Clamping device of end face spring grinder

Abstract

The utility model relates to a clamping device of an end face spring grinding machine, which comprises a rack, a base and a pressing plate, the rack is used for being connected with a spring grinding machine body, the rack is connected with a lifting piece, the pressing plate comprises a fixed plate and two rotating plates, the two rotating plates are rotatably connected to the two ends of the fixed plate respectively, the lifting piece is connected with a rotating assembly, the base comprises two adjusting blocks, and the adjusting blocks are connected with the base. The length direction of the adjusting blocks is consistent with the width direction of the spring, and a containing gap is formed between the two adjusting blocks at intervals and used for containing the spring. The rotating assembly drives the rotating plate to rotate, so that the included angle between the rotating plate and the fixed plate is changed, the rotating plate makes contact with the spring, the spring is clamped, the included angle between the fixed plate and the rotating plate is adjustable, the pressing plate can adapt to springs of different sizes, and the pressing plate stably clamps the spring.

Description

Technical Field

[0001] The present application relates to the field of spring grinding machines, and in particular to a clamping device of an end face spring grinding machine. Background Art

[0002] The widespread use of springs has led to an increasing demand for springs. Springs are widely used in the current field of mechanisms. In order to ensure the verticality of the helical compression spring, keep the end faces of the two support rings in contact with other parts, reduce deflection and ensure the characteristics of the main machine, both end faces of the spring are generally ground. This process is usually called spring grinding. Spring grinding machines are generally used to grind the end faces of the springs.

[0003] The Chinese patent with the authorization announcement number CN220007104U discloses a clamping mechanism of a spring grinding machine, including a base, a connecting seat fixedly connected to the upper end of the base, a placement slot opened at the upper end of the connecting seat, a rotating plate rotatably connected to the inner side of the placement slot, a clamping assembly arranged on the rotating plate, and the clamping assembly including a hinge block fixedly connected to the inner side of the placement slot at one end. The clamping mechanism of the spring grinding machine, since the rotating plate rotates in the placement slot through the hinge block, after the two rotating plates are pushed to fit and are limited and fixed by the limit rod on the fixed block, the spring body can be squeezed and fixed by the block on the screw rod, otherwise the limit rod is pulled to separate from the rotating plate, the fixed block is removed, and the processed spring body can be taken out, and the size of the spring body squeezed and fixed by the block can be adjusted by rotating the screw rod to drive the block close to or away from the rotating plate, so that it is more convenient for operators to take and place the spring body and improve the processing efficiency.

[0004] With respect to the above-mentioned related technologies, the inner curvature of the stop block is limited. When the clamping radius of the stop block is different from the inner radius of the stop block, there is a possibility that the contact area between the stop block and the spring is small, resulting in an unstable connection between the stop block and the spring. Utility Model Content

[0005] In order to make the clamping plate adapt to springs of different sizes and make the connection between the spring and the clamping plate more stable, the present application provides a clamping device for an end spring grinding machine.

[0006] The clamping device of the end spring grinding machine provided in the present application adopts the following technical solution:

[0007] The cam is connected with the base to form a spring, and the cam is connected with the spring to form a spring.

[0008] By adopting the above technical solution, during grinding, the spring is placed in the placement gap between the two adjustment blocks, and the lifting member drives the fixed plate to move downward in the vertical direction. When the fixed plate contacts the spring, the rotating assembly drives the rotating plate to rotate, thereby changing the angle between the rotating plate and the fixed plate, and making the rotating plate contact with the spring to clamp the spring. The angle between the fixed plate and the rotating plate is adjustable, so that the clamping plate can adapt to springs of different sizes, so that the clamping plate can stably clamp the spring.

[0009] Optionally, the lifting member is connected to a support plate, the length direction of the support plate is consistent with the vertical direction, the support plate is provided with a sliding groove, the length direction of the sliding groove is consistent with the vertical direction, the rotating assembly includes a slider, a connecting rod, and a driving member, the slider is connected to the sliding groove by sliding along the vertical direction, two connecting rods are provided, both of the connecting rods are hinged to both sides of the slider, one connecting rod corresponds to a rotating plate, and one connecting rod is hinged to a rotating plate at one end away from the slider, and the driving member is used to drive the slider to move in the vertical direction.

