by the unevenness of the first ring 141 and the bearing component 120 or the second ring 142 and the clamping component 130.

[0066] like Figure 2-5 As shown, in the present embodiment, a first permanent magnet 41a is mounted on the first ring 141; a first iron sheet 41b is mounted on the bearing assembly 120; the first iron sheet 41b is annular, and the first ring 141 is mounted on the bearing assembly 120 via the first permanent magnet and the first iron sheet 41b; the inner diameter of the side of the first ring 141 in contact with the workpiece is smaller than the inner diameter of the side away from the workpiece, and the first permanent magnet 41a and the first iron sheet 41b are used to prevent the first ring 141 from being easily separated from or moved by the bearing assembly 120; and the inner diameter of the side of the first ring 141 in contact with the workpiece is smaller than the inner diameter of the side away from the workpiece, so that the workpiece can be supported while also playing a role of giving way.

[0067] like Figure 2-5 As shown, in this embodiment, a second permanent magnet 42a is mounted on the second ring 142; a second iron sheet 42b is mounted on the clamping assembly 130; the second iron sheet 42b is annular, and the second ring 121 is mounted on the clamping assembly 130 via the second permanent magnet and the second iron sheet 42b; the inner diameter of the second ring 142 is the same as the inner diameter of the side of the first ring 141 that contacts the workpiece. The second permanent magnet 42a and the second iron sheet 42b prevent the second ring 142 from being easily separated from the clamping assembly 130, and can effectively prevent the second ring 142 from being always fixed to the clamping assembly 130 when the clamping assembly 130 moves.

[0068] In this embodiment, a third blind hole 145 is provided on the end face of the first circular ring 141, and the first permanent magnet 41a is installed in the third blind hole 145; a first annular groove 147 is provided at the bottom of the first blind hole 143, and the first iron sheet is installed in the first annular groove 147; a fourth blind hole 146 is provided on the end face of the second circular ring, and the second permanent magnet is installed in the fourth blind hole 146; a second annular groove 148 is provided at the bottom of the second blind hole 144, and the second iron sheet is placed in the second annular groove 148; placing the permanent magnet in the blind hole on the circular ring and the iron sheet in the annular groove can prevent the permanent magnet and the iron sheet from protruding and affecting the stability of the circular ring.

[0069] In this embodiment, the sides of the first blind hole 143 and the second blind hole 144 are provided with clearance grooves, which facilitate the removal and installation of the first circular ring 141 and the second circular ring 142; and when replacing the first circular ring 141 and the second circular ring 142, the outer diameter of the circular ring remains unchanged, and only the inner diameter of the circular ring changes with the change of the inner hole diameter of the workpiece.

[0070] In this embodiment, when processing the inner diameter of the workpiece, in order to provide good support for the workpiece and prevent it from being deformed, the following regulations need to be followed when selecting the ring: when the inner hole diameter of the workpiece is within 15 mm, the inner hole of the workpiece is taken as d, and the inner diameter of the connection between the ring and the workpiece should be (d+0.5mm, d+1mm); when the inner hole diameter of the workpiece is greater than 15 mm, the inner hole of the workpiece is taken as d, and the inner diameter of the connection between the ring and the workpiece should be (d+0.5mm, d+1.5mm). The above settings can effectively solve the problem of deformation of the workpiece during processing.

[0071] like Figure 2-6 As shown, in this embodiment, the bearing assembly 120 includes a support member 121, a carrier plate 122, a rolling member 123, and a first clearance hole 124 provided on the carrier plate 122. The rolling member 123 is mounted on the support member 121 for rotating relative to the main body 110; the carrier plate 122 is fixedly mounted on the support member 121, and the workpiece is placed on the carrier plate 122; the first clearance hole 124 is coaxial with the first ring 141. In other words, the rolling member 123 is mounted on the support member 121 and contacts the main body 110. When the support member 121 rotates relative to the support member 121, the friction between the support member 121 and the main body 110 is reduced, thereby reducing wear and ensuring the processing accuracy during processing. At the same time, the rolling member 123 can also play a supporting effect during processing; the first clearance hole 124 is used to play a clearance effect in the processing of the inner hole of the workpiece.

