WO2021120747A1 - Annular workpiece inner hole chamfering device - Google Patents

Abstract

An annular workpiece inner hole chamfering device, comprising a movable workpiece clamping mechanism (100) and a chamfering mechanism (200). The movable workpiece clamping mechanism comprises a clamping jaw assembly (1) and a first drive mechanism (11); the chamfering mechanism comprises a chamfering piece (2), a second drive mechanism (21) and a third drive mechanism (22). A mounting plate (3) is arranged below the chamfering piece, said mounting plate being provided with an upward-facing placement opening (31) for accommodating a workpiece (4) and for allowing through-passage of a support piece (5); the mounting plate is provided with a positioning slot (37) having a side opening for allowing inward extension of a positioning block (6); the placement opening communicates with the positioning slot, and a fourth drive mechanism (51) is arranged below the mounting plate; a fifth driving mechanism (61) is arranged to one side of the mounting plate; the fourth driving mechanism is used for actuating vertical movement of a supporting block; the fifth driving mechanism is used for actuating movement of the positioning block into contact with a side face of the workpiece in the placement opening. The present device ensures the angle of the inner hole chamfer and the uniformity of said chamfer, thus improving the chamfering effect.

Description

Device for chamfering inner hole of annular workpiece Technical field

The invention relates to a chamfering device for an inner hole of a ring-shaped workpiece.

Background technique

Annular workpieces such as magnetic rings need to be chamfered at both ends of the inner hole, and the chamfering operation is usually performed manually. A motor is fixed on the workbench, the output end of the motor is provided with a chamfering block, and the end of the chamfering block is tapered. The worker holds the work piece and places the work piece on the end of the chamfering block for chamfering; or the workbench is equipped with a tool for chamfering. The positioning seat for positioning the workpiece, the positioning seat is provided with an upwardly opening accommodating groove, and the middle of the accommodating groove bottom is recessed to form a concession groove that gives way to the end of the chamfering block. The work piece fixes the chamfering block on the end of the electric drill. Then hold the electric drill to chamfer the inner hole of the workpiece.

The manual chamfering method is difficult to ensure the angle of the inner hole chamfering and the uniformity of the inner hole chamfering, and the defective rate is relatively high.

technical problem

The object of the present invention is to provide a ring-shaped workpiece inner chamfering device that can ensure the chamfering angle of the inner hole and the uniformity of the inner hole chamfering to improve the chamfering effect.

Technical solutions

In order to achieve the above objective, the present invention adopts the following technical solutions: an annular workpiece inner hole chamfering device, including a workpiece clamping and moving mechanism and a chamfering mechanism, the workpiece clamping and moving mechanism includes a clamping jaw assembly for clamping the workpiece And a first driving mechanism for moving the clamping jaw assembly in the left-right direction, the chamfering mechanism includes a chamfering block, a second driving mechanism and a third driving mechanism, and the second driving mechanism is used for rotating the chamfering block , The third driving mechanism is used to move the chamfering block in the up and down direction, a fixing plate is provided on the lower side of the chamfering block, and the fixing plate has a placement groove that opens upward to accommodate the workpiece and allows the support block to pass through, so The chamfering block is located above the placing groove, the fixing plate has a positioning groove that opens on the side for the positioning block to extend into, the placing groove is connected to the positioning groove, and a fourth driving mechanism is provided below the fixing plate. A fifth drive mechanism is provided on the side of the plate. The fourth drive mechanism is used to move the support block in the up and down direction. The fifth drive mechanism is used to move the positioning block along the positioning groove and to be aligned with the side surface of the workpiece in the groove. contact.

