Self-centering process equipment for processing shell parts and use method thereof

Abstract

The present invention discloses a self-centering process equipment for processing shell parts and a method for using the same. The process equipment includes a chuck, a claw part is arranged on the chuck, and a movable claw part is arranged on the upper end of the claw part; the claw part includes a soft claw, a claw, and a limit block; the claw and the soft claw are provided with a left and right swinging space through the limit block to realize the automatic left and right adjustment of the claw; the movable claw part includes a movable claw and a cylindrical pin; the movable claw and the claw are provided with an up and down swinging space through the cylindrical pin to realize the automatic up and down adjustment of the movable claw. Due to the use of a self-centering structure, the present invention can quickly and efficiently realize the clamping of the shell while ensuring safety, greatly improving the shell product quality and production efficiency, and reducing the labor intensity of personnel.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical clamps, in particular to self-centering process equipment for processing shell parts and a use method thereof. Background Art

[0002] Figure 3 The housing shown is one of the key components of the hydraulic travel motor, wherein the inner hole of the housing is processed with high precision, and the maximum inner hole depth reaches 150mm. If the normal clamping jaw 5 is used for clamping, the outer circle of the housing blank will have a draft angle, which will not only make the workpiece easy to change, but also cause uneven force points and loose clamping, which will also endanger the safety of on-site operators and cause certain damage to tools and equipment.

[0003] Publication number: CN119035597A, discloses an adaptive chuck, including a disc body, a clamping head, a driving component and a trigger assembly. A plurality of clamping heads are arranged on the disc body, and the clamping heads are slidably arranged in the slide rails arranged on the disc body. The clamping heads can move toward or away from each other under the action of the corresponding slide rails on the disc body under the drive of the clamping part; the clamping part is driven by the external driving component to perform pre-clamping, and when the pre-clamping is completed, the trigger assembly arranged on the bottom wall of the disc body is used to make the clamping part drive the clamping head to move synchronously to complete the final clamping.

[0004] The clamping claws of the prior art cannot adapt to the draft angle and there are safety risks when using them.

[0005] In summary, the technical solutions of the above-disclosed technologies, the technical problems to be solved, and the beneficial effects produced are all different from the present invention. Regarding more technical features, technical problems to be solved, and beneficial effects of the present invention, the above-disclosed technical documents do not provide any technical inspiration. Summary of the invention

[0006] In view of the above-mentioned defects in the prior art, an object of the present invention is to provide a self-centering process equipment for processing shell parts and a method of using the same.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] On the one hand, the present invention provides a self-centering process equipment for processing shell parts, comprising a chuck, a claw part is arranged on the chuck, and a movable claw part is arranged on the upper end of the claw part;

[0009] The clamping jaw part comprises a soft jaw, a first mandrel, a clamping jaw and a limit block; the soft jaw is connected to the chuck, a boss is arranged on the upper end surface of the soft jaw, a first positioning hole is arranged on the upper end surface of the boss, the first mandrel is arranged in the first positioning hole, a clamping jaw is sleeved on the outer side of the first mandrel, the upper end of the first mandrel is connected to a first positioning member, and the first positioning member axially positions the clamping jaw; both side end surfaces of the clamping jaw are connected to the movable jaw part, the limit block is connected to the end surface of the clamping jaw away from the center of the chuck, the limit block has an overlapping part with the boss, and a left and right swinging space is arranged between the limit block and the boss;

[0010] The movable claw part includes a second core shaft, a movable claw, and a cylindrical pin; the side end face of the clamping claw is provided with a second positioning hole and a third positioning hole, the second core shaft is inserted into the second positioning hole, the cylindrical pin is inserted into the third positioning hole, the movable claw is sleeved outside the second core shaft, and a second positioning piece is provided at the end of the second core shaft, and the second positioning piece axially positions the movable claw; the movable claw is provided with a movable hole corresponding to the cylindrical pin, the cylindrical pin is inserted into the movable hole, and an up and down swinging space is provided between the outer wall of the cylindrical pin and the inner wall of the movable hole; a protrusion is provided on the end face of the movable claw away from the clamping claw, and the protrusion is provided with a contact piece facing the center of the chuck.

