Self-centering technological equipment for shell part machining

Abstract

The utility model discloses self-centering process equipment for processing shell parts, which comprises a chuck, a clamping jaw part is arranged on the chuck, and a movable jaw part is arranged at the upper end of the clamping jaw part; the clamping jaw part comprises a soft jaw, a clamping jaw and a limiting block; the clamping jaw and the soft jaw are provided with a left-right swing space through a limiting block, and left-right automatic adjustment of the clamping jaw is achieved. The movable claw part comprises a movable claw and a cylindrical pin; the movable claw and the clamping claw are provided with a vertical swing space through a cylindrical pin, and vertical automatic adjustment of the movable claw is achieved. Due to the adoption of a self-centering structure, the shell can be quickly and efficiently clamped under the condition of ensuring safety, the product quality and the production efficiency of the shell are greatly improved, and the labor intensity of personnel is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical clamp technical field, concretely is a kind of self-centering process equipment for shell class part processing. BACKGROUND

[0002] Figure 3 The shell is one of key components of hydraulic walking motor, and the inner hole of the shell has high machining precision and a depth of up to 150mm. If a normal jaw 5 is used for holding, the shell blank has a draft, which makes the workpiece easy to deform, the stress points uneven, and the clamping unstable. It also poses a danger to the safety of the operator, and causes damage to the tool and equipment.

[0003] Publication No. CN119035597A discloses a self-adaptive chuck, which includes a disc body, a clamping head, a driving component and a trigger assembly. The disc body is provided with a plurality of clamping heads, which are slidingly arranged in the slide rails provided on the disc body. The clamping heads can move towards or away from each other under the action of the slide rails on the disc body driven by the clamping part. The clamping part is pre-clamped by the external driving component. When the pre-clamping is completed, the clamping part drives the clamping head to move synchronously by the trigger assembly arranged at the bottom wall of the disc body, to complete the final clamping.

[0004] The jaw of the prior art cannot adapt to the draft, and there is a safety risk when used.

[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 those of the utility model. The above disclosed technical documents do not provide technical inspiration for more technical features, technical problems to be solved and beneficial effects of the utility model. CONTENT OF THE UTILITY MODEL

[0006] In view of the above-mentioned defects of the prior art, the utility model aims to provide a self-centering process equipment for shell class part processing.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a self-centering process equipment for shell class part processing, which comprises a chuck, a jaw part is arranged on the chuck, and a movable jaw part is arranged at the upper end of the jaw part.

[0009] The claw part comprises a soft claw, a first mandrel, a claw, and a limiting block; the soft claw is connected with the chuck, the upper end surface of the soft claw is provided with a boss, the upper end surface of the boss is provided with a first positioning hole, the first mandrel is arranged in the first positioning hole, the first mandrel is externally sleeved with the claw, the upper end of the first mandrel is connected with a first positioning member, and the first positioning member axially positions the claw; the two side end surfaces of the claw are both connected with a movable claw part, the limiting block is connected with the end surface of the claw away from the center of the chuck, the limiting block has an overlapping part with the boss, and a left-right swing space is arranged between the limiting block and the boss.

[0010] The movable claw part comprises a second mandrel, a movable claw, and a cylindrical pin; the side end surface of the 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, a second positioning member is arranged at the end head of the second mandrel, and the second positioning member 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-down swing space is arranged 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 claw is provided with a protrusion, and the protrusion is provided with a contact member facing the center of the chuck.

[0011] Further, the end head of the soft claw close to the center of the chuck is milled to form an upward L-shaped groove for positioning 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] Further, the two side end surfaces of the claw form the same included angle with the central surface of the soft claw, and the intersection line formed by the extension of the two side end surfaces of the claw is located between the claw and the center of the chuck.

[0013] Further, the chuck is provided with an inverted T-shaped track groove, 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 the first threaded countersunk hole is connected with the inverted T-shaped track groove through a fastening bolt and a T-shaped nut.

[0014] Further, the outer circle of the first mandrel is respectively gap-fitted with the claw and the soft claw, 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 limiting block is connected with the claw through a fourth screw.

[0016] Specifically, the outer circle of the second mandrel is respectively gap-fitted with the movable claw and the claw, a second threaded hole is arranged at the center of the second mandrel, a second screw is arranged in the second threaded hole, the second screw is inserted into the claw, and the second screw is threadedly connected with the claw.

