Gun rack spherical hoop grinding device and method

Abstract

According to the grinding device and method for the gun rack spherical hoop, the labor intensity of an operator is reduced, and the assembling efficiency is improved. The gun rack spherical hoop comprises an upper hoop body, a spherical shaft and a lower hoop body, the outer spherical surface of the spherical shaft is matched with the inner spherical surface of the upper hoop body and the inner spherical surface of the lower hoop body, the upper hoop body and the lower hoop body are connected through an adjusting bolt, and the ground surfaces include the inner spherical surface of the upper hoop body, the inner spherical surface of the lower hoop body and the outer spherical surface of the spherical shaft. The connecting end of the spherical shaft penetrates through the upper hoop to be connected with the variable-axis rotating mechanism, the lower hoop is connected with the left-right swinging mechanism, and a limiting gasket is arranged between the upper hoop and the lower hoop.

Description

Technical Field

[0001] The invention relates to the technical field of firearm assembly, and in particular to a grinding device and method for a gun rack spherical clamp. Background Art

[0002] A 12.7mm heavy machine gun with a total weight of 26.5 kg. It is the lightest heavy machine gun in the world. The gun is designed to be mainly flat-fired, used to kill enemy cluster targets, suppress light firepower points, damage light armored targets, and shoot at low-altitude targets such as armed helicopters. The gun frame adopts a spherical capstan structure, and the cradle and bracket are integrated designs. The height and direction machines can be tightened at the same time. It has a simple structure, small size, and easy operation. Due to its light weight and easy mobility, it can be equipped to the battalion and company levels to enhance the suppressive firepower of these troops. The gun frame consists of a tripod, an upper clamp, a lower clamp, a spherical shaft, a swivel mount, and fastening standard parts. Loosen the clamping handle, and the gun frame can rotate 360 ​​degrees and swing in the height direction with the upper clamp. It can quickly shoot at moving targets. When the clamping handle is locked, it can accurately aim at fixed targets. Therefore, the grinding and assembly quality of the upper clamp, lower clamp and spherical shaft directly affects the shooter's maneuverability, flexibility and shooting accuracy when using the machine gun.

[0003] According to the assembly process requirements, the moving surface needs to be ground before assembly to make the mating surface contact evenly and move smoothly. The grinding method currently used is: fix the upper clamp on a special fixture, install the spherical shaft, lower clamp, adjusting bolt, auxiliary grinding handle and spherical shaft with threaded connection, and evenly apply diamond sand (240#-300#), polishing paste, and kerosene on the working surface of the upper clamp, spherical shaft, and lower clamp, and the operator grinds manually. During the grinding process, gradually tighten the adjusting bolt to press the upper and lower clamps to the position of the limit gasket. At the same time, gradually adjust the fixing bolt to make the gap between the upper and lower clamps to 4-6mm. After grinding, disassemble the parts and clean them with a special cleaning agent. Then check that the upper and lower clamps should have 80% of the contact surface within 10mm from the mouth. If it is not reached, it should be re-ground. This grinding method has low working efficiency, high labor intensity for operators, and is not suitable for the production mode of mass assembly. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a grinding device and method for a gun rack spherical clamp, thereby reducing the labor intensity of the operator and improving the assembly efficiency.

[0005] The object of the present invention is achieved in that:

[0006] A grinding device for a gun rack spherical clamp comprises an upper clamp, a spherical shaft and a lower clamp. The outer spherical surface of the spherical shaft matches the inner spherical surfaces of the upper clamp and the lower clamp. The upper clamp and the lower clamp are connected by adjusting bolts. The grinding surfaces are the inner spherical surface of the upper clamp, the inner spherical surface of the lower clamp and the outer spherical surface of the spherical shaft. The grinding device comprises a rotating mechanism around a variable axis and a left-right swinging mechanism.

