Grinding clamping tool

Abstract

The utility model relates to the technical field of tool equipment, in particular to a grinding clamping tool which comprises a mounting base, a clamping mechanism and a driving mechanism, the mounting base is provided with a mounting groove used for mounting a grinding tool, the clamping mechanism is used for clamping or loosening the grinding tool in the mounting groove, and the driving mechanism is used for driving the grinding tool to rotate. The driving mechanism comprises an electric control power source and an elastic reset piece, the power source is used for driving the clamping mechanism to loosen the grinding tool under the electric control effect, and the elastic reset piece drives the clamping mechanism to clamp the grinding tool through the elastic force of the elastic reset piece. The clamping mechanism is used for locking the grinding tool, the movement of the clamping mechanism is controlled by the driving mechanism, and when the grinding tool needs to be loosened, the electric control power source drives the clamping mechanism to loosen the grinding tool through electric control; when the grinding tool needs to be clamped, the elastic reset piece enables the clamping mechanism to clamp the grinding tool through the elastic force of the elastic reset piece, the clamping reliability and convenience can be improved, and the workload of manually locking the grinding tool by an operator is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool equipment technical field, concretely relates to a grinding clamping tool. BACKGROUND

[0002] Coarse polishing is a kind of processing method to product surface grinding processing, and the grinding tool equipped with product, iron powder and polishing liquid is installed in coarse polishing equipment, and the coarse polishing equipment drives the grinding tool to rotate to make product, iron powder and polishing liquid fully contact to grind product surface.Currently, the grinding tool is installed and fixed in the coarse polishing equipment by the coarse polishing ejector rod of the coarse polishing equipment, and the coarse polishing ejector rod is manually locked by the operator, which is complicated and prone to failure.In addition, the grinding tool is heavy, and the operator needs to carry the grinding tool into the coarse polishing equipment before locking, which increases the workload of the operator and is not conducive to efficient coarse polishing. SUMMARY

[0003] The utility model aims at providing a grinding clamping tool, and the clamping locking of grinding tool is realized by electric control, which is beneficial to improve the reliability of clamping and the workload of manual operation.

[0004] To achieve the above object, the technical scheme of the utility model is as follows: a grinding clamping tool, comprising installation base, clamping mechanism and drive mechanism, the installation base is equipped with the installation groove for installing grinding tool, the clamping mechanism is used for clamping or loosening the grinding tool in the installation groove, the drive mechanism includes electric control power source and elastic reset member, the power source is used for driving the clamping mechanism to loosen the grinding tool under the electric control, and the elastic reset member drives the clamping mechanism to clamp the grinding tool by the elastic force.

[0005] In one embodiment, the clamping mechanism includes a swing rod, the swing rod has two swing ends and a swing center shaft between the two swing ends, and the two swing ends are connected with a claw respectively, so that the two claws are connected by the swing rod to form linkage, so that the two claws form a synchronous reverse motion connection relationship, realizing the selective clamping or loosening of the grinding tool.

[0006] In one embodiment, each of the claws is fixedly connected to a guide rod, one of the guide rods is in driving connection with the power source, the guide rod connected with the power source is defined as the main guide rod, the claw connected with the main guide rod is defined as the main claw, and the other claw is defined as the secondary claw, the main claw moves with the main guide rod under the driving action of the power source, and the secondary claw moves synchronously under the linkage of the swing rod, so that the two claws move synchronously and reversely.

[0007] In one embodiment, two ends of the guide rod are respectively connected to a support in a sliding manner, the support is in a fixed connection relationship with the mounting base, the elastic reset member is arranged between the support and the claw, and the power source is used to drive the claw to move towards a direction of loosening the grinding tool and compress the elastic reset member. The elastic reset member drives the claw and the guide rod to reset and move towards a direction of clamping the grinding tool by means of the elastic force.

[0008] In one embodiment, the extension direction of the guide rod is defined as the X-axis direction, the direction of the mounting groove relative to the guide rod is defined as the Z-axis direction, the Y-axis direction is perpendicular to the X-axis direction and the Z-axis direction, the two guide rods are arranged along the Y-axis direction, the claw is provided with a hook portion extending from the guide rod towards the Z-axis direction and formed at the end, the hook portion is used to hook the clamping groove of the grinding tool to clamp the grinding tool, and the hook portion is located between the main guide rod and the secondary guide rod in the Y-axis direction. The guide rod connected to the secondary claw is defined as the secondary guide rod.