[0011] Furthermore, an upward L-shaped groove is milled at the end of the soft claw close to the center of the chuck to position the bottom of the shell, and the vertical surface of the boss close to the center of the chuck is coplanar with the vertical surface of the L-shaped groove.

[0012] Furthermore, the end faces on both sides of the clamping jaw form the same angle with the center plane of the soft jaw, and the intersection line formed by extending the end faces on both sides of the clamping jaw is located between the clamping jaw and the center of the chuck.

[0013] Furthermore, the chuck is provided with an inverted T-shaped track groove, and the soft claw is provided with a first threaded countersunk hole, the first threaded countersunk hole corresponds to the inverted T-shaped track groove, and is connected by a fastening bolt and a T-shaped nut.

[0014] Furthermore, the outer circle of the first mandrel is provided with a clamping claw and a soft claw for clearance fit, a second threaded countersunk hole is arranged at the center of the first mandrel, a fifth screw is arranged in the second threaded countersunk hole, the fifth screw is inserted into the soft claw, and the fifth screw is threadedly connected with the soft claw;

[0015] Specifically, the limit block is connected to the claw via a fourth screw;

[0016] Specifically, the outer circle of the second core shaft is clearance-matched with the movable claw and the clamping claw respectively, a second threaded hole is arranged at the center of the second core shaft, a second screw is arranged in the second threaded hole, the second screw is inserted into the clamping claw, and the second screw is threadedly connected with the clamping claw.

[0017] Furthermore, the first positioning member includes a first gasket, the upper end surface of the claw is flush with the upper end surface of the first core shaft, the first gasket is connected to the first core shaft by a third screw, and the outer diameter of the first gasket is larger than the shaft diameter of the first core shaft.

[0018] Furthermore, the contact piece includes a first screw, the protrusion is provided with a threaded hole pointing to the center of the chuck, the first screw is threadedly connected in the threaded hole, both ends of the first screw pass through the threaded holes, and a first nut is provided at the rear end of the first screw for tightening.

[0019] Furthermore, the second positioning member includes a second gasket, the end face of the movable claw away from the clamping claw is flush with the end face of the second core shaft, the second gasket is pressed on the second core shaft through the driving head of the second screw, and the outer diameter of the second gasket is larger than the shaft diameter of the second core shaft.

[0020] Furthermore, at least three claw parts are provided and are evenly distributed along the circumference of the chuck.

[0021] In another aspect, the present invention provides a method for using a self-centering process equipment for processing shell parts, comprising the following steps:

[0022] Put the workpiece with draft angle on the outer circle into the soft jaws and tighten them. The clamping jaws swing left and right and the movable jaws swing up and down to achieve automatic adjustment and self-centering.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The invention adopts a self-centering structure, and can quickly and efficiently clamp a workpiece with an outer circle having a draft angle while ensuring safety, thereby greatly improving product quality and production efficiency and reducing the labor intensity of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The invention discloses a side sectional view of a self-centering process equipment for processing shell parts.

[0026] Figure 2 It is a top sectional view of a self-centering process equipment for processing shell-type parts according to the present invention.

[0027] Figure 3 The present invention is a shell processed.

[0028] Figure 4 The invention is a structural schematic diagram of a shell body clamping method using a self-centering process for processing shell body parts.

[0029] Figure 5 It is a schematic structural diagram of the claw part of the present invention.

[0030] Figure 6It is a schematic structural diagram of the movable claw part of the present invention.

[0031] In the figure: 1-housing, 2-first screw, 3-movable claw, 4-chuck, 5-claw, 6-soft claw, 7-first nut, 8-first spindle, 9-first gasket, 10-second spindle, 11-second gasket, 12-second screw, 13-third screw, 14-limiting block, 15-fourth screw, 16-cylindrical pin, 17-fifth screw. DETAILED DESCRIPTION

[0032] 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.

[0033] Embodiment 1:

[0034] See also Figures 1 to 6 The present invention provides a self-centering process equipment for processing shell parts, including a chuck 4, a claw part is arranged on the chuck 4, and a movable claw part is arranged on the upper end of the claw part.