[0007] The variable axis rotation mechanism comprises a vertical drilling machine main shaft, a Morse taper shaft, an upper connecting sleeve, and a lower connecting sleeve connected in sequence from top to bottom. The vertical drilling machine main shaft is a rotation power source of the variable axis rotation mechanism. The upper connecting sleeve and the lower connecting sleeve are hinged through a hinge joint. When the vertical drilling machine main shaft drives the Morse taper shaft to rotate, the Morse taper shaft drives the upper connecting sleeve to rotate. The upper connecting sleeve transmits the rotational motion of the main shaft to the lower connecting sleeve through the hinge joint. When the axis of the lower connecting sleeve and the axis of the upper connecting sleeve have an angular offset, the hinge joint can still drive the lower connecting sleeve to rotate along the axis of the lower connecting sleeve.

[0008] The left-right swing mechanism comprises a connecting seat, a reducer, a T-slot plate, a connecting rod, and a swing seat. A support is fixed to each of the left and right ends of the connecting seat. The reducer is installed on one support. The swing seat is hinged to the other support through a swing seat rotating shaft. The reducer drives the T-slot plate to rotate. A T-slot is radially provided on the T-slot plate. A T-block is installed in the T-slot. The T-block can adjust the position along the T-slot and lock it. The T-block is hinged to the connecting rod through a connecting screw. The free end of the swing seat is hinged to the connecting rod through a connecting rod shaft. When the reducer rotates, the T-slot plate drives the swing seat to swing left and right with the swing seat rotating shaft as the center through the T-block and the connecting rod.

[0009] The connecting end of the spherical shaft passes through the upper clamp and is fixedly connected with the lower connecting sleeve. The lower clamp is fixed on the swing seat. A limiting gasket is arranged between the upper clamp and the lower clamp.

[0010] Preferably, one end of the connecting screw rod passes through the T-shaped block and is tightly fixed on the T-slot plate to lock the position of the T-shaped block, and the other end of the connecting screw rod is hinged to the connecting rod.

[0011] Preferably, the T-block is located at a position of the T-slot such that: when the T-slot on the T-slot plate driven by the reducer is in a vertical state, the upper clamp, the spherical shaft and the lower clamp are coaxial, and the swing seat can swing symmetrically left and right, so that the spherical shaft can be evenly ground;

[0012] When the T-shaped block is located at other positions, the angle of the left and right swing center line of the swing seat deviating from the vertical is less than 20°.

[0013] Preferably, the spherical shaft and the lower connecting sleeve are positioned and connected with directional keys and connecting screws to make the spherical shaft and the lower connecting sleeve coaxial; the upper connecting sleeve is sleeved on the lower end of the Morse tapered shaft and fixedly connected with a connecting key and screws, and the upper end of the Morse tapered shaft cooperates with the tapered hole of the machine tool spindle and is locked by a pin shaft.

[0014] Preferably, the hinged joint is fixedly provided at the bottom of the upper connecting sleeve, and the lower connecting sleeve is hinged to the hinged joint via a connecting pin.

[0015] Preferably, the spindle of the vertical drilling machine can realize forward rotation, reverse rotation, and pause instructions, and the rotation speed can be adjusted; the rotation speed of the reducer can be adjusted, and the reducer is provided with an emergency stop switch.

[0016] A working method of a grinding device for a gun rack spherical clamp,

[0017] Apply diamond sand, polishing paste and abrasive evenly on the working surfaces of the upper hoop, spherical shaft and lower hoop;

[0018] Assemble the gun mount ball clamp;

[0019] The vertical drilling machine spindle drives the spherical shaft to rotate clockwise or counterclockwise through the Morse taper shaft, the upper connecting sleeve and the lower connecting sleeve, so as to realize the grinding of the spherical shaft and the upper clamp and the lower clamp within the range of degrees perpendicular to the rotation axis; during the grinding process, the adjusting bolt is gradually tightened to prevent the upper clamp and the lower clamp from locking;

[0020] Turn on the reducer, which drives the T-slot plate, connecting rod and rocking seat to realize the reciprocating swing of the rocking seat in the plane. The lower connecting sleeve follows the swing. The rotation of the vertical drilling machine spindle is transmitted to the lower connecting sleeve through the hinge joint. The lower connecting sleeve rotates with the vertical drilling machine spindle and follows the swing of the rocking seat at the same time. At this time, the rotational motion of the vertical drilling machine spindle and the swing of the rocking seat run synchronously, and the two motion trajectories of rotation and swing are realized at the same time. During the grinding process, gradually tighten the adjusting bolt to prevent the clamp from locking, and lubricate the spherical shaft.