[0009] In one embodiment, a detection mechanism is further included, the detection mechanism includes a detection rod, the guide rod connected to the secondary claw is defined as the secondary guide rod, the detection rod is arranged beside the secondary guide rod along the movement direction of the secondary guide rod, and whether the clamping mechanism is moved to the position is detected by detecting the movement distance of the detection rod to contact the secondary guide rod.

[0010] In one embodiment, the swing center axis of the swing rod is provided with a mandrel, and the end of the mandrel protrudes into the mounting groove to form the mounting positioning structure of the grinding tool.

[0011] In one embodiment, the mounting base is provided with a clamping hole communicated with the mounting groove, the mounting groove has a feeding and discharging port for the grinding tool to pass through and enter the mounting groove, the clamping hole is arranged opposite to the feeding and discharging port, and the mandrel and the claw respectively protrude in the clamping hole and extend into the mounting groove.

[0012] In one embodiment, the claw is provided with a through hole, the clamping hole of the mounting base is provided with a connecting plate, the connecting plate is arranged through the through hole of the claw, the claw is further connected with a roller, and the roller and the connecting plate form a rolling friction connection relationship, so that the movement of the claw drives the roller to roll along the connecting plate.

[0013] In one embodiment, a connecting plate is arranged at the clamping hole of the mounting base, the mandrel is arranged on the connecting plate and the end of the mandrel protrudes from the connecting plate to form the mounting positioning structure, and the swing rod is rotationally connected to the mandrel.

[0014] The utility model discloses beneficial effect is:

[0015] 1, the utility model discloses utilize clamping mechanism to lock the grinding frock, and the movement of clamping mechanism is relied on drive mechanism to control, when needing to loosen the grinding frock, and the power source of electric control drives clamping mechanism to loosen the grinding frock through electric control, when needing to clamp the grinding frock, and elastic reset piece utilizes its elasticity and make clamping mechanism clamp the grinding frock, can improve the reliability and convenience of mounting and clamp, reduce the workload of operating personnel manual locking grinding frock.

[0016] 2, set up two clamping jaws at the both swing ends of the swing rod, utilize the swing rod to realize the linkage of two clamping jaws to make two clamping jaws synchronous reverse movement, make the control difficulty of clamping jaw lower.

[0017] 3, the power source is directly acted on the main guide rod, and the secondary guide rod is indirectly driven through the main guide rod and the swing rod, so that two clamping jaws move synchronously, utilize the length of the swing rod and increase the driving torque, be favorable to drive the action of clamping mechanism through smaller driving force.

[0018] 4, the extension direction of two guide rods, the relative position direction and the relative position direction between clamping mechanism and mounting groove are all perpendicular to each other, and the overall layout is more compact, and the installation space is smaller, and it is favorable to the miniaturization of rough polishing equipment.

[0019] 5, set up detection rod can detect whether two clamping jaws are clamped in place, ensure the reliability of grinding frock mounting and clamping stability, improve the safety of equipment.

[0020] 6, the mandrel can become the swing center axis of the swing rod to maintain the reliability of the swing rod rotation, can also provide mounting connection point for the swing rod, improve the strength and stability of the swing rod, further improve the reliability of the mounting frock, and the part of the mandrel protruding into the mounting groove can also play the role of mounting and positioning for the grinding frock, improve the installation convenience and accuracy of the grinding frock. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the perspective view of the utility model embodiment.

[0022] Figure 2 It is the front view of the utility model embodiment.

[0023] Figure 3 It is the bottom view of the utility model embodiment.

[0024] Figure 4is Figure 3 A-A cross-sectional view of

[0025] Figure 5 is Figure 4 Clamping mechanism open state schematic view under perspective view.