[0035] Furthermore, the clamping jaw part includes a soft jaw 6, a first core shaft 8, a clamping jaw 5, and a limit block 14. The soft jaw 6 is connected to the chuck 4. A boss is arranged on the upper end surface of the soft jaw 6. A first positioning hole is arranged on the upper end surface of the boss. The first core shaft 8 is arranged in the first positioning hole. The first core shaft 8 plays a positioning role. An upward L-shaped groove is milled at the end of the soft jaw 6 close to the center of the chuck 4 to position the bottom of the shell 1. The vertical surface of the boss close to the center of the chuck 4 is coplanar with the vertical surface of the L-shaped groove. The clamping jaw 5 is sleeved on the outside of the first core shaft 8. The upper end of 8 is connected to the first positioning member, which axially positions the claw 5. The end faces of both sides of the claw 5 form the same angle with the center plane of the soft claw 6. The intersection line formed by the extension of the end faces of both sides of the claw 5 is located between the claw 5 and the center of the chuck 4. The end faces of both sides of the claw 5 are connected to the movable claw part. The limit block 14 is connected to the end face of the claw 5 away from the center of the chuck 4. The limit block 14 has an overlapping part with the boss. A left and right swinging space is set between the limit block 14 and the boss, and the left and right directions of the claw 5 are automatically adjusted through the left and right swinging space.

[0036] Specifically, the chuck 4 is provided with an inverted T-shaped track groove, and the soft jaw 6 is provided with a first threaded countersunk hole, which corresponds to the inverted T-shaped track groove and is connected by a fastening bolt and a T-shaped nut.

[0037] Preferably, the first threaded countersunk hole is an M20 threaded countersunk hole, the fastening bolt is an M20 hexagon socket bolt, and the fastening nut is an M20 T-nut.

[0038] Specifically, the outer circle of the first core shaft 8 has a clamping claw 5 and a soft claw 6 for clearance fit, a second threaded countersunk hole is set in the center of the first core shaft 8, a fifth screw 17 is set in the second threaded countersunk hole, the fifth screw 17 is inserted into the soft claw 6, the fifth screw 17 is threadedly connected to the soft claw 6, and the fifth screw 17 plays a positioning role.

[0039] Preferably, the second threaded countersunk hole is an M8 threaded countersunk hole, and the fifth screw 17 is an M8 hexagon socket screw.

[0040] Specifically, the limiting block 14 is connected to the claw 5 via a fourth screw 15 .

[0041] Preferably, the fourth screw 15 is an M4 hexagon socket screw.

[0042] Specifically, the first positioning member includes a first gasket 9 , the upper end surface of the claw 5 is flush with the upper end surface of the first core shaft 8 , the first gasket 9 is connected to the first core shaft 8 by a third screw 13 , and the outer diameter of the first gasket 9 is greater than the shaft diameter of the first core shaft 8 .

[0043] Preferably, the third screw 13 is an M5 hexagon socket screw.

[0044] Furthermore, the movable claw part includes a second core shaft 10, a movable claw 3, and a cylindrical pin 16. The side end face of the clamping claw 5 is provided with a second positioning hole and a third positioning hole. The second core shaft 10 is inserted into the second positioning hole, and the cylindrical pin 16 is inserted into the third positioning hole. The movable claw 3 is sleeved outside the second core shaft 10. A second positioning piece is provided at the end of the second core shaft 10. The second positioning piece axially positions the movable claw 3. The movable claw 3 is provided with a movable hole corresponding to the cylindrical pin 16. The cylindrical pin 16 is inserted into the movable hole. An up and down swinging space is provided between the outer wall of the cylindrical pin 16 and the inner wall of the movable hole. The movable claw 3 is automatically adjusted in the up and down directions through the up and down swinging space. A protrusion is provided on the end face of the movable claw 3 away from the clamping claw 5. The protrusion is provided with a contact piece facing the center of the chuck 4, and the contact piece is used to contact the outer circle of the shell 1.

[0045] Specifically, the contact piece includes a first screw 2, a protrusion is provided with a threaded hole pointing to the center of the chuck 4, the first screw 2 is threadedly connected in the threaded hole, both ends of the first screw 2 pass through the threaded holes, the front end surface of the first screw 2 is used to contact the outer circle of the shell 1, and the first nut 7 is used to tighten at the rear end of the first screw 2 to prevent the first screw 2 from loosening.