When the device of the present invention is used, the clamping jaw assembly clamps the workpiece and moves between the chamfering block and the fixed plate, and then the supporting block rises under the action of the fourth driving mechanism, and then the clamping jaws of the clamping jaw assembly are released to make the workpiece It falls on the upper end of the support block, and then the support block is reset under the action of the fourth driving mechanism, and then the fifth driving mechanism drives the positioning block to move, and the positioning block is opposed to the workpiece to limit the rotation of the workpiece. Finally, the chamfering block is in the first The three-drive mechanism moves down, and the chamfering block rotates under the action of the fourth drive mechanism to perform chamfering; the first drive mechanism drives the jaw assembly to move left and right to realize the workpiece in the feeding area and the processing area And the movement between the blanking areas to improve production efficiency. In the present invention, the third driving mechanism is used to ensure that the chamfering block does not tilt or move left and right, and the fifth driving mechanism is used to realize the positioning of the workpiece to ensure the inner hole chamfer angle and chamfer uniformity. Wherein, the third driving mechanism is used to enable the chamfering block to move downward when in contact with the workpiece to ensure the chamfering depth of the inner hole; the third driving mechanism can be an air cylinder or an electric push rod.

Preferably, the middle of the support block has a positioning protrusion extending upward, and when the positioning block moves under the action of the fifth driving mechanism, the positioning block contacts the workpiece and makes the inner hole wall of the workpiece contact the positioning protrusion surface .

The positioning protrusion is used to limit the movement of the workpiece in the horizontal direction, and the positioning protrusion is in contact with the inner edge of the workpiece for positioning, which can ensure the coaxiality between the workpiece and the chamfer block more than the outer edge contact positioning.

Preferably, the clamping jaw assembly of the workpiece clamping and moving mechanism is fixed to the output end of the sixth driving mechanism, and the sixth driving mechanism is used for horizontal turning of the clamping jaw assembly, and the fixing plate is provided with two placement grooves, each placement groove There is a chamfering block on the upper side, a support block is provided in each placement slot, the positioning protrusion on the support block is composed of an upper part and a lower part, and the upper part of the positioning protrusion of at least one support block is formed by the upper part. A tapered structure with a gradually larger outer diameter; the number of the clamping jaw assembly is two, the distance between the two clamping jaw assemblies is the same as the distance between the two placing grooves, and the first driving mechanism drives the two clamping jaw assemblies Synchronous movement; the workpiece clamping and moving mechanism also includes a ninth drive mechanism for moving the clamping jaw assembly back and forth, the sixth drive mechanism is fixed to the output end of the ninth drive mechanism, and the two ninth drive mechanisms are fixed to the first drive Mechanism output.

Among them, the positioning protrusion is a tapered structure with a narrow top and a wide bottom, so as to contact the wall of the inner hole of the workpiece that has been poured, so that the utility model can be used for chamfering the two ends of the inner hole of the workpiece. The invention is provided with two placing grooves and two chamfering blocks. One placing groove can be used for chamfering one end of the inner hole of the workpiece, and the other placing groove is used for chamfering the other end of the inner hole of the workpiece. Two placing grooves The inner hole of a workpiece can be chamfered at each location to improve production efficiency. Among them, the sixth drive mechanism is used for the clamping jaw assembly 180 °Flip to achieve the workpiece 180 °Flip. Among them, the distance between the two clamping jaw assemblies is the same as the distance between the two placing grooves, and the two clamping jaw assemblies can perform different operations respectively to further improve production efficiency. Among them, the ninth driving mechanism is arranged so that the jaw assembly can avoid the chamfering mechanism.

Preferably, a cushion pad is fixed at the upper end of the support block, and the cushion pad is annular and surrounds the circumferential outer side of the positioning protrusion. The cushion is used to avoid the rigid contact between the workpiece and the support block directly to avoid damage to the workpiece.

Preferably, the positioning block has a contact surface for contacting the workpiece, and the contact surface has an arc surface structure that opens to the side of the placement groove. By making the end surface of the positioning block a curved surface structure, the contact area between the positioning block and the workpiece is increased to improve the positioning and fixing effect of the workpiece, so as to prevent the workpiece from rotating along with the chamfering block.

Preferably, a conveying plate is provided between the fixed plate and the feeding mechanism, the conveying plate is arranged in the front-to-rear direction, the fixed plate is provided with a push plate, and the distance between the lower end surface of the push plate and the end surface of the fixed plate Is less than the thickness of a workpiece, the push plate is provided with a receiving gap that opens to the side of the conveying plate and is used for accommodating the workpiece. The push plate is matched with a seventh drive mechanism that drives the push plate to move to make the push plate move. The accommodating notch of the board moves to above a placement slot.