[0010] By adopting the above technical solution, the driving member drives the slider to slide in the vertical direction and is connected to the sliding groove. When the slider moves, it drives the connecting rod to move, and the moving block drives the rotating plate to rotate, thereby changing the angle between the rotating plate and the fixed plate, thereby adapting to springs of different sizes.

[0011] Optionally, the driving member includes a screw rod and a first motor, the length direction of the screw rod is consistent with the vertical direction, the screw rod is rotatably connected in the sliding groove, the slider is threadedly sleeved on the screw rod, the first motor is connected to the support plate, and the output shaft of the first motor is connected to one end of the screw rod.

[0012] By adopting the above technical solution, the first motor drives the screw rod to rotate, so that the sliding block slides in the vertical direction and is connected in the sliding groove.

[0013] Optionally, the base also includes a support seat, the length direction of the support seat is consistent with the width direction of the spring, the support seat is connected to the frame, a placement groove is opened on the top of the support seat, the placement groove is a V-shaped groove, the two adjustment blocks are respectively located on both sides of the placement groove along the width direction of the support seat, the cross-section of the adjustment block along the length direction of the support seat is a right-angle trapezoidal setting, the inclined surface of the adjustment block is located at one end where the two adjustment blocks are close to each other, the inclined surface of the adjustment block is parallel to the inclined surface of the placement groove, the top gap of the inclined surfaces of the two adjustment blocks is larger than the bottom gap, the adjustment block is slidably connected to the top of the support seat along the length direction of the support seat and approaches or moves away from each other, and when the adjustment blocks approach each other, the spring is lifted.

[0014] By adopting the above technical solution, when the size of the polished spring is small, the adjusting block is slid along the length direction of the support seat so that the two adjusting blocks are close to each other, thereby reducing the opening at the top of the gap where the adjusting blocks are placed. This makes it easier for the clamping plate to clamp the spring when a smaller spring is placed between the two adjusting blocks, and minimizes contact between the clamping plate and the top of the adjusting block when clamping the spring.

[0015] Optionally, the adjustment block includes a first block and a second block, wherein the first block is slidably connected to the top of the support seat along the length direction of the support seat, the second block is connected to the top of the first block, and the second block is slidably connected to the bottom of the first block along the length direction of the support seat.

[0016] By adopting the above technical solution, the first block or the second block is selected for sliding according to the size of the spring, so that the spring is lifted to different heights, further adapting to springs of different sizes.

[0017] Optionally, a first limit block is connected to the bottom of the first block, and a first groove is formed on the top of the support seat for the first limit block to be embedded in. There are two first grooves, one first groove corresponds to one first limit block, the length direction of the first groove is consistent with the length direction of the support seat, and the first limit block is slidably connected to the first groove along the length direction of the support seat. A second groove is formed on the top of the first block, and the length direction of the second groove is consistent with the length direction of the first groove. A second limit block is connected to the bottom of the second block, and the second limit block is embedded in the second groove. The second limit block is slidably connected to the second groove along the length direction of the support seat. Locking pieces are provided in the first groove and the second groove, and the locking piece is used to lock the first limit block in the first groove, and the locking piece is also used to lock the second limit block in the second groove.

[0018] By adopting the above technical solution, when the first block is moved, the first limit block is slidably connected in the first groove, so that the first block can move stably in a predetermined direction. When the second block is moved, the second limit block is slidably connected in the second groove, so that the second block can move stably in a predetermined direction. A locking piece is added to ensure that the first limit block is stably connected in the first groove and the second limit block is stably connected in the second groove.

[0019] Optionally, a guide surface is provided on one side of the adjustment blocks that are close to each other, the guide surface is located at the top of the adjustment blocks, the guide surface is inclined, the gap at the bottom ends of the two guide surfaces is smaller than the gap at the top ends, and the frame is connected to a pushing member, which is used to drive the adjustment blocks to slide along the spring width direction and be connected to the frame and approach or move away from each other.

[0020] By adopting the above technical solution, when the size of the clamped spring becomes smaller, the pushing member pushes the adjusting block along the width direction of the spring, so that the two adjusting blocks are close to each other, thereby reducing the gap at the top of the placement gap, so that the spring placed in the placement gap is lifted, making it easier for the base to adapt to springs of different sizes.

[0021] Optionally, a flexible layer is connected to one side of the fixed plate and the rotating plate close to the spring.