[0046] Preferably, the threaded hole is an M12 threaded hole, the first screw 2 is an M12 set screw, and the first nut 7 is an M12 nut.

[0047] Specifically, the outer circle of the second core shaft 10 is clearance-matched with the movable claw 3 and the clamping claw 5 respectively, a second threaded hole is set in the center of the second core shaft 10, a second screw 12 is set in the second threaded hole, the second screw 12 is inserted into the clamping claw 5, and the second screw 12 is threadedly connected to the clamping claw 5.

[0048] Preferably, the second screw 12 is an M8 hexagon socket screw.

[0049] Specifically, the second positioning member includes a second gasket 11, the end face of the movable claw 3 away from the clamping claw 5 is flush with the end face of the second core shaft 10, the second gasket 11 is pressed on the second core shaft 10 by the driving head of the second screw 12, and the outer diameter of the second gasket 11 is larger than the axial diameter of the second core shaft 10.

[0050] Furthermore, at least three claw parts are provided and are evenly distributed along the circumference of the chuck 4 .

[0051] Embodiment 2:

[0052] Based on Example 1, this example provides a method for using a self-centering process equipment for processing shell parts, including the following steps:

[0053] First, connect the soft jaw 6 and the chuck 4 with fastening bolts and T-nuts; then, make a clearance fit between the outer circle of one end of the first core shaft 8 and the first positioning hole of the soft jaw 6, and process an L-shaped groove at the front end of the soft jaw 6 to maintain the same height, which plays a role in positioning the shell 1. When processing the outer circle of the first core shaft 8 and the inner hole of the soft jaw 6, they should be matched by grinding to play a role in positioning the first core shaft 8 and the soft jaw 6; then, insert the claw 5 into the outer circle of the other end of the first core shaft 8, make a clearance fit, fix the first core shaft 8 and the soft jaw 6 by the fifth screw 17, put the first gasket 9 on the end face of the claw 5, and connect it to the first core shaft 8 with two third screws 13 to fix the claw 5; connect the limit block 14 to the back of the claw 5 with two fourth screws 15, and the left and right swing space between the limit block 14 and the claw 5 is 1mm-2mm gap, so that the claw 5 can be automatically adjusted according to the left and right direction of the shell.

[0054] Put the second core shaft 10 into the second positioning holes on both sides of the clamping jaw 5 respectively, and process it through clearance fit during processing, then put the cylindrical pin 16 into the third positioning hole, and then assemble the movable claw 3 with the second core shaft 10 and the cylindrical pin 16. The up and down swinging space between the movable hole at the bottom of the movable claw 3 and the cylindrical pin 16 is 1mm-2mm gap, so that the movable claw 3 can be automatically adjusted in the up and down direction, and then put the second gasket 11 on both sides of the movable claw 3, and use the second screw 12 to pass through the second gasket 11, the movable claw 3 and the clamping jaw 5 to fix them, and then put the first screw 2 on the movable claw 3, and tighten it with the first nut 7.

[0055] After the assembly is completed, put the bottom of the shell 1 into the L-shaped groove of the soft claw 6 and tighten it. The clamping claw 5 swings left and right, and the movable claw 3 swings up and down to adapt to the draft angle to achieve automatic adjustment and self-centering. Figure 3 The housing 1 is processed.

[0056] All components and connection methods of components not discussed in this application belong to the known technologies in this technical field and can be directly applied without further explanation.

