Assembly machine for the collar and screws of the cutting and grinding machine guard assembly

Abstract

The present invention discloses an assembly machine for the collar and screw of a cutter-grinding machine shield assembly, comprising an assembly seat and an electric screwdriver matched with the shield, and further comprising: a pushing mechanism for pushing the received collar to the assembly position with the screw, the pushing mechanism being located on one side of the assembly seat; a first positioning mechanism for applying an axial pressing force to the shield matched on the assembly seat, the first positioning mechanism being located on the other side of the assembly seat; a bearing seat for bearing the collar output by the pushing mechanism, the bearing seat being provided with a through hole for the screw to pass through, a retreat port for separation from the screw being also provided on the peripheral surface of the bearing seat, the bearing seat being connected to the pushing mechanism or the first positioning mechanism; a detection mechanism for detecting whether the screw is screwed into place; and a controller, the controller being electrically connected to the electric screwdriver and the detection mechanism, and when the controller receives a signal provided by the detection mechanism that the screw is screwed into place, the controller controls the electric screwdriver to stop working. The present invention can improve assembly efficiency.

Description

Technical Field

[0001] The invention relates to an assembling machine, in particular to an assembling machine for a clamping ring and a screw of a cutter and grinder guard assembly. Background Art

[0002] like Figure 1 The cutting and grinding machine shield assembly needs to assemble the clamp ring 2 and the screw 3 on the shield 1 as required. The current process is: first, the operator manually places the shield 1 on the positioning fixture and presses it, then places the clamp ring 2 on the hole position of the shield 1 to be assembled, and then holds the screw 3 and places it on the hole position of the shield 1, and then starts the electric screwdriver to rotate the screw 3 through the clamp ring and screw it into the nut 4 on the shield 1. Visually check that the end face of the screw 3 is flush with the nut 4 on the shield 1 and stop the electric screwdriver. Finally, loosen the positioning fixture, take out the assembled component and put it into the container.

[0003] Deficiencies: Manual visual inspection of whether the screw 3 is assembled in place has poor reliability and unstable quality; manually placing the protective cover 1 to position and tighten, manually taking and placing the clamp ring 2 to fix, manually taking and placing the screw 3, manually starting the electric screwdriver to screw in the screw 3, visually checking whether the screw is assembled in place, loosening the positioning tooling, taking the product, the production cycle is 30-35 seconds / piece, and the production efficiency is low. Summary of the invention

[0004] The invention provides an assembling machine for a clamping ring and a screw of a cutter-grinding machine shield assembly, which can improve the assembling efficiency.

[0005] The technical solution to achieve the above purpose is as follows:

[0006] An assembly machine for the collar and screws of a cutter-grinding machine guard assembly includes an assembly seat matched with the guard, an electric screwdriver, and also includes:

[0007] Pushing the received clamping ring to a pushing mechanism for assembling with the screw, the pushing mechanism being located at one side of the assembly seat;

[0008] A first positioning mechanism for applying an axial pressing force to the shield matched on the assembly seat, the first positioning mechanism being located on the other side of the assembly seat;

[0009] A bearing seat for bearing the clamping ring output by the pushing mechanism, the bearing seat is provided with a through hole for the screw to pass through, and a retreat opening for separation from the screw is also provided on the peripheral surface of the bearing seat, and the bearing seat is connected to the pushing mechanism or the first positioning mechanism;

[0010] A detection mechanism for detecting whether the screws are screwed into place;

[0011] The controller is electrically connected with the electric screwdriver and the detection mechanism. When the controller receives a signal from the detection mechanism indicating that the screw is screwed into place, the controller controls the electric screwdriver to stop working.