[0026] Wherein: 1 installation base, 11 installation groove, 12 clamping hole, 2 clamping mechanism, 21 swing rod, 22 claw, 221 hook part, 222 through hole, 22A main claw, 22B secondary claw, 23 mandrel, 24 guide rod, 24A main guide rod, 24B secondary guide rod, 25 holding block, 251 sliding groove, 25A main holding block, 25B secondary holding block, 26 bearing, 27 roller, 3 drive mechanism, 31 first cylinder, 32 drive connecting rod, 33 spring, 4 support, 5 connecting plate, 6 detection mechanism, 61 detection rod, 62 second cylinder, 100 rough polishing barrel. DETAILED DESCRIPTION

[0027] To further illustrate the embodiments, the utility model provides the drawing. These drawings are part of the utility model disclosure, which is mainly used to illustrate the embodiments, and can be combined with the related description of the specification to explain the operation principle of the embodiments. With reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model. The components in the drawing are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] Referring to Figures 1 to 5 As shown in the utility model discloses a grinding clamping tool, including installation base 1, clamping mechanism 2 and drive mechanism 3, installation base 1 is equipped with the installation groove 11 for installing grinding tool, clamping mechanism 2 is used for clamping or loosening the grinding tool in installation groove 11, drive mechanism 3 includes electric control power source and elastic reset piece, power source is used for electric control under the action and drives clamping mechanism 2 to loosen grinding tool, and elastic reset piece drives clamping mechanism 2 to clamp grinding tool by its elastic force.

[0029] Wherein, the grinding tool of the embodiment is rough polishing barrel 100, it includes inner bucket and outer bucket, inner bucket is used to fill product, iron powder and grinding liquid, and inner bucket is arranged in outer bucket, and clamping mechanism 2 is through clamping outer bucket to realize the clamping fixing of grinding tool 100.In other embodiments, the grinding tool can be other grinding product and grinding material for grinding tool, for example, fine polishing barrel, etc.

[0030] The utility model discloses a clamping mechanism 2 is used to lock the rough polishing barrel 100, and the movement of the clamping mechanism 2 is controlled by the driving mechanism 3, when the rough polishing barrel 100 needs to be loosened, the power source of electric control drives the clamping mechanism 2 to loosen the rough polishing barrel 100 through electric control, when the rough polishing barrel 100 needs to be clamped, the elastic reset piece makes the clamping mechanism clamp the rough polishing barrel 100 by its elastic force, can improve the reliability and convenience of mounting and clamping, reduce the workload of operating personnel manually locking the rough polishing barrel 100.

[0031] The rough polishing barrel 100 comprises an inner barrel and an outer barrel, the inner barrel is used for loading products, iron powder and grinding liquid, and the inner barrel is arranged in the outer barrel, and the clamping mechanism 2 clamps and fixes the rough polishing barrel 100 by clamping the outer barrel.

[0032] Referring to Figures 1 to 5 The clamping mechanism 2 comprises a swing rod 21, the swing rod 21 has two swing ends and a swing center shaft between the two swing ends, the swing center shaft of the embodiment is formed by a mandrel 23, the two ends of the swing rod form the swing ends, and the two swing ends are connected with a claw 22 respectively, so that the two claws 22 are connected by the swing rod 21 and form linkage, so that the two claws 22 form a synchronous reverse motion connection, and the rough polishing barrel 100 is selectively clamped or loosened. In the embodiment, the two claws 22 are arranged at the two swing ends of the swing rod 21, and the linkage of the two claws 22 is realized by the swing rod 21 to make the two claws 22 move synchronously and reversely, so that the control difficulty of the claw 22 is lower. In other embodiments, each claw is connected to a swing rod respectively, and it is also feasible to control the swing of each swing rod respectively.

[0033] The power source of the driving mechanism 3 is a first air cylinder 31, the end of the first air cylinder 31 is provided with a driving connecting rod 32, the driving connecting rod 32 is driven to stretch and retract by the first air cylinder 31 to make the two claws 22 move in the direction away from each other, so as to loosen the rough polishing barrel.

[0034] Each claw 22 is fixedly connected to a guide rod 24, one guide rod 24 is in transmission connection with the first air cylinder 31, the guide rod 24 in transmission connection with the first air cylinder 31 is defined as a main guide rod 24A, the claw connected with the main guide rod 24A is defined as a main claw 22A, the other claw 22 is defined as a secondary claw 22B, the guide rod 24 connected with the secondary claw 22B is defined as a secondary guide rod 24B, the main claw 22A moves under the driving action of the first air cylinder 31, and the secondary claw 22B moves synchronously under the linkage of the swing rod 21, so as to realize the synchronous reverse motion of the two claws 22.