The above arrangement is used to move the workpiece into the placing groove, so that the clamping jaw assembly can only take off and unload the workpiece after the chamfering is completed, so as to reduce the operation action of the workpiece clamping and moving mechanism.

Preferably, an eighth driving mechanism for moving the sponge eggs in the up and down direction is arranged above the conveying plate, the sponge eggs are in a structure with a thick middle and thin upper and lower ends, and a fixed block is provided at the output end of the eighth driving mechanism. , The lower side of the fixed block is provided with two oppositely arranged limit blocks, the lower end of the limit block is provided with a limit part, the limit part has a limit notch that penetrates up and down and opens on the side, the sponge egg quilt It is limited between the limit parts of the two limit blocks, and the lower part of the sponge egg is located in the limit gap, and the middle part of the sponge egg is supported above the limit part.

The sponge egg is used to soak the anti-rust liquid. The eighth drive mechanism makes the sponge egg contact with the end surface of the workpiece and even the inner hole of the workpiece to reduce sparks generated when the workpiece is chamfered. The setting shape of the sponge egg and the setting of the limit part of the limit block make the positioning and fixing of the sponge egg more convenient. Among them, according to the feeding frequency, the control of the eighth driving mechanism is realized, so that each workpiece can contact the sponge egg.

Preferably, a storage container is provided on the side of the eighth driving mechanism, the lower end of the storage container is open and connected to one end of a hose, and the other end of the hose is connected to a sponge egg, and the limit block is provided with a through hole for softening. The through hole through which the tube passes. The storage container is used to store the anti-rust liquid, so that the sponge eggs can always be filled with the anti-rust liquid.

Preferably, the output end of the third driving mechanism is provided with a connecting plate, the second driving mechanism and the buffer mechanism are fixed on the connecting plate, the buffer mechanism includes a housing, and a buffer contact block is provided at the lower end of the housing, The connecting plate is provided with a through hole penetrating up and down for the housing to pass through, the outer wall of the housing and the through hole are provided with a threaded structure that cooperates with each other, or the housing is provided with an external threaded structure and fitted with two nuts, The shell is fixed with the connecting plate so that the connecting plate is located between the two nuts. The buffer mechanism is used to avoid the collision between the chamfering block and the workpiece. The buffer mechanism has a certain buffer limit. When the first driving mechanism is selected as the cylinder, the cylinder can be directly pressed down, and the chamfering block can be supported by the buffer mechanism to determine the limit position of the chamfering block downward movement , In order to ensure the chamfering depth while avoiding excessive chamfering.

Preferably, a fixing sleeve is provided outside the chamfering block, the plane of the lower edge of the chamfering block is located below the plane of the lower end surface of the fixing sleeve, and the side of the chamfering mechanism is provided with a dust suction mechanism, the dust suction mechanism With retractable suction end. The fixed sleeve is used to collect the splashed wastes to avoid random flying of the wastes, so that the dust suction mechanism can suck away the wastes. Among them, the dust suction mechanism can be any existing vacuum cleaner with a stretchable dust suction end.

Beneficial effect

The invention has the advantage of ensuring the chamfering angle of the inner hole and the uniformity of the chamfering of the inner hole to improve the chamfering effect.

Description of the drawings

Figure 1 It is a schematic diagram of the structure of the present invention;

Figure 2 It is a schematic structural diagram of the present invention with the feeding mechanism and the unloading mechanism removed;

Figure 3 It is a schematic diagram of the structure of two chamfering mechanisms of the present invention;

Figure 4 It is a schematic diagram of a structure of the workpiece clamping and moving mechanism of the present invention;

Figure 5 It is a schematic diagram of a structure of the left side chamfering mechanism of the present invention;

Figure 6 Is an enlarged view of the placement groove of the present invention;

Figure 7 It is a structural schematic diagram of the fixed plate positioning groove of the present invention

Figure 8 It is a schematic diagram of a structure of the eighth driving mechanism of the present invention.

The best mode of the present invention

The present invention will be further described below based on the drawings and specific embodiments.