[0072] like Figure 2 , Figure 3 and Figure 8 As shown, in this embodiment, the clamping assembly 130 includes a pressing plate 131 and a second clearance hole 132 provided on the pressing plate 131. The second clearance hole 132 is coaxial with the second ring 142. The provision of the second clearance hole 132 can ensure that when the inner hole of the workpiece is processed, the rolling tool can move normally toward the inner hole of the workpiece.

[0073] like Figure 2-6As shown, in this embodiment, the tooling fixture for inner hole rolling also includes a rotating shaft 210 and a mounting block 220; the rotating shaft 210 is installed on the main body 110, and the rotating shaft 210 is driven by the forward and reverse motor 230; the bearing assembly 120 is fixedly installed with the rotating shaft 210; the mounting block 220 is sleeved on the rotating shaft 210 and rotates with the rotating shaft 210, and the mounting block 220 is hinged with the clamping assembly 130; when the rotating shaft 210 drives the bearing assembly 120 and the clamping assembly 130 to rotate toward the main shaft 160, the clamping assembly 130 swings toward the bearing assembly 120, and when the rotating shaft 210 drives the bearing assembly 120 and the clamping assembly 130 to rotate away from the main shaft 160, the clamping assembly 130 swings away from the bearing assembly 120. That is to say, when the rotating shaft 210 is driven by the forward and reverse motor 230, the rotating shaft 210 can drive the supporting component 120 and the clamping component 130 to rotate toward the main shaft 160 or rotate out of the main shaft 160; when the rotating shaft 210 rotates the supporting component 120 and the clamping component 130 toward the main shaft 160, the clamping component 130 swings toward the supporting component 120, and when the clamping component 130 and the supporting component 120 are rotated to directly below the rotating shaft 210, the clamping component 130 clamps and fixes the workpiece placed on the supporting component 120; when the rotating shaft 210 rotates the supporting component 120 and the clamping component 130 out of the main shaft 160, the clamping component 130 swings in the direction away from the supporting component 120, and after the clamping component 130 swings away from the supporting component 120, it is convenient to take and re-place the workpiece.

[0074] In this embodiment, the mounting block 220 and the rotating shaft 210 are key-connected, so that the mounting block 220 can rotate synchronously with the rotating shaft 210 .

[0075] In this embodiment, a torsion spring is installed at the hinge of the clamping assembly 130 and the mounting block 220. The torsion spring gives the clamping assembly 130 a force to always swing away from the load-bearing assembly 120. After the torsion spring causes the clamping assembly 130 to swing upward, the swing angle is between 50-70 degrees, that is, the angle between the clamping assembly 130 and the horizontal plane is between 50-70 degrees. When the clamping assembly 130 swings away from the load-bearing assembly 120, it is convenient to take and re-place the workpiece.

[0076] like Figure 3-4As shown, in this embodiment, the inner hole rolling fixture further includes an electric cylinder 250 and a clamping plate 260. The electric cylinder 250 is mounted on the main body 110, and the clamping plate 260 is mounted on the piston rod of the electric cylinder 250. The electric cylinder 250 can drive the clamping plate 260 to move away from and contact the pressing plate 131. When the rotating shaft 210 drives the pressing plate 131 to move toward the main shaft 160, the electric cylinder 250 drives the clamping plate 260 to swing toward the bearing assembly 120 and be fixed; when the rotating shaft 210 drives the pressing plate 131 to move away from the main shaft 160, the electric cylinder 250 drives the clamping plate 260 to move away from the pressing plate 131, and the pressing plate 131 swings away from the bearing assembly 120. That is to say, when the inclined pressure plate 131 rotates toward the main shaft 160, the electric cylinder 250 drives the clamping plate 260 to swing the pressure plate 131 toward the workpiece. The pressure plate 131 presses the workpiece to prevent the workpiece from being displaced during rolling due to insufficient clamping force.