[0022] By adopting the above technical solution, a flexible layer is added, and when the clamping plate clamps the spring, the flexible layer is deformed, so that the spring is stably clamped on the spring.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. During grinding, place the spring in the placement gap between the two adjustment blocks, and the lifting member drives the fixed plate to move downward in the vertical direction. When the fixed plate contacts the spring, the rotating assembly drives the rotating plate to rotate, thereby changing the angle between the rotating plate and the fixed plate, and making the rotating plate contact the spring to clamp the spring. The angle between the fixed plate and the rotating plate is adjustable, so that the clamping plate can adapt to springs of different sizes, so that the clamping plate can stably clamp the spring;

[0025] 2. The driving member drives the slider to slide in the vertical direction and connect to the sliding groove. When the slider moves, it drives the connecting rod to move, and the moving block drives the rotating plate to rotate, thereby changing the angle between the rotating plate and the fixed plate, thereby adapting to springs of different sizes;

[0026] 3. When the size of the spring to be polished is small, slide the adjusting block along the length direction of the support seat so that the two adjusting blocks are close to each other, thereby reducing the opening at the top of the gap where the adjusting blocks are placed. This makes it easier for the clamping plate to clamp the spring when the smaller spring is placed between the two adjusting blocks, and tries to avoid contact between the clamping plate and the top of the adjusting block when clamping the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of this embodiment 1.

[0028] Figure 2 It is a top view of the present embodiment 1.

[0029] Figure 3 This is the embodiment 1 Figure 2 Sectional view along AA direction.

[0030] Figure 4 This is the embodiment 1 Figure 3 Magnified view of part C.

[0031] Figure 5 This is the embodiment 1 Figure 2 Cross-sectional view along the BB axis.

[0032] Figure 6 It is a three-dimensional structural diagram of the second embodiment.

[0033] Figure 7 This is the embodiment 2 Figure 6 Enlarged view of part D.

[0034] Explanation of the reference numerals: 100, frame; 110, first cylinder; 120, support plate; 121, sliding groove; 130, second cylinder; 200, base; 210, support seat; 211, placement groove; 212, first groove; 220, adjustment block; 221, first block; 222, second block; 223, first limit block; 224, second limit block; 225, second groove; 226, first thread groove; 227, second thread groove; 240, guide surface; 250, placement gap; 300, clamping plate; 310, fixing plate; 320, rotating plate; 330, flexible layer; 400, rotating assembly; 410, slider; 420, connecting rod; 430, driving member; 431, screw rod; 432, first motor. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-7 This application is described in further detail.

[0036] The present application embodiment discloses a clamping device for an end spring grinding machine. Figure 1 and Figure 2 The clamping device of the end spring grinding machine includes a frame 100, a base 200 connected to the frame 100, and a clamping plate 300. The frame 100 is used to be connected to the spring grinding machine body. The clamping plate 300 is located directly above the base 200. The clamping plate 300 is connected to the frame 100 through a lifting member, and the lifting member is used to drive the clamping plate 300 to move in the vertical direction. The base 200 is used to place the spring, and the length direction of the base 200 is consistent with the width direction of the spring.

[0037] Reference Figure 1 and Figure 3 The pressing plate 300 includes a fixed plate 310 and a rotating plate 320. The width direction of the fixed plate 310 is consistent with the length direction of the base 200. Two rotating plates 320 are provided, and the two rotating plates 320 are respectively rotatably connected to the fixed plate 310 at both sides along the width direction of the fixed plate 310. One end of the rotating plate 320 along its length direction is rotatably connected to one end of the fixed plate 310. Both the rotating plate 320 and the fixed plate 310 are used to contact the spring.

[0038] The rotating plate 320 is rotated to change the angle between the rotating plate 320 and the fixed plate 310 , thereby adapting to springs of different sizes.

[0039] Reference Figure 3 and Figure 4 The base 200 includes a support seat 210 and two adjustment blocks 220. The length direction of the support seat 210 is consistent with the length direction of the fixed plate 310. A placement groove 211 is provided on the top of the support seat 210, and the placement groove 211 is a V-shaped groove. The length direction of the adjustment block 220 is consistent with the length direction of the support seat 210. The two adjustment blocks 220 are spaced apart along the length direction of the support seat 210, and the placement groove 211 is provided between the two adjustment blocks 220. The cross section of the adjustment block 220 along the width direction of the support seat 210 is a right-angle trapezoidal setting. The inclined surface of the adjustment block 220 is located at one end of the adjustment block 220 close to another adjustment block 220. The bottom gap of the two adjustment blocks 220 close to each other is smaller than the top gap, and the inclined surface is arranged parallel to the inclined surface of the placement groove 211. The adjustment block 220 is slidably connected to the top of the support seat 210 along the length direction of the support seat 210.