[0012] Since the assembly machine is provided with a pushing mechanism and a first positioning mechanism, the operations of taking, placing and positioning the clamp ring are saved; the assembly machine is provided with an assembly seat, which saves the operation of operating a hand-held shield assembly; the assembly machine is provided with a detection mechanism for screwing the screws into place, and a controller for controlling the electric screwdriver to automatically stop working, which saves the operation of visually checking whether the screws are in place during the assembly process, and the production cycle of the clamp ring and screw assembly of the protective cover component is shortened from the original 30 to 35 seconds per piece to 10 to 15 seconds per piece, and the production efficiency is increased by more than 2 times; the assembly machine is provided with a detection mechanism for screwing the screws into place, and a controller for controlling the electric screwdriver to automatically stop working, which avoids the failure of the screws to be assembled in place, and the product quality is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the cutter-grinding machine guard assembly;

[0014] Figure 2 A three-dimensional diagram of the assembly of the collar and screws of the cutter grinder guard assembly;

[0015] Figure 3 For Figure 2 A schematic diagram with some parts hidden on the basis;

[0016] Figure 4 It is a three-dimensional diagram of the material pushing mechanism;

[0017] Figure 5 is a schematic diagram of a bearing seat;

[0018] Figure 6 It is a schematic diagram of the cooperation between the first positioning mechanism, the assembly seat and the detection mechanism;

[0019] Figure 7 is a schematic diagram of a second positioning mechanism;

[0020] Markings in the accompanying drawings:

[0021] Protective cover 1, clamp ring 2, screw 3, nut 4;

[0022] Assembly seat 10, matching groove 10a, bearing seat 11, electric screwdriver 12, feeder 13, feed port 13a, discharge port 13c, make way groove 13d, linear drive 14, push plate 15, pressure plate 16, positioning block 17, first hinge seat 18, push-pull handle 19, connecting rod 20, second hinge seat 21, push rod 22, screening vibration plate 22a, slideway 22b, support 23, make way space 23a, swing arm 24, second connecting rod 25, second handle 26, screw 27, clamping nut 28, buffer head 29, detection mechanism 30, controller 31. DETAILED DESCRIPTION

[0023] Combine the following Figures 1 to 7 The present invention will be described.

[0024] The assembly machine for the collar and screw of the cutter-grinding machine shield assembly of the present invention comprises an assembly seat 10 matched with the shield 1, an electric screwdriver 12, a material pushing mechanism, a first positioning mechanism, a bearing seat 11, a detection mechanism, and a controller. The following describes each part and the relationship between them in detail:

[0025] The assembly seat 10 is provided with a matching groove 10a, and after the shield 1 is matched with the matching groove 10a, the assembly seat 10 supports the shield 1. The shape of the matching groove 10a matches the shape of the shield 1, so the matching groove 10a is an open groove, not an annular groove.

[0026] The pushing mechanism pushes the received clamp ring 2 to the position for assembly with the screw 3, that is, pushes the clamp ring 2 to the bearing seat 11, and the pushing mechanism is located on one side of the assembly seat 10. In this embodiment, the pushing mechanism includes a feeder 13 for receiving the clamp ring 2, a linear drive 14, and a pushing plate 15. The feeder 13 is provided with an inlet 13a, a feed passage (not shown in the figure), and a discharge port 13c. The feed passage is connected to the inlet 13a and the discharge port 13c respectively; the pushing plate 15 pushes the clamp ring 2 entering the feed passage, the pushing plate 15 is connected to the linear drive 14, and the pushing plate 15 cooperates with the feed passage.

[0027] Preferably, the discharge port 13c is located at one end of the feeder 13, and a clearance groove 13d cooperating with the screw is provided at one end of the feeder 13. During the assembly of the screw 3, the screw 3 passes through the retaining ring 2 and the clearance groove 13d. The clearance groove 13d can, on the one hand, satisfy the requirement of pushing the retaining ring 2 to the position for assembly with the screw 3, and on the other hand, avoid the feeder 13 from interfering with the screw 3 or obstructing the screw 3, which would make it impossible to assemble the screw 3.

[0028] An insertion port is provided at the other end of the feeder 13, and the insertion port is used for the push plate 15 to enter the feed channel, and the feed inlet 13a is located on the side of the feeder 13. When the clamp ring 2 enters the feed channel through the feed inlet 13a, the linear drive 14 drives the push plate 15 to move along the feed channel, and the push plate 15 pushes the clamp ring 2 to move along the feed channel, and finally pushes the clamp ring 2 out of the discharge port 13c to the position for assembly with the screw 3.