[0077] In this embodiment, a fixing block 270 is fixed to one end of the clamping plate 260 away from the electric cylinder 250, and the fixing block 270 is located on the side close to the clamping plate 131; the clamping plate 131 is squeezed by the fixing block 270, so that the clamping position can be closer to the middle of the clamping plate 131, thereby achieving a better clamping effect.

[0078] like Figure 2-4 As shown, in this embodiment, the inner hole rolling fixture further includes an adjustment component 240; the adjustment component 240 is installed on the rotating shaft 210; the adjustment component 240 is used to adjust the height of the mounting block 220, and then adjust the height of the pressing plate 131. The adjustment component 240 includes a push rod 241, a nut 242, and a first clearance groove 243 provided on the rotating shaft 210; the nut 242 is rotatably installed on the rotating shaft 210, the push rod 241 is placed in the first clearance groove 243, the push rod 241 is respectively clamped on both sides of the nut 242 and the mounting block 220, and the rotating shaft 210 drives the mounting block 220 to move through the push rod 241. That is to say, the nut 242 is installed on the rotating shaft 210 through threaded rotation. When the nut 242 rotates, it moves up and down relative to the rotating shaft 210. Since the push rod 241 is respectively stuck on both sides of the nut 242 and the mounting block 220, the nut 242 pushes the mounting block 220 to move up and down through the push rod 241, and then drives the pressure plate 131 to move up and down, so that the pressure plate 131 can press the workpieces of different thicknesses.

[0079] In this embodiment, the push rod 241 is placed in the first clearance groove 243 and does not protrude from the rotating shaft. A plurality of clamping blocks are fixed on the push rod 241. The clamping blocks are located on the outside of the rotating shaft 210. The clamping blocks are respectively clamped on both sides of the nut 242 and the two sides of the mounting block 220. An external thread is provided on the upper end of the rotating shaft 210. The nut 242 rotates relative to the rotating shaft 210 through the external thread on the rotating shaft. When the nut 242 rotates, the mounting block 220 is driven to move up and down through the clamping blocks and the push rod 241.

[0080] like Figure 2 and Figure 4 As shown, in this embodiment, the positioning assembly 150 includes a round rod 151, a spring 152, a top block 153 and a second clearance groove 154 provided on the support member 121; the round rod 151 is installed on the support member 121, and the round rod 151 is coaxial with the first clearance hole 124, and the upper end of the round rod 151 is conical; the spring 152 is sleeved on the round rod 151, and the spring 152 gives the round rod 151 a downward moving force; the top block 153 is provided on the main body 11 0, the top block 153 can push the round rod 151 to move upward; when the rotating shaft 210 drives the support member 121 to move away from the main shaft 160, the top block 153 moves the round rod 151 upward through the second yielding groove 154, and the upper end of the round rod 151 moves to the upper side of the carrier plate 122; when the rotating shaft 210 drives the support member 121 to move toward the main shaft 160, the round rod 151 is separated from the top block 153, and the spring 152 moves the round rod 151 into the support member 121. That is to say, before the inner hole of the workpiece is rolled, that is, when the workpiece is placed, the top block 153 causes the tapered end of the round rod 151 to move to the upper side of the bearing assembly 120 through the first clearance hole 124 and the first ring 141. Since the inner diameter of the side of the first ring 141 in contact with the workpiece is smaller than the inner diameter of the side away from the workpiece, the first ring 141 will not prevent the tapered end of the round rod 151 from moving to the upper side of the bearing assembly 120, and then the inner hole of the workpiece is sleeved on the end of the round rod 151; then the rotating shaft 210 is rotated, and the rotating shaft 210 drives the bearing assembly 120 to move, and the bearing assembly 120 causes the round rod 151 to disengage from the top block 153, and the round rod 151 is separated from the workpiece under the action of the spring 152. When the bearing assembly 120 moves to the lower side of the main shaft 160, the inner hole of the workpiece is coaxial with the main shaft 160.