[0017] Further, the first positioning member comprises a first gasket, the upper end surface of the claw is flush with the upper end surface of the first mandrel, the first gasket is connected with the first mandrel through a third screw, and the outer diameter of the first gasket is greater than the shaft diameter of the first mandrel.

[0018] Further, the contact member comprises a first screw, the protruding block is provided with a threaded hole pointing to the center of the chuck, the first screw is screwed in the threaded hole, the first screw passes out of the threaded hole at both ends, and a first nut is arranged at the rear end of the first screw.

[0019] Further, the second positioning member comprises a second gasket, the end surface of the movable claw away from the claw is flush with the end surface of the second mandrel, the second gasket is pressed on the second mandrel through the driving head of a second screw, and the outer diameter of the second gasket is greater than the shaft diameter of the second mandrel.

[0020] Further, the claw part is provided with at least three and is uniformly distributed along the circumference of the chuck.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model discloses a self-centering structure, which can quickly and efficiently realize the clamping of the workpiece with the draft angle on the outer circle under the condition of ensuring safety, greatly improves product quality and production efficiency, and reduces the labor intensity of personnel. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a side sectional view of a self-centering process equipment for shell part machining of the utility model.

[0024] Figure 2 It is a planar sectional view of a self-centering process equipment for shell part machining of the utility model.

[0025] Figure 3 It is a shell machined by the utility model.

[0026] Figure 4 It is a structure schematic diagram of the self-centering process equipment for shell part machining of the utility model.

[0027] Figure 5 It is a structure schematic diagram of the claw part in the utility model.

[0028] Figure 6 It is a structure schematic diagram of the movable claw part in the utility model.

[0029] In the figure: 1 - shell, 2 - first screw, 3 - movable claw, 4 - chuck, 5 - clamping jaw, 6 - soft claw, 7 - first nut, 8 - first mandrel, 9 - first gasket, 10 - second mandrel, 11 - second gasket, 12 - second screw, 13 - third screw, 14 - limit block, 15 - fourth screw, 16 - cylindrical pin, 17 - fifth screw. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] Embodiment 1

[0032] Please refer to Figures 1 to 6 The utility model provides a kind of self-centering process equipment for shell class part processing, including chuck 4, the chuck 4 is set clamping jaw part, the clamping jaw part upper end is set movable claw part.

[0033] Further, the clamping jaw part includes soft claw 6, first mandrel 8, clamping jaw 5, limit block 14, the soft claw 6 is connected with chuck 4, the upper end surface of the soft claw 6 is provided with boss, the upper end surface of the boss is provided with first positioning hole, the first mandrel 8 is arranged in first positioning hole, the first mandrel 8 plays the role of positioning, the end head of the soft claw 6 close to the center of chuck 4 is milled upward L-shaped groove, to position shell 1 bottom, the vertical surface of the boss close to the center of chuck 4 is coplanar with the vertical surface of L-shaped groove;The first mandrel 8 is externally sleeved with clamping jaw 5, the upper end of the first mandrel 8 is connected with first positioning piece, the first positioning piece is axially positioned clamping jaw 5, the two side end surfaces of the clamping jaw 5 form the same angle with the central surface of soft claw 6, the intersection line formed by the extension of the two side end surfaces of the clamping jaw 5 is located between clamping jaw 5 and the center of chuck 4, the two side end surfaces of the clamping jaw 5 are connected with movable claw part, the limit block 14 is connected with the end surface of clamping jaw 5 away from the center of chuck 4, the limit block 14 has overlapping part with boss, left and right swing space is arranged between the limit block 14 and the boss, and the left and right direction of clamping jaw 5 is automatically adjusted through left and right swing space.

[0034] Specifically, the chuck 4 is provided with inverted T-shaped track groove, the soft claw 6 is provided with first threaded countersunk hole, the first threaded countersunk hole corresponds with inverted T-shaped track groove, and is connected by fastening bolt, T-shaped nut.

[0035] Preferably, the first threaded counterbore is an M20 threaded counterbore, the fastening bolt is an M20 hexagonal bolt, and the fastening nut is an M20 T-type nut.

[0036] Specifically, the outer circle of the first mandrel 8 is gap-fitted by the claws 5 and the soft claws 6, respectively, the first mandrel 8 is provided with a second threaded counterbore, the fifth screw 17 is arranged in the second threaded counterbore, the fifth screw 17 is inserted into the soft claw 6, the fifth screw 17 is threadedly connected with the soft claw 6, and the fifth screw 17 plays a positioning role.