[0029] The first positioning mechanism applies an axial pressing force to the shield 1 matched on the assembly seat 10, and the first positioning mechanism is located on the other side of the assembly seat 10; preferably, the first positioning mechanism is opposite to the material pushing mechanism. The first positioning mechanism includes a pressing plate 16, a positioning block 17 matched with the clamping ring 2 to limit the movement of the clamping ring 2, and a first linear drive driving the pressing plate 16 to move, the positioning block 17 is fixed to the pressing plate 16, and the first linear drive is connected to the pressing plate 16.

[0030] The first linear drive includes a first articulated seat 18, a push-pull handle 19, a connecting rod 20, a second articulated seat 21, and a push rod 22 connected to the pressure plate 16. The push-pull handle 19 is articulated to the first articulated seat 18, and one end of the connecting rod 20 is articulated to the push-pull handle 19; the second articulated seat 21 is articulated to the other end of the connecting rod 20; the push rod 22 is slidably matched with the first articulated seat 18, and the push rod 22 is connected to the second articulated seat 21.

[0031] When the first positioning mechanism is needed to press the shield 1 onto the assembly seat 10, the push-pull handle 19 is manually driven to rotate, and the push-pull handle 19 moves the connecting rod 20, and the connecting rod 20 pushes the second hinge seat 21 to move in the direction of the assembly seat 10, thereby feeding the push rod 22 toward the assembly seat 10, and the push rod 22 pushes the pressing plate 16 to act on the axial end face of the shield 1, thereby pressing the shield 1 onto the assembly seat 10. In addition: the bearing seat 11 and the positioning block 17 are fed together with the pressing plate 16, and when the shield 1 is pressed onto the assembly seat 10, the bearing seat 11 is matched with the discharge port 13c.

[0032] The bearing seat 11 bears the clamping ring 2 output by the pushing mechanism. The bearing seat 11 is provided with a through hole 11a for the screw 3 to pass through. The through hole 11a is arranged along the axial direction of the bearing seat 11. The circumferential surface of the bearing seat 11 is also provided with a retreat opening 11b for separation from the screw 3. The retreat opening 11b is arranged along the radial direction of the bearing seat 11. The bearing seat 11 is connected to the pushing mechanism or the first positioning mechanism. The bearing seat 11 is preferentially connected to the first positioning mechanism. The bearing seat 11 is connected to the positioning block 17, so that the bearing seat 11 can move with the first positioning mechanism.

[0033] The detection mechanism 30 detects whether the screw 3 is screwed into place, and the detection mechanism 30 preferably uses a distance sensor. The controller 31 is electrically connected to the electric screwdriver 12 and the detection mechanism 30. When the controller 31 receives a signal from the detection mechanism 30 indicating that the screw 3 is screwed into place, the controller 31 controls the electric screwdriver 12 to stop working.

[0034] The distance sensor corresponds to the inner hole of the nut 4 on the shield 1, and the position of the detection mechanism 30 is unchanged. When the screw 3 is fed into the nut 4 on the shield 1, the distance between the end of the screw 3 and the detection mechanism 30 is reduced. When it is reduced to a set value, the controller 31 controls the electric screwdriver 12 to stop working, and the screw 3 is assembled in place. Through the function of the detection mechanism 30, it is possible to avoid manually observing whether the screw 3 is installed in place or exceeds the maximum installation position, which is conducive to saving time and improving the accuracy of installation.

[0035] The present invention also includes a feeding mechanism, which cooperates with the pushing mechanism to automatically move the clamp ring 2 to the pushing mechanism. The feeding mechanism includes a screening vibration plate 22a and a slide 22b, one end of the slide 22b cooperates with the screening vibration plate 22a, the other end of the slide 22b cooperates with the pushing mechanism, and the other end of the slide 22b cooperates with the feed inlet 13a of the pushing mechanism. The height position of one end of the slide 22b is higher than the height position of the other end of the slide 22b, so that the slide 22b is arranged in an inclined state with one end high and the other end low.