[0057] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0058] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0059] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-centering process equipment for processing shell parts, comprising a chuck, on which a claw part is provided, characterized in that: A movable claw portion is provided at the upper end of the clamping claw portion; The clamping claw part includes a soft claw, a first mandrel, a clamping claw, and a limit block; The soft claw is connected to the chuck, a boss is provided on the upper end surface of the soft claw, a first positioning hole is provided on the upper end surface of the boss, the first mandrel is provided in the first positioning hole, a clamping claw is sleeved on the outer side of the first mandrel, the upper end of the first mandrel is connected to a first positioning member, and the first positioning member axially positions the clamping claw; Both side end surfaces of the clamping claw are connected to the movable claw part, the limit block is connected to the end surface of the clamping claw away from the center of the chuck, the limit block and the boss have an overlapping part, and a left and right swing space is set between the limit block and the boss; The movable claw part includes a second mandrel, a movable claw, and a cylindrical pin; The side end surface of the clamping claw is provided with a second positioning hole and a third positioning hole, the second mandrel is inserted into the second positioning hole, the cylindrical pin is inserted into the third positioning hole, the movable claw is sleeved outside the second mandrel, and a second positioning piece is provided at the end of the second mandrel, and the second positioning piece axially positions the movable claw; The movable claw is provided with a movable hole corresponding to the cylindrical pin, the cylindrical pin is inserted into the movable hole, and an up and down swinging space is provided between the outer wall of the cylindrical pin and the inner wall of the movable hole; The end surface of the movable claw away from the clamping claw is provided with a protrusion, and the protrusion is provided with a contact piece facing the center of the chuck.

2. The self-centering process equipment for processing shell parts according to claim 1 is characterized in that: An upward L-shaped groove is milled at the end of the soft claw close to the center of the chuck to position the bottom of the shell, and the vertical surface of the boss close to the center of the chuck is coplanar with the vertical surface of the L-shaped groove.

3. The self-centering process equipment for shell parts processing according to claim 1 is characterized in that: The end faces on both sides of the clamping jaw form the same angle with the center plane of the soft jaw, and the intersection line formed by extending the end faces on both sides of the clamping jaw is located between the clamping jaw and the center of the chuck.

4. The self-centering process equipment for shell parts processing according to claim 1 is characterized in that: The chuck is provided with an inverted T-shaped track groove, and the soft claw is provided with a first threaded countersunk hole, which corresponds to the inverted T-shaped track groove and is connected by a fastening bolt and a T-shaped nut.

5. The self-centering process equipment for shell parts processing according to claim 1 is characterized in that: The outer circle of the first mandrel is respectively provided with a clamping claw and a soft claw for clearance fit, a second threaded countersunk hole is arranged at the center of the first mandrel, a fifth screw is arranged in the second threaded countersunk hole, the fifth screw is inserted into the soft claw, and the fifth screw is threadedly connected with the soft claw; The limit block is connected to the claw via a fourth screw; The outer circle of the second core shaft is clearance-matched with the movable claw and the clamping claw respectively. A second threaded hole is arranged at the center of the second core shaft. A second screw is arranged in the second threaded hole. The second screw is inserted into the clamping claw, and the second screw is threadedly connected with the clamping claw.

6. The self-centering process equipment for shell parts processing according to claim 1 is characterized in that: The first positioning member includes a first gasket, the upper end surface of the claw is flush with the upper end surface of the first core shaft, the first gasket is connected to the first core shaft through a third screw, and the outer diameter of the first gasket is larger than the shaft diameter of the first core shaft.

7. The self-centering process equipment for shell parts processing according to claim 1 is characterized in that: The contact member comprises a first screw, the protrusion is provided with a threaded hole pointing to the center of the chuck, the threaded hole is threadedly connected with the first screw, both ends of the first screw pass through the threaded holes, and a first nut is provided at the rear end of the first screw for tightening.

8. The self-centering process equipment for processing shell parts according to claim 5 is characterized in that: The second positioning member includes a second gasket, the end face of the movable claw away from the clamping claw is flush with the end face of the second core shaft, the second gasket is pressed on the second core shaft by the driving head of the second screw, and the outer diameter of the second gasket is larger than the shaft diameter of the second core shaft.

9. A self-centering process equipment for processing shell parts according to any one of claims 1 to 8, characterized in that: The number of the clamping claw parts is at least three and they are evenly distributed along the circumference of the chuck.

10. A method for using a self-centering process equipment for processing shell parts, characterized in that: The following steps are involved: Put the workpiece with draft angle on the outer circle into the soft jaws and tighten them. The clamping jaws swing left and right and the movable jaws swing up and down to achieve automatic adjustment and self-centering.

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