[0021] Preferably, the swing angle of the swing seat is adjusted by adjusting the positional relationship between the connecting rod and the T-slot plate, and the swing angle satisfies the maximum elevation and depression angle of the gun mount.

[0022] Preferably, during the grinding process, the distance between the upper clamp and the lower clamp is ensured to be greater than the thickness of the limiting gasket.

[0023] Preferably, after grinding is completed, the gun frame spherical clamp is disassembled and cleaned, and then checked. If qualified, there is more than 80% contact surface within 10 mm from the mouth of the upper clamp and the lower clamp.

[0024] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0025] The present invention designs a grinding device, which drives the upper clamp, the spherical shaft and the lower clamp to make circumferential motion around the center of the spherical shaft, and drives the lower clamp to make left and right swing motion, and adopts mechanical equipment grinding to replace the traditional manual grinding method, providing a spherical clamp grinding method with stable quality, simple operation and high efficiency, reducing the labor intensity of the operator and improving the assembly efficiency.

[0026] The mechanical grinding method of the gun frame spherical clamp includes connecting the lower clamp with the grinding equipment, connecting the spherical shaft with the main shaft of the vertical drilling machine, adjusting the gap between the upper clamp and the lower clamp, and the reduction box driving the grinding equipment to swing back and forth through the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2-4 It is a schematic diagram of the working process of the present invention;

[0029] Figure 5 It is a schematic diagram of the swing seat of the present invention.

[0030] Reference numerals

[0031] In the figure: 1. spindle of vertical drilling machine; 2. Morse taper shaft; 3. upper connecting sleeve; 4. lower connecting sleeve; 5. upper clamp; 6. lower clamp; 7. swing seat; 8. connecting rod shaft; 9. swing seat rotating shaft; 10. hinge head; 11. connecting screw; 12. spherical shaft; 13. limit gasket; 14. reducer; 15. connecting rod; 16. T-slot plate; 17. connecting seat; 18. clamp connecting pin; 19. adjusting bolt; 20. T-block; 21. connecting screw; 22. connecting key; 23. connecting pin; 24. directional key; 25. pin. DETAILED DESCRIPTION

[0032] See also Figure 1 A grinding device for a gun rack spherical clamp, the grinding object of which is the inner spherical surface of the upper clamp 5, the inner spherical surface of the lower clamp 6, and the outer spherical surface of the spherical shaft 12 of the gun rack spherical clamp. The gun rack spherical clamp includes an upper clamp 5, a spherical shaft 12, a lower clamp 6, and a limit washer 13. The upper clamp 5 and the lower clamp 6 are connected by an adjusting bolt 19, and a limit washer 13 is provided between the upper clamp 5 and the lower clamp 6. The outer spherical surface of the spherical shaft 12 matches the inner spherical surface of the upper clamp 5 and the lower clamp 6, and the connecting end of the spherical shaft 12 passes through the upper clamp 5.

[0033] See also Figure 1A grinding device for a gun rack ball clamp includes a variable axis rotation mechanism and a left-right swing mechanism. The variable axis rotation mechanism includes a vertical drilling machine spindle 1, a Morse taper shaft 2, an upper connecting sleeve 3, and a lower connecting sleeve 4. The vertical drilling machine spindle 1 is a rotational power source for the variable axis rotation mechanism. There is a hinge joint between the upper connecting sleeve 3 and the lower connecting sleeve 4. When the vertical drilling machine spindle 1 drives the Morse taper shaft to rotate, the Morse taper shaft drives the upper connecting sleeve 3 to rotate, and the upper connecting sleeve 3 transmits the rotational motion of the spindle to the lower connecting sleeve 4 through the hinge joint 10. The hinge joint 10 can still drive the lower connecting sleeve 4 to rotate along the axis of the lower connecting sleeve when the axis of the lower connecting sleeve 4 and the axis of the upper connecting sleeve 3 are angularly offset.