[0081] In this embodiment, the inner diameter of the first ring 141 on one side of the workpiece is smaller than the inner diameter of the first ring 141 on the side away from the workpiece; this ensures that when the round rod 151 moves upward, the upper end of the round rod can contact the inner edge of the first ring 141 on the side away from the workpiece, thereby ensuring that the round rod can contact the inner hole of the workpiece.

[0082] In this embodiment, the top block 153 is an arc block, the axis of the arc block is coaxial with the axial direction of the rotating shaft 210, the upper end surface of the arc block close to the main shaft 160 is located on the lower side of the support member 121, and the end away from the main shaft 160 is flush with the bottom of the second clearance groove 154 and does not hinder the rotation of the support member 121; it can ensure that the coaxiality is maintained when the workpiece is installed, and it will not hinder the movement of the rolling tool during rolling processing.

[0083] In this embodiment, the main body 110 is a machine tool, the rotating shaft 210 is installed on the processing platform 280, and the rotating shaft 210 is located on one side of the machine tool spindle 160, ensuring the convenience of taking and placing the workpiece and inner hole processing.

[0084] During the processing, when the workpiece needs to be installed, the forward and reverse motor 230 rotates the bearing assembly 120 and the clamping assembly 130 out of the main shaft 160 through the rotating shaft 210. At this time, the pressing plate 131 is in an upward open state under the action of the torsion spring, and the electric cylinder 250 moves upward and no longer clamps the pressing plate 131. The round rod 151 moves upward to the upper side of the bearing assembly 120 under the action of the top block 153; when the workpiece is placed on the bearing plate 122, and the inner hole of the workpiece is sleeved on the conical end of the round rod 151, the workpiece can be 151 is lifted upward; when it is necessary to move to the main shaft 160, the forward and reverse motor 230 drives the bearing assembly 120 and the clamping assembly 130 to rotate toward the main shaft 160. During the rotation toward the main shaft 160, the round rod 151 gradually disengages from the top block 153, and the workpiece is gradually made coaxial with the clearance hole during the disengagement process. When the round rod 151 is disengaged from the top block 153, the electric cylinder 250 starts to work and makes the pressing plate 131 contact with the workpiece before it moves to the main shaft 160 to prevent the pressing plate 131 from colliding with the main shaft 160.

[0085] In summary, the present invention provides a tooling fixture for inner hole rolling, which first adjusts the positioning of the inner hole of the workpiece by a positioning assembly before clamping the workpiece to prevent the workpiece from shifting during clamping, which may cause damage to the workpiece during rolling; and while the clamping assembly is clamping, the inner hole of the workpiece is located at the supporting assembly, and the supporting assembly supports the inner hole of the workpiece to prevent the inner hole of the workpiece from deforming during processing.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tooling fixture for inner hole rolling, characterized in that: include: A main body, wherein a spindle for inner hole machining is arranged on the main body; A bearing assembly is mounted on the main body, the bearing assembly is rotatable and used for bearing a workpiece; A clamping assembly is installed on the main body, the clamping assembly rotates with the bearing assembly, and the clamping assembly can be opened or pressed down relative to the bearing assembly to clamp the workpiece; A support assembly, respectively mounted on the bearing assembly and the pressing assembly, for supporting a workpiece; The support assembly includes a first circular ring and a second circular ring; the first circular ring is installed on the bearing assembly; the second circular ring is installed on the clamping assembly; the inner diameter of the first circular ring is the same as the inner diameter of the second circular ring; A positioning assembly is used to keep the processing hole on the workpiece coaxial with the spindle; Among them, when the bearing assembly moves to the lower side of the spindle, the first ring and the second ring are respectively located on both sides of the workpiece, and at this time the first ring and the second ring are coaxial with the spindle; when the bearing assembly rotates to the lower side of the spindle, the clamping assembly presses down the workpiece, and the positioning assembly keeps the processing hole coaxial with the spindle; when the bearing assembly is rotated out of the spindle, the clamping assembly opens and the workpiece can be taken out.