[0040] Reference Figure 3 and Figure 4 The adjustment block 220 includes a first block 221 and a second block 222. The first block 221 is connected to the top of the support seat 210. The first block 221 is slidably connected to the top of the support seat 210 along the length direction of the support seat 210, and the second block 222 is connected to the top of the first block 221. The bottom of the first block 221 is connected to a first limiting block 223. The top of the support seat 210 is provided with a first groove 212 for the first limiting block 223 to be embedded. There are two first grooves 212. The two first grooves 212 are located on both sides of the placement groove 211 along the length direction of the support seat 210. The length direction of the first groove 212 is consistent with the length direction of the support seat 210. One first groove 212 corresponds to one first limiting block 223. One first limiting block 223 is embedded in one first groove 212, and the first limiting block 223 is slidably connected to the first groove 212 along the length direction of the support seat 210.

[0041] Reference Figure 3 and Figure 4The second block 222 is slidably connected to the top of the first block 221 along the length direction of the support seat 210. The second block 222 is connected to the bottom with a second stopper 224. The top of the first block 221 is provided with a second groove 225. The length direction of the second groove 225 is consistent with the length direction of the support seat 210. The second stopper 224 is embedded in the second groove 225. The second stopper 224 is slidably connected to the second groove 225 along the length direction of the support seat 210.

[0042] Reference Figure 3 and Figure 4 The first groove 212 and the second groove 225 are both provided with locking members, and the locking members are used to lock the first limiting block 223 in the first groove 212, and the locking members are also used to lock the second limiting block 224 in the second groove 225. The locking member is a bolt, and the first groove 212 is provided with a first thread groove 226, and the bolt is threadedly connected to the first thread groove 226. When the bolt is threadedly connected to the first thread groove 226, the bolt contacts the side of the first block 221 away from the placement groove 211, and the second groove 225 is provided with a second thread groove 227, and the bolt is threadedly connected to the second thread groove 227. When the bolt is threadedly connected to the second thread groove 227, the bolt contacts the side of the second block 222 away from the placement groove 211.

[0043] When the size of the clamped spring is small, the first block 221 or the second block 222 is pushed according to the size of the spring, thereby raising the position of the spring, making it easier for the clamping plate 300 to clamp the spring, and further adapting to springs of different sizes.

[0044] Reference Figure 3 and Figure 5 The lifting member is provided by the first cylinder 110, the first cylinder 110 is connected to the frame 100, and the piston rod of the first cylinder 110 extends downward in the vertical direction. The bottom end of the piston rod of the first cylinder 110 is connected to a support plate 120, the length direction of the support plate 120 is consistent with the vertical direction, and the support plate 120 is connected to a rotating assembly 400, which is used to drive the rotating plate 320 to rotate and adjust the angle between the fixed plate 310 and the rotating plate 320.

[0045] Reference Figure 3 and Figure 5A sliding groove 121 is provided on one side of the support plate 120, and the length direction of the sliding groove 121 is consistent with the vertical direction. The rotating assembly 400 includes a slider 410 and a connecting rod 420. The slider 410 is slidably connected to the sliding groove 121 along the vertical direction. There are two connecting rods 420, one connecting rod 420 corresponds to one rotating plate 320, one connecting rod 420 is hinged to the side of one rotating plate 320 away from the spring along one end of its length direction, and the other connecting rod 420 is hinged to the side of the other rotating plate 320 away from the spring along one end of its length direction. The ends of the two connecting rods 420 away from the rotating plate 320 are both hinged to the slider 410, and the two connecting rods 420 are respectively hinged to the two sides of the slider 410 along the width direction of the fixed plate 310. The rotating assembly 400 also includes a driving member 430, which is used to drive the slider 410 to move along the vertical direction. The driving member 430 includes a screw rod 431 connected to the support plate 120 and a first motor 432. The length direction of the screw rod 431 is consistent with the vertical direction. The two ends of the screw rod 431 along its length direction are respectively rotatably connected to the inner wall of the corresponding side of the sliding groove 121. The slider 410 is threadedly sleeved on the screw rod 431. The first motor 432 is connected to the top of the support plate 120. The output shaft of the first motor 432 passes through the inner wall of the sliding groove 121 along the vertical direction and is connected to the top of the screw rod 431. The fixed plate 310 and the rotating plate 320 are both connected to the side close to the spring with a flexible layer 330, and the flexible layer 330 is made of rubber.