[0034] See also Figure 1 The left and right swing mechanism includes a connecting seat 17, a reducer 14, a T-slot disc 16, a connecting rod 15, and a swing seat 7. A support is fixed on each of the left and right ends of the connecting seat 17, a reducer 14 is installed on the right end support, and the swing seat 7 is hinged on the left support through the swing seat rotating shaft 9. The reducer 14 drives the T-slot disc 16 to rotate. The T-slot disc 16 is provided with a T-slot in the radial direction, and a T-shaped block 20 is installed in the T-slot. The T-shaped block 20 is hinged to the connecting rod 15 through a connecting screw 21. The free end of the swing seat 7 is hinged to the connecting rod 15 through a connecting rod shaft 8. When the reducer rotates, the T-slot disc 16 drives the swing seat 7 to swing in a circle with the swing seat rotating shaft 9 as the center through the T-shaped block 20 and the connecting rod 13.

[0035] See also Figure 1 , Figure 2 A connection between a grinding device of a gun rack spherical clamp and a gun rack spherical clamp is that the connecting end of the spherical shaft 12 passes through the upper clamp 5 and is fixed to the lower connecting sleeve 4 by a connecting screw 11. The lower clamp 6 is fixed to the swing seat 7 by a clamp connecting pin 18. The upper clamp 5 and the lower clamp 6 are connected by an adjusting bolt 19. A limiting gasket 13 is provided between the upper clamp 5 and the lower clamp 6. The outer spherical surface of the spherical shaft 12 cooperates with the inner spherical surfaces of the upper clamp 5 and the lower clamp 6.

[0036] See also Figure 1 The T-shaped block 20 is fixed and locked with the T-slot plate 16 by connecting the screw 21, and the connecting screw 21 hinges the connecting rod 15 and the T-slot plate 16 together. The position of the T-shaped block 20 in the T-slot is adjusted to realize the position of the connecting rod 15 in the T-slot plate 16.

[0037] See also Figure 1, the T-block 20 is located at a position of the T-slot that satisfies: when the T-slot on the T-slot plate 16 driven by the reducer 14 is in a vertical state, the upper clamp 5, the spherical shaft 12, and the lower clamp 6 are coaxial, and the rocking seat 7 can swing symmetrically left and right, so that the spherical shaft 12 can be evenly ground; by adjusting the position of the connecting rod 15 and the T-slot plate 16, the swing angle of the rocker 8 is adjusted. When the T-block 20 is located at other positions, the angle at which the left and right swing center line of the rocking seat 7 deviates from the vertical is less than 20°.

[0038] See also Figure 2 , the spherical shaft 12, and the lower connecting sleeve 4 are made coaxial with the directional key 24 and the connecting screw 11; the upper connecting sleeve 3 is sleeved on the lower end of the Morse tapered shaft 2 and fixedly connected with the connecting key 22 and the screw, and the upper end of the Morse tapered shaft 2 cooperates with the tapered hole of the machine tool spindle 1 and is locked by the pin shaft 25.

[0039] The bottom of the upper connecting sleeve 3 is provided with an articulated joint 10, and the lower connecting sleeve 4 is articulated with the articulated joint 9 through a connecting pin 23. The vertical drilling machine spindle 1 can realize forward rotation, reverse rotation, and pause instructions, and the speed can be adjusted. The speed of the reducer 14 can be adjusted, and the reducer 14 is provided with an emergency stop switch.