[0035] Referring to Figures 2 to 5As shown, the extending direction of the guide rods 24 is defined as the X-axis direction, the direction of the mounting groove 11 relative to the guide rods 24 is defined as the Z-axis direction, and the direction perpendicular to the X-axis direction and the Z-axis direction is the Y-axis direction. The two guide rods 24 are arranged along the Y-axis direction, the clamping jaws 22 are provided with clamping hook portions 221 extending from the guide rods 24 toward the Z-axis direction and formed at the ends, the clamping hook portions 221 are used to clamp the rough polishing barrel 100 by clamping the clamping grooves 101 of the rough polishing barrel 100, and the clamping hook portions 221 are located between the main guide rod 24A and the secondary guide rod 24B in the Y-axis direction. The guide rod connected to the secondary clamping jaw is defined as the secondary guide rod 24B, so that the clamping force of the two clamping jaws 22 on the rough polishing barrel 100 is more balanced.

[0036] The two ends of the guide rods 24 are respectively connected to a support 4 in a sliding manner, and the support 4 is fixedly connected to the mounting base 1. The elastic reset member of the present embodiment is a spring 33 arranged between the support 4 and the clamping jaw 22. When the first air cylinder 31 extends to drive the clamping jaw 22 to move toward the direction of loosening the rough polishing barrel 100, the spring 33 is compressed to accumulate elastic force. When the first air cylinder 31 leaves the main guide rod 24A with the driving connecting rod 32, the spring 33 drives the clamping jaw 22 and the guide rod 24 to reset and move toward the direction of clamping the rough polishing barrel 100 by means of the elastic force.

[0037] Referring to Figures 1 to 5 As shown, the main guide rod 24A and the secondary guide rod 24B are arranged along the Y-axis direction, and the clamping hook portions 221 of the clamping jaws 22 are arranged between the main guide rod 24A and the secondary guide rod 24B. Therefore, the clamping jaws 22 will at least extend a certain distance from one guide rod 24 to the direction of the other guide rod 24. In the present embodiment, the clamping jaws 22 are provided with two through holes, and the two guide rods 24 are respectively arranged in the corresponding through holes. This design can make the structures of the two clamping jaws 22 the same, thereby reducing the types of the clamping jaws 22, i.e., the main clamping jaw 22A and the secondary clamping jaw 22B have the same structure and only differ in the installation position and direction. The two guide rods 24 can also provide support for the clamping jaws 22, making the clamping jaws 22 more stable. In order to realize the fixed connection of each clamping jaw 22 to each guide rod 24, in the present embodiment, the clamping jaws 22 are fixedly connected to the guide rods 24 through clamping blocks 25. The clamping blocks 25 are fixedly connected to the clamping jaws 22, the clamping blocks 25 are sleeved on the guide rods 24 and fixedly connected to the guide rods 24 through bolts, thereby realizing the fixed connection of one clamping jaw 22 to one guide rod 24, i.e., the main clamping jaw 22A is fixedly connected to the main guide rod 24A through the main clamping block 25A, and the secondary clamping jaw 22B is fixedly connected to the secondary guide rod 24B through the secondary clamping block 25B. The other through hole of the main clamping jaw 22A is provided with the support 4, and the secondary guide rod 24B is arranged in the support 4 to form an indirect relative sliding connection with the main clamping jaw 22A. Correspondingly, the main guide rod 24A is arranged in the support 4 on the main clamping jaw 22A to form an indirect relative sliding connection with the secondary clamping jaw 22B.

[0038] Since the swing lever 21 swings, its movement track is arcuate, and the movement track of the clamping jaw 22 is linear. In order to prevent movement interference between the two, the clamping block 25 is provided with a sliding groove 251, and the end of the swing lever 21 is indirectly connected to the clamping jaw 22 through a bearing 26 installed in the sliding groove 251. When the clamping jaw 22 moves with the guide rod 24 and the swing lever 21 swings, the bearing 26 will slide in the sliding groove 251.

[0039] The swing lever 21 is provided with a mandrel 23 at the swing center axis, and the end of the mandrel 23 protrudes into the installation groove 11 to form the installation positioning structure of the rough polishing barrel 100. The installation base 1 is provided with a clamping hole 12 communicated with the installation groove 11, and the installation groove 11 has an upper and lower feeding port for the rough polishing barrel 100 to pass through to enter the installation groove 11, and the clamping hole 12 is arranged opposite to the upper and lower feeding port, and the mandrel 23 and the clamping jaw 22 respectively protrude into the installation groove 11 through the clamping hole 12. The presence of the mandrel 23 can provide an installation positioning structure for the rough polishing barrel 100, so that the position of the rough polishing barrel 100 after being installed into the installation groove 11 is more accurate, and the clamping jaw 22 is used for clamping.