[0046] When the clamping plate 300 clamps the spring, the first motor 432 drives the screw rod 431 to rotate, so that the slider 410 slides in the vertical direction and is connected to the sliding groove 121. The slider 410 drives the connecting rod 420 to move, thereby driving the rotating plate 320 to rotate, so as to facilitate the clamping plate 300 to clamp springs of different sizes.

[0047] The implementation principle of the clamping device of an end spring grinding machine in Example 1 of the present application is as follows: when clamping the spring, the spring is placed in the placement gap 250, and the first cylinder 110 drives the clamping plate 300 to move downward in the vertical direction. When the fixed plate 310 contacts the spring, the first motor 432 drives the screw rod 431 to rotate, so that the slider 410 slides in the vertical direction and is connected to the sliding groove 121. The connecting rod 420 moves with the slider 410 and drives the rotating plate 320 to rotate, thereby changing the angle between the rotating plate 320 and the fixed plate 310, so that the rotating plate 320 contacts the spring, which is convenient for the clamping plate 300 to adapt to springs of different sizes.

[0048] Embodiment 2:

[0049] This embodiment differs from Embodiment 1 in that:

[0050] Reference Figure 6 and Figure 7The bottom of the adjusting block 220 is slidably connected to the frame 100. A guide surface 240 is provided on one side of the adjusting blocks 220 close to each other. The guide surface 240 is located at the top of the adjusting block 220. The guide surface 240 is tilted, and the gap between the bottom ends of the two guide surfaces 240 is smaller than the gap at the top end. The frame 100 is connected with a pusher, and the pusher is provided by the second cylinder 130. The second cylinder 130 is connected to the frame 100, and the piston rod of the second cylinder 130 extends along the length direction of the base 200. The second cylinder 130 is provided with two, and one second cylinder 130 is connected to one adjusting block 220. The second cylinder 130 is used to drive the adjusting block 220 to slide along the width direction of the spring and be close to or away from each other. According to the different sizes of the springs, the distance between the two adjusting blocks 220 is adjusted to change the size of the top opening of the placement gap 250 to adapt to springs of different sizes.

[0051] The implementation principle of the clamping device of an end spring grinding machine in Example 2 of the present application is as follows: when the size of the spring in the placement gap 250 is small, the second cylinder 130 drives the adjustment block 220 to slide along the width direction of the spring, so that the two adjustment blocks 220 are close to each other, thereby reducing the top opening of the placement gap 250 and lifting the spring, thereby facilitating the clamping plate 300 to clamp the spring and further adapting to springs of different sizes.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A clamping device for an end spring grinding machine, characterized in that: The invention comprises a frame (100), a base (200), and a pressing plate (300), wherein the frame (100) is used to be connected to a spring grinding machine body, the base (200) is connected to the frame (100), the length direction of the base (200) is consistent with the width direction of the spring, the pressing plate (300) is located above the base (200), the frame (100) is connected to a lifting member, the lifting member is used to drive the pressing plate (300) to move in a vertical direction, the pressing plate (300) comprises a fixed plate (310) and two rotating plates (320), the width direction of the fixed plate (310) is consistent with the length direction of the base (200), and the two rotating plates (320) are rotatably connected to the fixed plate (310) and the rotating plate (320) are respectively ... The plate (310) is provided at two ends along the width direction of the fixed plate (310); the rotating plate (320) and the fixed plate (310) are both used to contact the spring; the lifting member is connected to a rotating assembly (400); the rotating assembly (400) is used to drive the rotating plate (320) to rotate and adjust the angle between the fixed plate (310) and the rotating plate (320); the base (200) comprises two adjustment blocks (220); the length direction of the adjustment blocks (220) is consistent with the width direction of the spring; the two adjustment blocks (220) are spaced apart along the width direction of the spring; a placement gap (250) is provided between the two adjustment blocks (220); the placement gap (250) is used to place the spring.