[0040] A working method of a grinding device for a gun rack spherical clamp:

[0041] During operation, the working surfaces of the matching upper hoop 5, spherical shaft 12 and lower hoop 6 are evenly coated with abrasives prepared by diamond sand, polishing paste, kerosene and mechanical lubricating oil to play a grinding and lubricating role;

[0042] Assemble the gun mount ball clamp;

[0043] The connecting end of the spherical shaft 12 is sequentially passed through the upper hoop 5 and fixed to the lower connecting sleeve 4 by the connecting screw 11. The lower hoop 6 is fixed to the swing seat 7 by the hoop connecting pin 18. The upper hoop 5 and the lower hoop 6 are connected by the adjusting bolt 19. A limiting gasket 13 is provided between the upper hoop 5 and the lower hoop 6. The outer spherical surface of the spherical shaft 12 is matched with the inner spherical surface of the upper hoop 5 and the lower hoop 6.

[0044] The vertical drilling machine spindle 1 drives the spherical shaft 12 to rotate clockwise or counterclockwise through the Morse taper shaft 2, the upper connecting sleeve 3, and the lower connecting sleeve 4, so as to grind the spherical shaft 12 and the upper clamp 5 and the lower clamp 6 within a range of 360° perpendicular to the rotation axis; during the grinding process, the adjusting bolt 19 is gradually tightened to prevent the clamp from being locked. Before grinding, the inner spherical surface of the upper clamp 5 and the inner spherical surface of the lower clamp 6 are evenly coated with a specially prepared grinding agent to ensure that the outer spherical surface of the spherical shaft 12 is lubricated during grinding;

[0045] Turn on the reducer 14, the reducer 14 will drive the T-slot plate 16, the connecting rod 15, and the swing seat 7 to realize the planar reciprocating swing of the swing seat 7, and the lower connecting sleeve 4 follows the swing. The rotation of the vertical drilling machine spindle 1 is transmitted to the lower connecting sleeve 4 through the hinge head 9. The lower connecting sleeve 4 rotates with the vertical drilling machine spindle 1 and follows the swing of the swing seat 7. At this time, the rotation movement of the vertical drilling machine spindle 1 and the swing of the swing seat run synchronously, and the two motion trajectories of rotation and swing are realized at the same time. During the grinding process, the adjusting bolt 19 is gradually tightened to prevent the clamp from locking, and the spherical shaft 12 is lubricated.

[0046] 13. The working method of the grinding device of the gun mount spherical clamp according to claim 12 is characterized in that: by adjusting the positions of the connecting rod 15 and the T-slot plate 16, the swing angle of the swing seat 7 is adjusted, and the swing angle satisfies the maximum angle of the gun mount to achieve the elevation and depression angle.

[0047] During the grinding process, ensure that the distance between the upper clamp and the lower clamp is greater than the thickness of the limiting gasket 13.

[0048] After grinding, remove the gun mount spherical clamp and clean it, then check it. If it is qualified, there should be more than 80% contact surface within 10mm from the mouth of the upper and lower clamps.

[0049] The functions of each part and the assembly sequence are explained as follows.

[0050] 1. Evenly apply the abrasive prepared by diamond sand, polishing paste, kerosene and mechanical lubricating oil on the working surfaces of the matching upper clamp 5, spherical shaft 12 and lower clamp 6.

[0051] 2. Connect the matching upper hoop 5, spherical shaft 12, and lower hoop 6 with adjusting bolts 19, and then install the lower hoop 6 correctly on the swing seat 7 of the mechanical grinding equipment, insert the hoop connecting pin 18, and then the lower hoop is fixed on the swing seat. The installation is simple and convenient.

[0052] 3. Fix the spherical shaft 12 and the lower connecting sleeve 4 with the directional key 24 and the connecting screw 11. Connect the Morse taper shaft 2 and the upper connecting sleeve 3 with the connecting key 22 and the M10×25 screw. The Morse taper shaft 2 is connected to the tapered hole of the machine tool spindle 1. Insert the pin 25 to prevent slipping.