[0040] The clamping hole 12 of the installation base 1 is provided with a connecting plate 5, the mandrel 23 is arranged on the connecting plate 5 and the end of the mandrel 23 protrudes from the connecting plate 5 to form the installation positioning structure, and the swing lever 23 is rotationally connected to the mandrel 23, so that the mandrel 23 becomes the rotation center axis of the swing lever 21. The swing lever 21 is indirectly connected to the connecting plate 5 through the mandrel 23, and is indirectly connected to the installation base 1, so that the connection points of the swing lever 21 are more and more stable, which is beneficial to further improve the stability of the clamping jaw 22 and the clamping reliability of the rough polishing barrel 100.

[0041] The clamping jaw 22 is provided with a through hole 222, the connecting plate 5 passes through the through hole 222 of the clamping jaw 22, and the clamping jaw 22 is further connected with a roller shaft 27, and the roller shaft 27 and the connecting plate 5 form a rolling friction connection relationship, so that the movement of the clamping jaw 22 drives the roller shaft 27 to roll along the connecting plate 5. When the clamping jaw 22 moves, the rolling friction between the roller shaft 27 and the connecting plate 5 makes the movement of the clamping jaw 22 more stable, especially during the process of resetting of the clamping jaw 22 under the action of the spring 32, because the elastic force is large, the movement speed of the clamping jaw 22 is fast, and the rolling friction between the roller shaft 27 and the connecting plate 5 can guide the movement of the clamping jaw 22 to prevent the clamping jaw 22 from shaking.

[0042] The mandrel 23 can become the swing center axis of the swing lever 21 to maintain the reliability of the swing lever rotation, and can also provide an installation connection point for the swing lever 21 to improve the strength and stability of the swing lever 21 and further improve the reliability of the clamping tool; the part protruding into the installation groove 11 can also play a role in installation positioning of the rough polishing barrel 100, and improve the installation convenience and accuracy of the rough polishing barrel 100.

[0043] In order to detect whether the rough polishing barrel 100 is clamped in place, and ensure the stability of the rough polishing barrel 100 in the subsequent rough polishing process, the utility model also includes a detection mechanism 6, the detection mechanism 6 includes a detection rod 61 and a second cylinder 62, the detection rod 61 is arranged at intervals along the movement direction of the secondary guide rod 24B beside the secondary guide rod 24B, the second cylinder 62 drives the detection rod 61 to move and calculates its moving distance, whether the secondary guide rod 24B is clamped by being completely reset by detecting the moving distance of the detection rod 61 moving to contact the secondary guide rod 24B, that is, whether the clamping mechanism is moved to place. In other embodiments, the power driving the detection rod 61 to move can also be a motor. In addition, the detection mechanism can also be an infrared detection or photoelectric detection distance sensor.

[0044] Through the clamping tool, the rough polishing barrel 100 can be placed into the mounting groove 11 from the feeding and discharging opening or taken out from the mounting groove 11 in a mechanized feeding and discharging mode of a mechanical hand, so as to further reduce the work load of the rough polishing barrel 100 installation.

[0045] The working process of the utility model includes a clamping process and a detection process:

[0046] The clamping process: when the rough polishing barrel 100 needs to be installed, the first cylinder 31 extends to drive the driving connecting rod 32 to move, pushes the main guide rod 24A and the main jaw 22A to move, and the secondary jaw 22B and the secondary guide rod 24B move under the linkage action of the swing rod 21. At this time, the spring 33 on the two guide rods 24 is compressed, the secondary jaw 22B and the main jaw 22A move away from each other and are in an open state, the rough polishing barrel 100 is placed into the mounting groove 11, at this time, the positioning port at the bottom end of the rough polishing barrel 100 is attached to the mandrel 23, the first cylinder 31 drives the driving connecting rod 32 to retract, the main guide rod 24A and the secondary guide rod 24B are reset under the action of the spring 33 respectively, drive the main jaw 22A and the secondary jaw 22B to move towards each other, so that the jaw 22A and the secondary jaw 22B are in a clamping state to clamp the rough polishing barrel 100.

[0047] The detection process: after the rough polishing barrel 100 is clamped, the detection cylinder 62 extends to drive the detection rod 61 to move towards the secondary guide rod 24B until it abuts against the secondary guide rod 24B, and whether it is clamped in place is judged according to the moving distance of the detection rod 61.