2. The inner hole rolling fixture according to claim 1 is characterized in that: A first permanent magnet is mounted on the first circular ring; A first iron sheet is installed on the bearing component; the first ring is installed on the bearing component via the first permanent magnet and the first iron sheet.

3. The inner hole rolling fixture according to claim 1, characterized in that: A second permanent magnet is mounted on the second ring; A second iron sheet is installed on the clamping assembly; the second ring is installed on the clamping assembly via the second permanent magnet and the second iron sheet.

4. The inner hole rolling fixture according to claim 1, characterized in that: The bearing assembly comprises a support member, a carrier plate, a rolling member and a first clearance hole provided on the carrier plate; The rolling member is mounted on the supporting member, and is used for the supporting member to move relative to the main body; The carrier plate is fixedly mounted on the support member, and the workpiece is placed on the carrier plate; The first relief hole is coaxial with the first circular ring.

5. The inner hole rolling fixture according to claim 1, characterized in that: The clamping assembly includes a pressing plate and a second clearance hole provided on the pressing plate; The second clearance hole is coaxial with the second circular ring.

6. The inner hole rolling fixture according to claim 4 or 5, characterized in that: The inner hole rolling fixture also includes a rotating shaft and a mounting block; The rotating shaft is installed on the main body, and the rotating shaft is driven by a forward and reverse motor; The bearing assembly is fixedly mounted on the rotating shaft; The mounting block is sleeved on the rotating shaft and rotates with the rotating shaft, and the mounting block is hinged to the clamping assembly; When the rotating shaft drives the bearing assembly and the clamping assembly to rotate toward the main shaft, the clamping assembly swings toward the bearing assembly; when the rotating shaft drives the bearing assembly and the clamping assembly to rotate away from the main shaft, the clamping assembly swings away from the bearing assembly.

7. The inner hole rolling fixture according to claim 6, characterized in that: The inner hole rolling fixture further comprises an adjustment component; the adjustment component is mounted on the rotating shaft; the adjustment component is used to adjust the position of the mounting block on the rotating shaft, thereby adjusting the height of the pressing block; The adjusting assembly comprises a push rod, a nut and a first clearance groove arranged on the rotating shaft; The nut is rotatably mounted on the rotating shaft; The push rod is placed in the first clearance groove, and the push rod is respectively clamped on both sides of the nut and the mounting block, and the rotating shaft drives the mounting block to move through the push rod.

8. The inner hole rolling fixture according to claim 6, characterized in that: The positioning assembly includes a round rod, a spring, a top block and a second clearance groove provided on the support member; The round rod is installed in the support member, the round rod is coaxial with the first clearance hole, and the upper end of the round rod is conical; The spring is sleeved on the round rod, and the spring gives the round rod a force to move downward; The top block is arranged on the main body, and the top block can push the round rod to move upward; When the rotating shaft drives the support member to move away from the main shaft, the top block moves the round rod upward through the second clearance groove, and the upper end of the round rod moves to the upper side of the carrier plate; when the rotating shaft drives the support member to move toward the main shaft, the round rod is separated from the top block, and the spring moves the round rod into the support member.

9. The inner hole rolling fixture according to claim 5, characterized in that: The inner hole rolling fixture also includes an electric cylinder and a pressing plate; The electric cylinder is mounted on the main body, and the clamping plate is mounted on the piston rod of the electric cylinder. The electric cylinder can drive the clamping plate to move away from and contact the clamping plate. When the rotating shaft drives the pressure plate to move toward the main shaft, the electric cylinder drives the pressure plate to swing toward the load-bearing component and be fixed; when the rotating shaft drives the pressure plate to move away from the main shaft, the electric cylinder drives the pressure plate to move away from the pressure plate, and the pressure plate swings away from the load-bearing component.

Images