[0037] Preferably, the second threaded counterbore is an M8 threaded counterbore, and the fifth screw 17 is an M8 hexagonal screw.

[0038] Specifically, the limiting block 14 is connected with the claw 5 through the fourth screw 15.

[0039] Preferably, the fourth screw 15 is an M4 hexagonal screw.

[0040] 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 mandrel 8, the first gasket 9 is connected with the first mandrel 8 through the third screw 13, and the outer diameter of the first gasket 9 is greater than the shaft diameter of the first mandrel 8.

[0041] Preferably, the third screw 13 is an M5 hexagonal screw.

[0042] Further, the movable claw part includes a second mandrel 10, a movable claw 3, and a cylindrical pin 16, the side end surface of the claw 5 is provided with a second positioning hole and a third positioning hole, the second mandrel 10 is inserted into the second positioning hole, the cylindrical pin 16 is inserted into the third positioning hole, the movable claw 3 is sleeved outside the second mandrel 10, the end head of the second mandrel 10 is provided with a second positioning member, the second positioning member 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 arranged between the outer wall of the cylindrical pin 16 and the inner wall of the movable hole, the up-and-down swinging space enables the movable claw 3 to automatically adjust in the up-and-down direction, the end surface of the movable claw 3 away from the claw 5 is provided with a protrusion, 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.

[0043] Specifically, the contact piece includes a first screw 2, the 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, the two ends of the first screw 2 pass out of the threaded hole, the front end surface of the first screw 2 is used to contact the outer circle of the shell 1, and the rear end of the first screw 2 is fastened by a first nut 7 to prevent the first screw 2 from loosening.

[0044] 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.

[0045] Specifically, the outer circle of the second mandrel 10 is in clearance fit with the movable claw 3 and the claw 5, the second mandrel 10 is provided with a second threaded hole, the second threaded hole is provided with a second screw 12, the second screw 12 is inserted into the claw 5, and the second screw 12 is in threaded connection with the claw 5.

[0046] Preferably, the second screw 12 is an M8 hexagonal socket head cap screw.

[0047] Specifically, the second positioning member includes a second gasket 11, the end surface of the movable claw 3 away from the claw 5 is flush with the end surface of the second mandrel 10, the second gasket 11 is pressed against the second mandrel 10 by the driving head of the second screw 12, and the outer diameter of the second gasket 11 is greater than the shaft diameter of the second mandrel 10.

[0048] Further, the claw portion is provided with at least three claws, and the claws are uniformly distributed in the circumferential direction of the chuck 4.

[0049] Embodiment 2:

[0050] Based on the embodiment 1, the embodiment provides a use method of the shell part machining self-centering process equipment, including the following steps:

[0051] First, connect the soft claw 6 and the chuck 4 with fastening bolts and T-shaped nuts; then, make the first mandrel 8 in clearance fit with the first positioning hole of the soft claw 6, process an L-shaped groove at the front end of the soft claw 6 to keep the height consistent, and play a shell 1 positioning role; when processing the outer circle of the first mandrel 8 and the inner hole of the soft claw 6, make them in fit through matching grinding, and play a first mandrel 8 and soft claw 6 positioning role; then, make the claw 5 fit into the outer circle of the other end of the first mandrel 8, and make them in clearance fit; fix the first mandrel 8 and the soft claw 6 through the fifth screw 17, place the first gasket 9 on the end surface of the claw 5, and connect the first mandrel 8 with the first gasket 9 through two third screws 13 to play a fixed claw 5 role; connect the limiting block 14 to the back of the claw 5 and connect them with two fourth screws 15, the left and right swing space between the limiting block 14 and the claw 5 is 1mm-2mm clearance, and the claw 5 can be automatically adjusted according to the left and right directions of the shell.

[0052] Put the second core shaft 10 into the second positioning hole on both sides of the clamping jaw 5 respectively, and process through the gap fit, then put the cylindrical pin 16 into the third positioning hole, and then assemble the movable jaw 3 with the second core shaft 10 and the cylindrical pin 16, the up-down swing space between the movable jaw 3 bottom movable hole and the cylindrical pin 16 is 1mm-2mm gap, so that the movable jaw 3 can be automatically adjusted in the up-down direction, then put the second gasket 11 on both sides of the movable jaw 3, and fix the second screw 12 through the second gasket 11, the movable jaw 3 and the clamping jaw 5, and then put the first screw 2 on the movable jaw 3 and tighten through the first nut 7.