From the picture 1 As shown, an annular workpiece inner hole chamfering device of the present invention includes a workpiece clamping and moving mechanism 100 And chamfering mechanism 200 , Workpiece clamping and moving mechanism 100 There are feeding mechanisms on the left and right sides respectively 300 And the feeding mechanism 400 .

From the picture 1 To map 6 As shown, the workpiece clamping and moving mechanism 100 Including clamping jaw assembly for clamping workpiece 1 And for making the jaw assembly 1 The first driving mechanism that moves in the left and right directions 11 , Chamfering mechanism 200 Including chamfer block 2 , The second drive mechanism twenty one And the third drive mechanism twenty two , The second drive mechanism twenty one Used to make chamfered blocks 2 Rotation, third drive mechanism twenty two Used to make chamfered blocks 2 Move in the up and down direction, chamfering block 2 Fixed plate on the lower side 3 , Gripper assembly 1 And chamfered blocks 2 Are located on the fixed plate 3 Above. Among them, the jaw assembly 1 Cylinder jaws, the first drive mechanism 11 It is a linear cylinder, the second drive mechanism twenty one Motor, the third drive mechanism twenty two It is a linear cylinder. Chamfered block 2 Fixed sleeve 25 , Fixed sleeve 25 Fixed to the second drive mechanism twenty one Chamfered block underneath the case 2 The plane where the lower edge is located is on the fixed sleeve 25 Below the plane where the lower end is located, the chamfering mechanism 200 Dust collection mechanism on the side 500 , Vacuum cleaner 500 With retractable suction end.

From the picture 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 As shown, the fixed plate 3 Has two upward openings to accommodate the workpiece 4 And for the support block 5 Pass slot 31 , Each placement slot 31 There is a chamfering block on the top 2 , Fixed plate 3 Has a rear side opening for positioning blocks 6 Locating slot 37 , Placement slot 31 With positioning slot 37 Connected, fixed plate 3 There is a fourth drive mechanism below 51 , Fixed plate 3 There is a fifth drive mechanism on the rear side 61 , The fourth drive mechanism 51 Used to make the support block 5 Move in the up and down direction, the fifth drive mechanism 61 Used to make positioning block 6 Along the positioning slot 37 Move and place the workpiece in the slot 5 The sides are touching. Fourth drive mechanism 51 And the fifth drive mechanism 61 All are linear cylinders.

Support block 5 The middle part has a positioning protrusion extending upward 52 , When the positioning block 6 In the fifth drive mechanism 61 When moving to the workpiece under the action of 6 With artifacts 4 Touch and make the workpiece 4 Inner hole wall and positioning protrusion 52 Surface contact. Support block 5 Cushion pad is fixed on the upper end 53 , Cushion 53 It is ring-shaped and surrounds the positioning protrusion 52 Circumferential outside, when the workpiece is placed on the cushion 53 When up, the workpiece 4 The upper end face is always on the positioning protrusion 52 Above the upper end face. Among them, the positioning block 6 Has a tool for working with 4 Contact surface 60 ,Contact surfaces 60 It has a curved structure that opens to the side of the placement slot.

From the picture 2 And figure 4 As shown, the jaw assembly 1 The number is two, each gripper assembly 1 All fixed to the sixth drive mechanism 12 Output end, sixth drive mechanism 12 For gripper components 1 The horizontal flip, where the sixth drive mechanism 12 It is a rotating cylinder. There is a support block in each placement slot 5 , Support block 5 Positioning bump 52 From the top 521 And the lower part 522 Composition, support block 5 Positioning bump 52 The upper part of 521 It has a tapered structure whose outer diameter gradually increases from top to bottom. Two gripper assembly 1 The distance between the two placement slots 31 The same distance between the first drive mechanism 11 Drive two gripper components at the same time 1 Synchronous movement. Among them, the workpiece clamping and moving mechanism 100 Also included for making the jaw assembly 1 Ninth driving mechanism moving forward and backward 19 , The sixth drive mechanism 12 Fixed to the ninth drive mechanism 19 Output terminal, two ninth drive mechanisms 19 Fixed to the first drive mechanism 11 Output end, ninth drive mechanism 19 It is a linear cylinder.