[0036] A number of collars 2 are placed in the screening vibration plate 22a. The screening vibration plate 22a is used to move the collars 2 in an orderly manner. The screening vibration plate 22a is an existing device and will not be described in detail here. The collars 2 output from the screening vibration plate 22a enter the slideway 22b. Since the slideway 22b is arranged obliquely, the collars 2 move along the slideway 22b to the feed port 13a and enter the feed passage, so that the collars 2 can be automatically loaded.

[0037] The present invention also includes a second positioning mechanism for applying a radial pressing force to the shield 1 matched on the assembly seat 10, the second positioning mechanism includes a support 23, a swing arm 24, a second connecting rod 25, a second handle 26, and a positioning assembly, a clearance space 23a is provided on the support 23, one end of the swing arm 24 is hinged to the support 23, one end of the second connecting rod 25 is hinged to the swing arm 24, the second handle 26 is hinged to the support 23, and the second handle 26 is also hinged to the other end of the second connecting rod 25; the positioning assembly is fixed to the other end of the swing arm 24.

[0038] The positioning assembly includes a screw 27 , a clamping nut 28 , and a buffer head 29 . The screw 27 passes through the swing arm 24 . The clamping nut 28 is threadedly connected to the screw 27 to clamp the screw 27 on the swing arm 24 . The buffer head 29 cooperates with the shield 1 , and the buffer head 29 is connected to the screw 27 .

[0039] When the buffer head 29 is required to generate pressure on the shield 1, the second handle 26 is rotated (for example, in the clockwise direction in the figure), and the second handle 26 drives the swing arm 24 to rotate (for example, clockwise) through the second connecting rod 25, so that the buffer head 29 is pressed on the shield 1. When the buffer head 29 needs to be separated from the shield 1, the second handle 26 is rotated in the opposite direction (for example, in the counterclockwise direction in the figure), and the second handle 26 drives the swing arm 24 to rotate in the opposite direction (for example, counterclockwise) through the second connecting rod 25, so that the buffer head 29 is separated from the shield 1.

[0040] The assembly process of the collar and screws of the cutter grinder guard assembly using the above assembly machine is as follows:

[0041] S1, make the shield 1 fit on the assembly seat 10;

[0042] S2, the first positioning mechanism works, and the first positioning mechanism applies an axial pressing force to the shield 1 to press the shield 1 onto the assembly seat 10;

[0043] S3, the pushing mechanism pushes the received clamping ring 2 onto the bearing seat 11;

[0044] S4, make the screw 3 match the hole on the shield 1, use the electric screwdriver 12 to make the screw 3 pass through the collar 2 and screw it into the nut 4;

[0045] S5, the detection mechanism 30 detects the position of the nut 4 from time to time, and the detection mechanism 30 provides the detection result to the controller 31 from time to time. When the screw 3 is screwed into the specified position by the electric screwdriver 12, the controller 31 controls the electric screwdriver 12 to stop working;

[0046] S6, the first positioning mechanism is reset, and the shield 1 is removed from the assembly seat 10.

[0047] In the above process, the shield 1 is matched on the assembly seat 10, the beat is 1s, the first positioning mechanism is pushed to apply axial compression force to the shield 1, the beat is 1s, the left hand takes the screw 3 and puts it in the hole of the shield 1, the right hand takes the electric screwdriver 12 and screws the screw 3 into the shield 1, the beat is 4s, the electric screwdriver 12 automatically stops after the screw is screwed into place, the first positioning mechanism is pushed to reset to release the compression of the shield 1, the shield 1 is taken out and put into the container tray, the beat is 3s. The beat to complete an assembly operation is: 1+1+4+3=9s. The actual beat involving the familiarity of manual operation is 9 to 15s.