[0053] After assembly, put the shell 1 bottom into the L-shaped groove of the soft jaw 6, and then tighten, swing the clamping jaw 5 left and right, swing the movable jaw 3 up and down, adapt to the draft angle, realize automatic adjustment and self-centering, and press Figure 3 Process the shell 1.

[0054] In the present application, the parts not discussed in detail, the connection mode of each part in the present application belongs to the known technology in the technical field. Direct application can be used, and will not be repeated.

[0055] In the present application, the term "a plurality of" refers to two or more, unless otherwise specified. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, "connecting" can be fixed connection, or detachable connection, or integrally connected. "Connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the present application.

[0057] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean 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 application. In the present application, the illustrative description 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.

[0058] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-centering process equipment for machining a shell-type part, comprising a chuck on which a jaw portion is provided, characterized in that, The upper end of the claw part is provided with a movable claw part; The claw part comprises a soft claw, a first mandrel, a claw, and a limiting block; The soft claw is connected to the chuck, the upper end surface of the soft claw is provided with a boss, the upper end surface of the boss is provided with a first positioning hole, the first mandrel is arranged in the first positioning hole, the outer part of the first mandrel is sleeved with the claw, the upper end of the first mandrel is connected with a first positioning member, and the first positioning member axially positions the claw; The two side end surfaces of the claw are connected with the movable claw part, the limiting block is connected with the end surface of the claw away from the center of the chuck, the limiting block and the boss have an overlapping part, and a left-right swing space is arranged between the limiting block and the boss; The movable claw part comprises a second mandrel, a movable claw, and a cylindrical pin; The side end surface of the 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, the end head of the second mandrel is provided with a second positioning member, and the second positioning member 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-down swing space is arranged 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 claw is provided with a protrusion, and the protrusion is provided with a contact member facing the center of the chuck.

2. A self-centering process equipment for machining of a shell-type part according to claim 1, characterized in that, The end head of the soft claw close to the center of the chuck is milled to form an upward L-shaped groove for positioning 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. A self-centering process equipment for machining of a housing part according to claim 1, characterized in that, The two side end surfaces of the claw form the same included angle with the central surface of the soft claw, and the intersection formed by the extension of the two side end surfaces of the claw is located between the claw and the center of the chuck.

4. A self-centering process equipment for machining of a housing part according to claim 1, characterized in that, The chuck is provided with an inverted T-shaped track groove, 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 the first threaded countersunk hole is connected through a fastening bolt and a T-shaped nut.

5. A self-centering process equipment for machining of a housing part according to claim 1, characterized in that, The outer circle of the first mandrel is respectively gap-fitted with the claw and the soft claw, the center of the first mandrel is provided with a second threaded countersunk hole, 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 limiting block is connected with the claw through a fourth screw; The outer circle of the second mandrel is respectively gap-fitted with the movable claw and the claw, the center of the second mandrel is provided with a second threaded hole, a second screw is arranged in the second threaded hole, the second screw is inserted into the claw, and the second screw is threadedly connected with the claw.

6. A self-centering process equipment for machining of a housing part according to claim 1, characterized in that, The first positioning member comprises a first gasket, the upper end surface of the claw is flush with the upper end surface of the first mandrel, the first gasket is connected with the first mandrel through a third screw, and the outer diameter of the first gasket is greater than the shaft diameter of the first mandrel.

7. A self-centering process equipment for machining of a housing part according to claim 1, 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 first screw is threadedly connected in the threaded hole, the two ends of the first screw pass out of the threaded hole, and the rear end of the first screw is provided with a first nut for tightening.

8. A self-centering process equipment for machining of a shell-type part according to claim 5, characterized in that, The second positioning member comprises a second gasket, the end surface of the movable claw away from the claw is flush with the end surface of the second mandrel, the second gasket is pressed on the second mandrel through the driving head of a second screw, and the outer diameter of the second gasket is greater than the shaft diameter of the second mandrel.

9. A self-centering process equipment for machining of shell-type parts according to any one of claims 1-8, characterized in that, The claw portions are arranged at least three and are uniformly distributed along the circumference of the chuck.

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