From the picture 2 , Figure 3 , Figure 5 , Figure 7 And figure 8 As shown, the fixed plate 3 With feeding agency 300 Conveyor board 7 , Conveyor board 7 Set along the front and back direction, fixed plate 3 Push plate 33 , Used to make the push plate 33 The seventh drive mechanism that moves in the left-right direction 34 , Push plate 33 Lower end face and fixed plate 3 The distance between the upper end faces is less than the thickness of a workpiece, push the plate 33 The middle part is provided with an accommodating gap that opens to the side of the conveying plate and is used to accommodate the workpiece 35 , Push plate 33 In the seventh drive mechanism 34 Move under the action to make the push plate 33 Accommodating gap 35 Located above the slot moved to the left. Among them, the seventh drive mechanism 34 It is a linear cylinder.

From the picture 8 As shown, the conveyor plate 7 The upper part is used to make sponge eggs 8 Eighth driving mechanism moving up and down 71 , Sponge egg 8 A structure with a thick middle and thin upper and lower ends, the eighth drive mechanism 71 Fixed block at the output 81 ,Fixed block 81 There are two oppositely arranged limit blocks on the lower side 82 , Limit block 82 There is a limit part at the lower end 83 , The limit part 83 With a limit gap that penetrates up and down and opens on the side, sponge egg 8 Restricted to two limit blocks 82 Limit 83 Between, and the lower part of the sponge egg is located in the limit gap, the sponge egg 8 The middle part is supported above the limit part. Eighth driving mechanism 71 Storage container on the side 72 , Storage container 72 The lower end is open and connected to one end of the hose, and the other end of the hose is connected to the sponge egg 8 Connection, limit block 82 With a through hole for the hose to pass through 84 .

From the picture 5 Shown, the third drive mechanism twenty two The output terminal is equipped with a connecting board twenty three , The second drive mechanism twenty one And buffer mechanism twenty four Fixed to the connecting plate twenty three Upper, buffer mechanism twenty four Including shell 241 ,case 241 Buffer contact block at the bottom 242 , Connecting plate twenty three With up and down through for the shell 241 Through hole, housing 241 The outer wall and the through hole are provided with a threaded structure that cooperates with each other; or the housing 241 It is provided with an external thread structure and matched with two nuts, the shell 241 With connecting plate twenty three Fix so that the connecting plate is located between the two nuts. Among them, the buffer mechanism twenty four It is a hydraulic buffer.

The invention has the advantage of ensuring the chamfering angle of the inner hole and the uniformity of the chamfering of the inner hole to improve the chamfering effect.

Claims (10)