[0048] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, rather than limiting them, and certainly not limiting the patent scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. An assembly machine for a collar and a screw of a cutter-grinding machine shield assembly, comprising an assembly seat (10) matched with a shield (1) and an electric screwdriver (12), characterized in that: Also includes: Pushing the received clamping ring (2) to a pushing mechanism for assembly with the screw (3), the pushing mechanism being located on one side of the assembly seat (10); The material pushing mechanism comprises: a material feeder (13) for receiving the clamping ring (2); the material feeder (13) is provided with a material inlet (13a), a material feed passage, and a material outlet (13c); the material feed passage is respectively connected to the material inlet (13a) and the material outlet (13c); Linear drive (14); A push plate (15) for pushing the clamping ring (2) into the material transfer channel, the push plate (15) being connected to the linear drive (14), and the push plate (15) cooperating with the material transfer channel; The discharge port (13c) is located at one end of the feeder (13), a recess (13d) cooperating with the screw is provided at one end of the feeder (13), and the feed port (13a) is located at a side of the feeder (13); A first positioning mechanism for applying an axial pressing force to the shield (1) fitted on the assembly seat (10), the first positioning mechanism being located on the other side of the assembly seat (10); The first positioning mechanism comprises: a pressing plate (16); a positioning block (17) cooperating with the clamping ring (2) to limit the movement of the clamping ring (2), the positioning block (17) being fixed to the pressing plate (16); A first linear drive for driving the pressing plate (16) to move, the first linear drive being connected to the pressing plate (16); A bearing seat (11) for bearing the clamping ring (2) output by the material pushing mechanism, the bearing seat (11) being provided with a through hole (11a) for the screw (3) to pass through, and a retreat opening (11b) for separating from the screw (3) being provided on the peripheral surface of the bearing seat (11), the bearing seat (11) being connected to the material pushing mechanism or the first positioning mechanism; A detection mechanism for detecting whether the screw (3) is screwed into place; The controller is electrically connected to the electric screwdriver (12) and the detection mechanism. When the controller receives a signal from the detection mechanism indicating that the screw has been screwed into place, the controller controls the electric screwdriver (12) to stop working.

2. The assembly machine for the collar and screws of the cutter and grinder guard assembly according to claim 1, characterized in that: The first linear drive comprises: a first articulated seat (18); A push-pull handle (19), the push-pull handle (19) being hinged to the first hinge seat (18); A connecting rod (20), one end of which is hinged to the push-pull handle (19); A second hinged seat (21), the second hinged seat (21) being hingedly connected to the other end of the connecting rod (20); A push rod (22) is connected to the pressure plate (16), the push rod (22) is slidably matched with the first hinge seat (18), and the push rod (22) is connected to the second hinge seat (21).

3. The assembly machine for the collar and screws of the cutter and grinder guard assembly according to claim 1, characterized in that: It also includes a feeding mechanism, which cooperates with the pushing mechanism to automatically move the clamping ring (2) onto the pushing mechanism.

4. The assembly machine for the collar and screws of the cutter and grinder guard assembly according to claim 3, characterized in that: The feeding mechanism comprises a screening vibration plate (22a) and a slideway (22b), one end of the slideway (22b) cooperates with the screening vibration plate (22a), the other end of the slideway (22b) cooperates with the material pushing mechanism, the other end of the slideway (22b) cooperates with the material inlet (13a) of the material pushing mechanism, and the height position of one end of the slideway (22b) is higher than the height position of the other end of the slideway (22b).

5. The assembly machine for the collar and screws of the cutter and grinder guard assembly according to claim 1, characterized in that: It also includes a second positioning mechanism for applying a radial pressing force to the shield (1) fitted on the assembly seat (10).

6. The assembly machine for the collar and screws of the cutter grinder guard assembly according to claim 5, characterized in that: The second positioning mechanism comprises: a support (23), the support (23) being provided with a clearance space; A swing arm (24), one end of which is hinged to the support (23); A second connecting rod (25), one end of the second connecting rod (25) being hinged to the swing arm (24); A second handle (26), the second handle (26) being hinged to the support (23), and the second handle (26) being also hinged to the other end of the second connecting rod (25); A positioning assembly is fixed to the other end of the swing arm (24).

7. The assembly machine for the collar and screws of the cutter grinder guard assembly according to claim 6, characterized in that: The positioning assembly comprises: a screw rod (27); the screw rod (27) passes through the swing arm (24); A clamping nut (28), wherein the clamping nut (28) is threadedly connected to the screw rod (27) to clamp the screw rod (27) on the swing arm (24); A buffer head (29) matched with the shield (1) is connected to the screw rod (27).

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