[0048] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, those skilled in the art should understand that the remaining unexplained parts are prior art, and various changes made to the utility model in form and detail without departing from the spirit and scope of the utility model defined by the appended claims all fall within the protection scope of the utility model.

Claims

1. A grinding fixture, characterized by: The device comprises a mounting base, a clamping mechanism and a driving mechanism, the mounting base is provided with a mounting slot for mounting a grinding tool, the clamping mechanism is used for clamping or releasing the grinding tool in the mounting slot, and the driving mechanism comprises an electrically controlled power source and an elastic return member, the power source is used for driving the clamping mechanism to release the grinding tool under the electrically controlled action, and the elastic return member drives the clamping mechanism to clamp the grinding tool by means of the elastic force of the elastic return member.

2. A grinding fixture according to claim 1, characterized in that: The clamping mechanism comprises a swing rod, the swing rod has two swing ends and a swing center shaft between the two swing ends, and the two swing ends are connected with a claw respectively, so that the two claws are connected in linkage by means of the swing rod, so that the two claws are connected in synchronous reverse motion, and the selective clamping or releasing of the grinding tool is realized.

3. A grinding fixture according to claim 2, characterized in that: Each claw is fixedly connected with a guide rod, one of the guide rods is in transmission connection with the power source, the guide rod in transmission connection with the power source is defined as a main guide rod, the claw connected with the main guide rod is defined as a main claw, and the other claw is defined as a secondary claw, the main claw moves with the main guide rod under the driving action of the power source, and the secondary claw moves synchronously under the linkage of the swing rod, so that the synchronous reverse motion of the two claws is realized.

4. A grinding fixture according to claim 3, characterized in that: The two ends of the guide rod are respectively connected to a support in sliding mode, the support is in fixed connection with the mounting base, the elastic return member is arranged between the support and the claw, the power source is used for driving the claw to move to the direction of releasing the grinding tool and compressing the elastic return member, and the elastic return member drives the claw and the guide rod to return and move to the direction of clamping the grinding tool by means of the elastic force of the elastic return member.

5. A grinding fixture according to claim 3, characterized in that: The extension direction of the guide rod is defined as the X-axis direction, the direction of the mounting slot relative to the guide rod is defined as the Z-axis direction, the Y-axis direction is perpendicular to the X-axis direction and the Z-axis direction, the two guide rods are arranged along the Y-axis direction, the guide rod connected with the secondary claw is defined as a secondary guide rod, the claw is provided with a hook part extending from the guide rod to the Z-axis direction and formed at the end, the hook part is used for clamping the card slot of the grinding tool to clamp the grinding tool, and the hook part is located between the main guide rod and the secondary guide rod in the Y-axis direction.

6. A grinding fixture according to claim 3, characterized in that: Further comprising a detection mechanism, the detection mechanism comprises a detection rod, the guide rod connected with the secondary claw is defined as a secondary guide rod, and the detection rod is arranged beside the secondary guide rod along the movement direction of the secondary guide rod, whether the clamping mechanism is moved to the position is detected by detecting the movement distance of the detection rod to contact the secondary guide rod.

7. A grinding fixture according to claim 2, characterized in that: The swing center shaft of the swing rod is provided with a mandrel, and the end of the mandrel protrudes into the mounting slot for forming the mounting positioning structure of the grinding tool.

8. A grinding fixture according to claim 7, characterized in that: The mounting base is provided with a clamping hole communicated with the mounting groove, the mounting groove is provided with a feeding and discharging opening for the grinding tool to pass through and enter the mounting groove, the clamping hole is arranged opposite to the feeding and discharging opening, and the mandrel and the clamping jaw respectively protrude from the clamping hole and extend into the mounting groove.

9. A grinding fixture according to claim 8, characterized in that: The clamping jaw is provided with a through hole, the clamping hole of the mounting base is provided with a connecting plate, the connecting plate passes through the through hole of the clamping jaw, and the clamping jaw is further connected with a roller shaft, the roller shaft and the connecting plate form a rolling friction connection relationship, so that the clamping jaw drives the roller shaft to roll along the connecting plate.

10. A grinding fixture according to claim 8, characterized in that: The clamping hole of the mounting base is provided with a connecting plate, the mandrel is arranged on the connecting plate and protrudes from the connecting plate at the end to form the mounting and positioning structure, and the swing rod is rotationally connected to the mandrel.

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