2. The clamping device of the end spring grinding machine according to claim 1 is characterized in that: The lifting member is connected to a support plate (120), the length direction of the support plate (120) is consistent with the vertical direction, the support plate (120) is provided with a sliding groove (121), the length direction of the sliding groove (121) is consistent with the vertical direction, the rotating assembly (400) comprises a slider (410), a connecting rod (420), and a driving member (430), the slider (410) is slidably connected to the sliding groove (121) along the vertical direction, two connecting rods (420) are provided, the two connecting rods (420) are hinged to two sides of the slider (410), one connecting rod (420) corresponds to one rotating plate (320), and one end of the connecting rod (420) away from the slider (410) is hinged to one rotating plate (320), and the driving member (430) is used to drive the slider (410) to move along the vertical direction.

3. The clamping device of the end spring grinding machine according to claim 2 is characterized in that: The driving member (430) comprises a screw rod (431) and a first motor (432); the length direction of the screw rod (431) is consistent with the vertical direction; the screw rod (431) is rotatably connected to the sliding groove (121); the sliding block (410) is threadedly sleeved on the screw rod (431); the first motor (432) is connected to the support plate (120); and the output shaft of the first motor (432) is connected to one end of the screw rod (431).

4. The clamping device of the end spring grinding machine according to claim 1 is characterized in that: The base (200) further comprises a support seat (210), wherein the length direction of the support seat (210) is consistent with the width direction of the spring, the support seat (210) is connected to the frame (100), a placement groove (211) is provided on the top of the support seat (210), the placement groove (211) is a V-shaped groove, the two adjustment blocks (220) are respectively located on both sides of the placement groove (211) along the width direction of the support seat (210), and the adjustment blocks (220) are arranged along the length direction of the support seat (210). The cross section is a right-angled trapezoid, the inclined surface of the adjustment block (220) is located at one end where the two adjustment blocks (220) are close to each other, the inclined surface of the adjustment block (220) is arranged in parallel with the inclined surface of the placement groove (211), the top gap of the inclined surfaces of the two adjustment blocks (220) is larger than the bottom gap, the adjustment blocks (220) are slidably connected to the top of the support seat (210) along the length direction of the support seat (210) and approach or move away from each other, and when the adjustment blocks (220) approach each other, the spring is lifted.

5. The clamping device of the end spring grinding machine according to claim 4, characterized in that: The adjustment block (220) comprises a first block (221) and a second block (222), wherein the first block (221) is slidably connected to the top of the support seat (210) along the length direction of the support seat (210), the second block (222) is connected to the top of the first block (221), and the second block (222) is slidably connected to the bottom of the first block (221) along the length direction of the support seat (210).

6. The clamping device of the end spring grinding machine according to claim 5, characterized in that: A first limiting block (223) is connected to the bottom of the first block (221); a first groove (212) for the first limiting block (223) to be embedded is provided on the top of the support seat (210); two first grooves (212) are provided, one first groove (212) corresponds to one first limiting block (223); the length direction of the first groove (212) is consistent with the length direction of the support seat (210); the first limiting block (223) is slidably connected to the first groove (212) along the length direction of the support seat (210); a second groove (225) is provided on the top of the first block (221); the second groove (225) The length direction of the groove (225) is consistent with the length direction of the first groove (212); the second block (222) is connected to a second limit block (224) at the bottom; the second limit block (224) is embedded in the second groove (225); the second limit block (224) is slidably connected to the second groove (225) along the length direction of the support seat (210); locking members are provided in both the first groove (212) and the second groove (225); the locking members are used to lock the first limit block (223) in the first groove (212); and the locking members are also used to lock the second limit block (224) in the second groove (225).

7. The clamping device of the end spring grinding machine according to claim 1, characterized in that: A guide surface (240) is provided on one side of the adjusting blocks (220) close to each other, the guide surface (240) is located at the top of the adjusting blocks (220), the guide surface (240) is arranged obliquely, and the gap between the bottom ends of the two guide surfaces (240) is smaller than the gap between the top ends. The frame (100) is connected to a pushing member, and the pushing member is used to drive the adjusting blocks (220) to slide along the spring width direction to connect to the frame (100) and to move closer to or farther away from each other.

8. The clamping device of the end spring grinding machine according to claim 1, characterized in that: The fixed plate (310) and the rotating plate (320) are both connected to a flexible layer (330) on one side close to the spring.

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