[0053] 4. The power controller switch of the vertical drilling machine spindle 1 can realize the forward, reverse and pause instructions, and the speed can be adjusted as needed. Start the spindle power controller switch, and the vertical drilling machine spindle 1 will drive the spherical shaft 12 to rotate clockwise or counterclockwise, which is simple and convenient to operate. The grinding of the spherical shaft 12 and the upper clamp 5 and the lower clamp 6 within a range of 360° is successfully achieved. At this time, the grinding has begun. During the grinding process, gradually tighten the adjusting bolt 19, but not too hard to prevent the clamp from locking, and add the prepared abrasive to the spherical shaft 12 for lubrication in time. In this process, grinding in both positive and negative directions can be performed at any time as needed to improve the quality of grinding.

[0054] 5. After the vertical drilling machine spindle 1 rotates for a few minutes, turn on the reducer 14 controller switch. At this time, the reducer 14 will drive the T-slot plate 16, the connecting rod 15, and the swing seat 7 to achieve reciprocating left and right swings. At this time, the rotation of the vertical drilling machine spindle 1 and the swing of the swing seat are synchronized. The speed of the reducer 14 can also be adjusted appropriately, and the speed can be adjusted in real time according to needs. An emergency stop switch is also provided.

[0055] 6. By adjusting the position of the connecting rod 15 and the T-slot plate 16, the swing angle required by the process can be achieved, and this angle is the maximum angle that satisfies the gun frame to achieve the elevation and depression angle. As shown in Figures (2, 3), the two motion trajectories of rotation and swing can be achieved at the same time. In this process, the prepared abrasive should also be added to the spherical shaft 12 for lubrication in a timely manner, and the adjusting bolt 19 should be gradually adjusted to make the gap between the upper and lower clamps larger than the thickness of the limit gasket, and grind to 4-6mm.

[0056] 8. After grinding, disassemble the parts and clean them with a special cleaning agent. Then check that there should be 80% contact surface within 10mm from the mouth of the upper and lower clamps.

[0057] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A grinding device for a gun rack spherical clamp, the gun rack spherical clamp comprises an upper clamp, a spherical shaft, and a lower clamp, the outer spherical surface of the spherical shaft matches the inner spherical surface of the upper clamp and the lower clamp, the upper clamp and the lower clamp are connected by adjusting bolts, the grinding surface is the inner spherical surface of the upper clamp, the inner spherical surface of the lower clamp, and the outer spherical surface of the spherical shaft, characterized in that: The grinding device includes a variable axis rotating mechanism and a left-right swinging mechanism. The variable axis rotation mechanism comprises a vertical drilling machine main shaft, a Morse taper shaft, an upper connecting sleeve, and a lower connecting sleeve connected in sequence from top to bottom. The vertical drilling machine main shaft is a rotation power source of the variable axis rotation mechanism. The upper connecting sleeve and the lower connecting sleeve are hinged through a hinge joint. When the vertical drilling machine main shaft drives the Morse taper shaft to rotate, the Morse taper shaft drives the upper connecting sleeve to rotate. The upper connecting sleeve transmits the rotational motion of the main shaft to the lower connecting sleeve through the hinge joint. When the axis of the lower connecting sleeve and the axis of the upper connecting sleeve have an angular offset, the hinge joint can still drive the lower connecting sleeve to rotate along the axis of the lower connecting sleeve. The left-right swing mechanism comprises a connecting seat, a reducer, a T-slot plate, a connecting rod, and a swing seat. A support is fixed to each of the left and right ends of the connecting seat. The reducer is installed on one support. The swing seat is hinged to the other support through a swing seat rotating shaft. The reducer drives the T-slot plate to rotate. A T-slot is radially provided on the T-slot plate. A T-block is installed in the T-slot. The T-block can adjust the position along the T-slot and lock it. The T-block is hinged to the connecting rod through a connecting screw. The free end of the swing seat is hinged to the connecting rod through a connecting rod shaft. When the reducer rotates, the T-slot plate drives the swing seat to swing left and right with the swing seat rotating shaft as the center through the T-block and the connecting rod. The connecting end of the spherical shaft passes through the upper clamp and is fixedly connected with the lower connecting sleeve. The lower clamp is fixed on the swing seat. A limiting gasket is arranged between the upper clamp and the lower clamp.