1. A chamfering device for an inner hole of a ring-shaped workpiece, which is characterized by comprising a workpiece clamping and moving mechanism and a chamfering mechanism. The workpiece clamping and moving mechanism includes a clamping jaw assembly for clamping the workpiece and a A first driving mechanism that moves in a direction, the chamfering mechanism includes a chamfering block, a second driving mechanism, and a third driving mechanism. The second driving mechanism is used for rotating the chamfering block, and the third driving mechanism is used for rotating the chamfering block. The chamfering block is moved in the up and down direction. The lower side of the chamfering block is provided with a fixing plate, and the fixing plate has an upward opening to accommodate the workpiece and a placement groove for the support block to pass through, and the chamfering block is located above the placement groove, The fixing plate has a positioning slot with a side opening for the positioning block to extend into, the placement slot communicates with the positioning slot, a fourth driving mechanism is provided below the fixing plate, and a fifth driving mechanism is provided on the side of the fixing plate The fourth driving mechanism is used for moving the support block in the up and down direction, and the fifth driving mechanism is used for moving the positioning block along the positioning groove and contacting the side surface of the workpiece in the placement groove.
2. The device for chamfering the inner hole of an annular workpiece according to claim 1, wherein the middle of the support block has a positioning protrusion extending upward, and when the positioning block is moved under the action of the fifth driving mechanism, the positioning block The block is in contact with the workpiece and makes the wall of the inner hole of the workpiece contact with the positioning convex surface.
3. A ring-shaped workpiece inner hole chamfering device according to claim 2, wherein the clamping jaw assembly of the workpiece clamping and moving mechanism is fixed to the output end of the sixth driving mechanism, and the sixth driving mechanism is used for the clamping jaw assembly Flip horizontally, the fixed plate is provided with two placing grooves, each placing groove is provided with a chamfering block, each placing groove is provided with a supporting block, and the positioning protrusions on the supporting block are formed from the upper part. The upper part of the positioning protrusion of at least one support block has a tapered structure with an outer diameter gradually increasing from top to bottom; the number of the clamping jaw components is two, and the distance between the two clamping jaw components is equal to that of the two positions. The distance between the grooves is the same, the first driving mechanism drives the two clamping jaw assemblies to move synchronously; the workpiece clamping and moving mechanism also includes a ninth driving mechanism for moving the clamping jaw assemblies back and forth, and the sixth driving mechanism is fixed to the first Nine driving mechanism output ends, and two ninth driving mechanisms are fixed at the output end of the first driving mechanism.
4. The device for chamfering the inner hole of a ring-shaped workpiece according to claim 2 or 3, wherein a cushioning pad is fixed at the upper end of the support block, and the cushioning pad is annular and surrounds the circumferential outer side of the positioning protrusion.
5. The device for chamfering the inner hole of a ring-shaped workpiece according to claim 1, wherein the positioning block has a contact surface for contacting the workpiece, and the contact surface has a curved surface structure that opens to the side of the placement groove.
6. The device for chamfering the inner hole of an annular workpiece according to claim 1, wherein a conveying plate is provided between the fixed plate and the feeding mechanism, the conveying plate is arranged in the front-to-rear direction, and the fixed plate is provided with Push plate, the distance between the lower end surface of the push plate and the end surface of the fixed plate is less than the thickness of a workpiece, the push plate is provided with an accommodating notch that opens to the conveying plate side and is used for accommodating the workpiece, and the push plate is matched with a seventh The driving mechanism, the seventh driving mechanism drives the push plate to move, so that the accommodating notch of the push plate moves above a placement slot.
7. The device for chamfering the inner hole of a ring-shaped workpiece according to claim 6, wherein an eighth driving mechanism for moving the sponge eggs in the up and down direction is provided above the conveying plate, and the sponge eggs are thick in the middle and up and down. With a thin-end structure, the output end of the eighth drive mechanism is provided with a fixed block, two oppositely arranged limit blocks are arranged on the lower side of the fixed block, and a limit part is arranged at the lower end of the limit block. The part has a limit gap that penetrates up and down and is open on the side. The sponge egg is restricted between the limit parts of the two limit blocks, and the lower part of the sponge egg is located in the limit gap, and the middle part of the sponge egg is supported above the limit part. .
8. The device for chamfering the inner hole of an annular workpiece according to claim 6, wherein a storage container is provided on the side of the eighth driving mechanism, and the lower end of the storage container is opened and connected to one end of the hose, and the other One end is connected with the sponge egg, and the limiting block is provided with a through hole for the hose to pass through.
9. The device for chamfering the inner hole of an annular workpiece according to claim 1, wherein the output end of the third driving mechanism is provided with a connecting plate, the second driving mechanism and the buffer mechanism are fixed on the connecting plate, and the The buffer mechanism includes a housing, the lower end of the housing is provided with a buffer contact block, the connecting plate is provided with a through hole that penetrates up and down for the housing to pass through, and the outer wall of the housing and the through hole are provided with a threaded structure that cooperates with each other, Or the shell is provided with an external thread structure and matched with two nuts, and the shell is fixed with the connecting plate so that the connecting plate is located between the two nuts.
10. The device for chamfering the inner hole of a ring-shaped workpiece according to claim 1, wherein a fixing sleeve is provided outside the chamfering block, and the plane of the lower edge of the chamfering block is located below the plane of the lower end surface of the fixing sleeve. A dust suction mechanism is provided on the side of the chamfering mechanism, and the dust suction mechanism has a retractable dust suction end.