2. A grinding device for a gun rack spherical clamp according to claim 1, characterized in that: One end of the connecting screw rod passes through the T-shaped block and is tightly fixed on the T-slot plate to lock the position of the T-shaped block, and the other end of the connecting screw rod is hinged to the connecting rod.

3. A grinding device for a gun rack spherical clamp according to claim 1 or 2, characterized in that: The T-block is located at a position of the T-slot that satisfies: when the T-slot on the T-slot plate driven by the reducer is in a vertical state, the upper clamp, the spherical shaft and the lower clamp are coaxial, and the swing seat can swing symmetrically from left to right, so that the spherical shaft can be evenly ground; When the T-shaped block is located at other positions, the angle of the left and right swing center line of the swing seat deviating from the vertical is less than 20°.

4. The grinding device for a gun rack spherical clamp according to claim 1, characterized in that: The spherical shaft and the lower connecting sleeve are positioned and connected with directional keys and connecting screws to make the spherical shaft and the lower connecting sleeve coaxial; the upper connecting sleeve is sleeved on the lower end of the Morse tapered shaft and fixedly connected with a connecting key and screws, and the upper end of the Morse tapered shaft cooperates with the tapered hole of the machine tool spindle and is locked by a pin shaft.

5. The grinding device for a gun rack spherical clamp according to claim 1, characterized in that: The bottom of the upper connecting sleeve is fixedly provided with the hinged head, and the lower connecting sleeve is hingedly connected to the hinged head through a connecting pin.

6. The grinding device for a gun rack spherical clamp according to claim 1, characterized in that: The spindle of the vertical drilling machine can realize forward, reverse and pause instructions, and the speed can be adjusted; the speed of the reducer can be adjusted, and the reducer is equipped with an emergency stop switch.

7. A working method of the grinding device for the gun rack spherical clamp according to claim 1, characterized in that: Apply diamond sand, polishing paste and abrasive evenly on the working surfaces of the upper hoop, spherical shaft and lower hoop; Assemble the gun mount ball clamp; The vertical drilling machine spindle drives the spherical shaft to rotate clockwise or counterclockwise through the Morse taper shaft, the upper connecting sleeve and the lower connecting sleeve, so as to realize the grinding of the spherical shaft and the upper clamp and the lower clamp within the range of degrees perpendicular to the rotation axis; during the grinding process, the adjusting bolt is gradually tightened to prevent the upper clamp and the lower clamp from locking; Turn on the reducer, which drives the T-slot plate, connecting rod and rocking seat to realize the reciprocating swing of the rocking seat in the plane. The lower connecting sleeve follows the swing. The rotation of the vertical drilling machine spindle is transmitted to the lower connecting sleeve through the hinge joint. The lower connecting sleeve rotates with the vertical drilling machine spindle and follows the swing of the rocking seat at the same time. At this time, the rotational motion of the vertical drilling machine spindle and the swing of the rocking seat run synchronously, and the two motion trajectories of rotation and swing are realized at the same time. During the grinding process, gradually tighten the adjusting bolt to prevent the clamp from locking, and lubricate the spherical shaft.

8. The working method of the grinding device of the gun rack spherical clamp according to claim 7 is characterized in that: By adjusting the positional relationship between the connecting rod and the T-slot plate, the swing angle of the swing seat is adjusted, and the swing angle satisfies the maximum elevation and depression angle of the gun mount.

9. The working method of the grinding device of the gun rack spherical clamp according to claim 7 is characterized in that: During the grinding process, ensure that the distance between the upper clamp and the lower clamp is greater than the thickness of the limit gasket.

10. The working method of the grinding device of the gun rack spherical clamp according to claim 7 is characterized in that: After grinding, remove the gun mount spherical clamp and clean it, then check it. If it is qualified, there should be more than 80% contact surface within 10mm from the mouth of the upper and lower clamps.

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